- International families
- 24k2015 to 2024
- Leading country
- United States1.4× the next
- All families
- 84khome filings included
- Over five years
- Rising2020 to 2024 against the five before
Year by year
Patent families by country of origin and the year of the earliest filing, 2000 to 2025; 2025 is a part year, still filling in. International families are those for which protection was sought beyond one country.
Volume
International patent families in the capability, by the year of the earliest filing.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Share by country
Each country's share of the year's international families, in per cent: the capability's five largest countries of origin, 2015 to 2024, and the rest of the world.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Country leaderboard
International patent families, 2015 to 2024, by country of origin. Growth compares the latest five full years with the five before.
Ten largest
United States
Japan
Germany
China
South Korea
France
Sweden
Netherlands
Taiwan
Israel
5,643
4,132
3,729
2,886
1,890
858
726
571
454
324
| 2000 to 2025 | ||||||
|---|---|---|---|---|---|---|
| 1 | United States | 5,643 | 23.5% | 1.1× | 9,061 | |
| 2 | Japan | 4,132 | 17.2% | 1.0× | 7,305 | |
| 3 | Germany | 3,729 | 15.6% | 1.2× | 5,757 | |
| 4 | China | 2,886 | 12.0% | 2.3× | 47,379 | |
| 5 | South Korea | 1,890 | 7.9% | 1.6× | 6,545 | |
| 6 | France | 858 | 3.6% | 1.1× | 1,094 | |
| 7 | Sweden | 726 | 3.0% | 1.4× | 764 | |
| 8 | Netherlands | 571 | 2.4% | 2.3× | 616 | |
| 9 | Taiwan | 454 | 1.9% | 1.4× | 701 | |
| 10 | Israel | 324 | 1.4% | 1.0× | 409 | |
| 11 | United Kingdom | 323 | 1.3% | 1.0× | 432 | |
| 12 | Canada | 308 | 1.3% | 0.9× | 377 | |
| 13 | Switzerland | 306 | 1.3% | 2.6× | 333 | |
| 14 | Finland | 281 | 1.2% | 3.4× | 302 | |
| 15 | Italy | 204 | 0.9% | 1.0× | 271 | |
| 16 | Australia | 107 | 0.4% | 1.0× | 139 | |
| 17 | Singapore | 104 | 0.4% | 4.0× | 120 | |
| 18 | Austria | 97 | 0.4% | 0.8× | 105 | |
| 19 | Belgium | 95 | 0.4% | 1.3× | 113 | |
| 20 | Türkiye | 87 | 0.4% | 3.4× | 157 | |
| 21 | India | 79 | 0.3% | 1.4× | 133 | |
| 22 | Norway | 75 | 0.3% | 1.4× | 93 | |
| 23 | Luxembourg | 49 | 0.2% | 0.2× | 68 | |
| 24 | Spain | 46 | 0.2% | 0.7× | 60 | |
| 25 | Russia | 46 | 0.2% | 0.6× | 1,286 | |
| 26 | Denmark | 42 | 0.2% | 0.6× | 43 | |
| 27 | Saudi Arabia | 32 | 0.1% | 0.3× | 50 | |
| 28 | Ireland | 30 | 0.1% | 0.8× | 43 | |
| 29 | Cayman Islands | 20 | 0.1% | 0.5× | 34 | |
| 30 | Brazil | 15 | 0.1% | 0.5× | 33 | |
| 31 | Poland | 14 | 0.1% | 3.7× | 66 | |
| 32 | Hong Kong | 13 | 0.1% | 0.3× | 22 | |
| 33 | South Africa | 10 | 0.0% | 1.5× | 11 | |
| 34 | New Zealand | 8 | 0.0% | 0.6× | 11 | |
| 35 | Czechia | 7 | 0.0% | 1.3× | 21 | |
| 36 | Mexico | 6 | 0.0% | 0.2× | 14 | |
| 37 | Portugal | 6 | 0.0% | 2.0× | 8 | |
| 38 | Hungary | 5 | 0.0% | 1.5× | 6 | |
| 39 | Liechtenstein | 2 | 0.0% | 1.0× | 2 | |
| 40 | Malaysia | 1 | 0.0% | – | 6 |
Applicants
The largest applicants by international patent families, 2015 to 2024: across the world, then within each of the five countries with the most families in Radar & Radiofrequency Sensing. Names are as held in the source and are not consolidated across subsidiaries.
Global
23,972 international families
BOSCH GMBH ROBERT · Germany
QUALCOMM INC · United States
HUAWEI TECH CO LTD · China
MITSUBISHI ELECTRIC CORP · Japan
SAMSUNG ELECTRONICS CO LTD · South Korea
DENSO CORP · Japan
856
828
721
547
498
456
United States
5,643 international families
QUALCOMM INC
GM GLOBAL TECH OPERATIONS LLC
FORD GLOBAL TECH LLC
HONEYWELL INT INC
GOOGLE LLC
RAYTHEON CO
789
369
303
208
132
111
Japan
4,132 international families
MITSUBISHI ELECTRIC CORP
DENSO CORP
TOYOTA MOTOR CO LTD
TOYOTA MOTOR CORP
NEC CORP
PANASONIC IP MAN CO LTD
532
445
295
292
242
205
Germany
3,729 international families
BOSCH GMBH ROBERT
INFINEON TECHNOLOGIES AG
ROBERT BOSCH CO LTD
VALEO SCHALTER & SENSOREN GMBH
VOLKSWAGEN AG
GRIESHABER VEGA KG
846
320
254
171
154
146
China
2,886 international families
HUAWEI TECH CO LTD
SZ DJI TECHNOLOGY CO LTD
SHENZHEN YINWANG INTELLIGENT TECHNOLOGY CO LTD
ZTE CORP
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
VIVO MOBILE COMMUNICATION CO LTD
701
181
131
96
80
53
South Korea
1,890 international families
SAMSUNG ELECTRONICS CO LTD
HYUNDAI MOTOR CO LTD
LG ELECTRONICS INC
KIA MOTORS CORP
HL KLEMOVE CORP
KIA CORP
498
244
204
159
149
147
Similar capabilities
The nine capabilities that share the most international patent families with Radar & Radiofrequency Sensing, 2015 to 2024: the families counted in both as a share of those counted in either. Each card shows its five largest countries.
National Security
Signals & Cyber Intelligence
7.3% shared · 1,792 families in both
United States
Japan
China
South Korea
Sweden
635
301
286
241
169
Critical Technology
Advanced Imaging & Photonic Sensing
6.7% shared · 5,071 families in both
Japan
United States
China
South Korea
Germany
15,415
10,867
7,351
5,927
5,220
Critical Technology
Acoustic & Undersea Sensing
6.3% shared · 2,007 families in both
United States
Japan
Germany
China
South Korea
2,064
1,735
1,370
1,097
687
National Security
Imagery & Geospatial Intelligence
4.4% shared · 1,220 families in both
United States
China
Japan
Germany
South Korea
963
914
891
665
209
Critical Technology
Autonomous Systems & Trusted Autonomy
4.4% shared · 3,396 families in both
Japan
United States
China
Germany
South Korea
15,331
13,144
8,455
5,859
5,850
Strategic Infrastructure
Air Navigation & Traffic Management
4.2% shared · 1,265 families in both
United States
Japan
China
France
Germany
2,940
1,014
815
738
380
National Security
Electronic Warfare & Spectrum Operations
2.6% shared · 674 families in both
United States
China
Japan
Germany
South Korea
587
328
227
225
120
Strategic Infrastructure
Hydrometeorology & Early Warning
2.2% shared · 674 families in both
China
United States
Japan
South Korea
Germany
2,007
1,837
1,145
638
314
National Security
Technical & Measurement Intelligence
2.1% shared · 494 families in both
United States
Germany
Japan
South Korea
China
137
98
70
45
24
Crosswalk
How Radar & Radiofrequency Sensing is matched to the patent classifications. The entries below were chosen for it; each stands for itself and everything beneath it in the scheme, 361 Cooperative entries in all. A patent family counts when any of its codes, in either scheme and at any office, falls under one of them. Codes since retired are placed under the entries that replaced them.
| Entry | Title in the scheme | Why it is chosen | CPC codes | IPC codes | Documents |
|---|---|---|---|---|---|
| G01S13/00 | Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified | Radar systems | 221 | 68 | 679,945 |
| G01S7/02 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 | Radar components, signal processing and countermeasures | 96 | 28 | 301,849 |
| G01S3/02 | Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves | Radio direction finding, including passive sensing | 47 | 37 | 37,644 |
| G01V3/12 | Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves | Detecting objects with electromagnetic waves | 1 | 1 | 16,826 |
CPC and IPC codes are the codes in use on patent documents, at any office, that fall under the entry. Documents is the larger of the two schemes' counts of documents carrying one of them. An entry with no IPC codes can be told apart only in the Cooperative scheme.
The Cooperative codes in use that count towards Radar & Radiofrequency Sensing: 365 codes on 1,031,974 documents. The 150 most used are listed; the full list is in the cpc-to-capability.csv download.
| Code | Title | Under entry | How placed | Documents |
|---|---|---|---|---|
| G01S13/931 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles | G01S13/00 | In the scheme | 64,268 |
| G01S13/88 | Radar or analogous systems specially adapted for specific applications | G01S13/00 | In the scheme | 24,969 |
| G01S13/867 | Combination of radar systems with cameras | G01S13/00 | In the scheme | 22,177 |
| G01S13/89 | Radar or analogous systems specially adapted for specific applications for mapping or imaging | G01S13/00 | In the scheme | 19,679 |
| G01S7/41 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section | G01S7/02 | In the scheme | 17,810 |
| G01S7/40 | Means for monitoring or calibrating | G01S7/02 | In the scheme | 17,024 |
| G01S2013/93271 | Sensor installation details in the front of the vehicles | G01S13/00 | In the scheme | 16,312 |
| G01S13/42 | Simultaneous measurement of distance and other co-ordinates | G01S13/00 | In the scheme | 15,232 |
| G01S13/86 | Combinations of radar systems with non-radar systems, e.g. sonar, direction finder | G01S13/00 | In the scheme | 14,619 |
| G01S13/87 | Combinations of radar systems, e.g. primary radar and secondary radar | G01S13/00 | In the scheme | 13,719 |
| G01S7/415 | Identification of targets based on measurements of movement associated with the target | G01S7/02 | In the scheme | 12,955 |
| G01V3/12 | Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves | G01V3/12 | In the scheme | 12,536 |
| G01S7/02 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 | G01S7/02 | In the scheme | 12,525 |
| G01S13/765 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder | G01S13/00 | In the scheme | 11,747 |
| G01S13/003 | Bistatic radar systems; Multistatic radar systems | G01S13/00 | In the scheme | 11,698 |
| G01S7/03 | Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver | G01S7/02 | In the scheme | 11,480 |
| G01S13/865 | Combination of radar systems with lidar systems | G01S13/00 | In the scheme | 11,341 |
| G01S13/878 | Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector | G01S13/00 | In the scheme | 10,627 |
| G01S13/04 | Systems determining presence of a target | G01S13/00 | In the scheme | 9,967 |
| G01S13/584 | Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements | G01S13/00 | In the scheme | 9,410 |
| G01S13/343 | Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sawtooth modulation | G01S13/00 | In the scheme | 9,291 |
| G01S13/34 | Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal | G01S13/00 | In the scheme | 9,267 |
| G01S7/417 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section involving the use of neural networks | G01S7/02 | In the scheme | 9,126 |
| G01S2013/932 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction | G01S13/00 | In the scheme | 9,027 |
| G01S7/032 | Constructional details for solid-state radar subsystems | G01S7/02 | In the scheme | 8,827 |
| G01S2013/9323 | Alternative operation using light waves | G01S13/00 | In the scheme | 8,637 |
| G01S13/0209 | Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband | G01S13/00 | In the scheme | 8,518 |
| G01S13/58 | Velocity or trajectory determination systems; Sense-of-movement determination systems | G01S13/00 | In the scheme | 8,273 |
| G01S7/36 | Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures | G01S7/02 | In the scheme | 8,095 |
| G01S13/08 | Systems for measuring distance only | G01S13/00 | In the scheme | 8,091 |
| G01S7/023 | Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques | G01S7/02 | In the scheme | 8,090 |
| G01S7/411 | Identification of targets based on measurements of radar reflectivity | G01S7/02 | In the scheme | 7,840 |
| G01S13/90 | Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques | G01S13/00 | In the scheme | 7,816 |
| G01S13/56 | Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection | G01S13/00 | In the scheme | 7,662 |
| G01S7/354 | Extracting wanted echo-signals | G01S7/02 | In the scheme | 7,647 |
| G01S2013/93272 | Sensor installation details in the back of the vehicles | G01S13/00 | In the scheme | 7,106 |
| G01S7/027 | Constructional details of housings, e.g. form, type, material or ruggedness | G01S7/02 | In the scheme | 7,037 |
| G01S13/726 | Multiple target tracking | G01S13/00 | In the scheme | 7,034 |
| G01S13/06 | Systems determining position data of a target | G01S13/00 | In the scheme | 6,978 |
| G01S7/414 | Discriminating targets with respect to background clutter | G01S7/02 | In the scheme | 6,963 |
| G01S7/282 | Transmitters | G01S7/02 | In the scheme | 6,687 |
| G01S7/356 | Receivers involving particularities of FFT processing | G01S7/02 | In the scheme | 6,495 |
| G01S13/885 | Radar or analogous systems specially adapted for specific applications for ground probing | G01S13/00 | In the scheme | 6,396 |
| G01S7/4026 | Antenna boresight | G01S7/02 | In the scheme | 6,338 |
| G01S2013/9316 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations | G01S13/00 | In the scheme | 6,262 |
| G01S2013/93185 | Controlling the brakes | G01S13/00 | In the scheme | 6,197 |
| G01S7/352 | Receivers | G01S7/02 | In the scheme | 6,146 |
| G01S7/35 | Details of non-pulse systems | G01S7/02 | In the scheme | 5,998 |
| G01S7/4004 | Means for monitoring or calibrating of parts of a radar system | G01S7/02 | In the scheme | 5,947 |
| G01S2013/93274 | Sensor installation details on the side of the vehicles | G01S13/00 | In the scheme | 5,938 |
| G01S13/66 | Radar-tracking systems; Analogous systems | G01S13/00 | In the scheme | 5,923 |
| G01S7/021 | Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals | G01S7/02 | In the scheme | 5,844 |
| G01S7/292 | Extracting wanted echo-signals | G01S7/02 | In the scheme | 5,403 |
| G01S3/14 | Systems for determining direction or deviation from predetermined direction | G01S3/02 | In the scheme | 5,397 |
| G01S2013/9324 | Alternative operation using ultrasonic waves | G01S13/00 | In the scheme | 5,390 |
| G01S13/74 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems | G01S13/00 | In the scheme | 5,376 |
| G01S7/4021 | Means for monitoring or calibrating of parts of a radar system of receivers | G01S7/02 | In the scheme | 5,216 |
| G01S2013/9321 | Velocity regulation, e.g. cruise control | G01S13/00 | In the scheme | 5,116 |
| G01S7/4052 | Means for monitoring or calibrating by simulation of echoes | G01S7/02 | In the scheme | 5,091 |
| G01S13/02 | Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems | G01S13/00 | In the scheme | 4,996 |
| G01S13/91 | Radar or analogous systems specially adapted for specific applications for traffic control | G01S13/00 | In the scheme | 4,989 |
| G01S7/412 | Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values | G01S7/02 | In the scheme | 4,897 |
| G01S2013/93275 | Sensor installation details in the bumper area | G01S13/00 | In the scheme | 4,698 |
| G01S13/95 | Radar or analogous systems specially adapted for specific applications for meteorological use | G01S13/00 | In the scheme | 4,628 |
| G01S13/426 | Scanning radar, e.g. 3D radar | G01S13/00 | In the scheme | 4,613 |
| G01S13/345 | Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using triangular modulation | G01S13/00 | In the scheme | 4,571 |
| G01S13/93 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes | G01S13/00 | In the scheme | 4,425 |
| G01S13/933 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft | G01S13/00 | In the scheme | 4,420 |
| G01S7/285 | Receivers | G01S7/02 | In the scheme | 4,405 |
| G01S2013/0245 | Radar with phased array antenna | G01S13/00 | In the scheme | 4,287 |
| G01S2013/9315 | Monitoring blind spots | G01S13/00 | In the scheme | 4,156 |
| G01S13/862 | Combination of radar systems with sonar systems | G01S13/00 | In the scheme | 4,119 |
| G01S3/48 | Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured | G01S3/02 | In the scheme | 4,116 |
| G01S2013/9325 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoons | G01S13/00 | In the scheme | 4,111 |
| G01S13/887 | Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons | G01S13/00 | In the scheme | 4,108 |
| G01S13/72 | Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radar | G01S13/00 | In the scheme | 4,027 |
| G01S7/4008 | Means for monitoring or calibrating of parts of a radar system of transmitters | G01S7/02 | In the scheme | 3,884 |
| G01S13/723 | Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radar by using numerical data | G01S13/00 | In the scheme | 3,880 |
| G01S2013/9322 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using additional data, e.g. driver condition, road state or weather data | G01S13/00 | In the scheme | 3,747 |
| G01S13/582 | Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements | G01S13/00 | In the scheme | 3,679 |
| G01S13/9023 | SAR image post-processing techniques combined with interferometric techniques | G01S13/00 | In the scheme | 3,663 |
| G01S7/418 | Theoretical aspects | G01S7/02 | In the scheme | 3,661 |
| G01S7/2813 | Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays | G01S7/02 | In the scheme | 3,532 |
| G01S3/46 | Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems | G01S3/02 | In the scheme | 3,452 |
| G01S2013/9318 | Controlling the steering | G01S13/00 | In the scheme | 3,427 |
| G01S13/50 | Systems of measurement based on relative movement of target | G01S13/00 | In the scheme | 3,402 |
| G01S13/60 | Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track | G01S13/00 | In the scheme | 3,392 |
| G01S13/886 | Radar or analogous systems specially adapted for specific applications for alarm systems | G01S13/00 | In the scheme | 3,392 |
| G01S2013/9314 | Parking operations | G01S13/00 | In the scheme | 3,377 |
| G01S13/32 | Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated | G01S13/00 | In the scheme | 3,356 |
| G01S7/38 | Jamming means, e.g. producing false echoes | G01S7/02 | In the scheme | 3,332 |
| G01S2013/9319 | Controlling the accelerator | G01S13/00 | In the scheme | 3,316 |
| G01S13/46 | Indirect determination of position data | G01S13/00 | In the scheme | 3,212 |
| G01S3/043 | Receivers | G01S3/02 | In the scheme | 3,197 |
| G01S7/28 | Details of pulse systems | G01S7/02 | In the scheme | 3,120 |
| G01S7/295 | Means for transforming co-ordinates or for evaluating data, e.g. using computers | G01S7/02 | In the scheme | 3,099 |
| G01S13/767 | Responders; Transponders | G01S13/00 | In the scheme | 3,065 |
| G01S13/876 | Combination of several spaced transponders or reflectors of known location for determining the position of a receiver | G01S13/00 | In the scheme | 3,010 |
| G01S7/2923 | Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods | G01S7/02 | In the scheme | 2,965 |
| G01S3/74 | Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals | G01S3/02 | In the scheme | 2,957 |
| G01S13/536 | Discriminating between fixed and moving objects or between objects moving at different speeds using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves | G01S13/00 | In the scheme | 2,882 |
| G01S7/403 | Antenna boresight in azimuth, i.e. in the horizontal plane | G01S7/02 | In the scheme | 2,875 |
| G01S13/75 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors | G01S13/00 | In the scheme | 2,856 |
| G01S13/9021 | SAR image post-processing techniques | G01S13/00 | In the scheme | 2,849 |
| G01S13/10 | Systems for measuring distance only using transmission of interrupted, pulse modulated waves | G01S13/00 | In the scheme | 2,808 |
| G01S13/825 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder | G01S13/00 | In the scheme | 2,790 |
| G01S13/325 | Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. P.S.K. signals | G01S13/00 | In the scheme | 2,727 |
| G01S13/52 | Discriminating between fixed and moving objects or between objects moving at different speeds | G01S13/00 | In the scheme | 2,690 |
| G01S13/583 | Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets | G01S13/00 | In the scheme | 2,644 |
| G01S13/937 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of marine craft | G01S13/00 | In the scheme | 2,628 |
| G01S7/0232 | Avoidance by frequency multiplex | G01S7/02 | In the scheme | 2,599 |
| G01S13/904 | SAR modes | G01S13/00 | In the scheme | 2,596 |
| G01S7/04 | Display arrangements | G01S7/02 | In the scheme | 2,576 |
| G01S7/2883 | Coherent receivers using FFT processing | G01S7/02 | In the scheme | 2,503 |
| G01S7/024 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects | G01S7/02 | In the scheme | 2,494 |
| G01S13/882 | Radar or analogous systems specially adapted for specific applications for altimeters | G01S13/00 | In the scheme | 2,471 |
| G01S13/84 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement | G01S13/00 | In the scheme | 2,438 |
| G01S2013/0254 | Active array antenna | G01S13/00 | In the scheme | 2,376 |
| G01S13/589 | Velocity or trajectory determination systems; Sense-of-movement determination systems measuring the velocity vector | G01S13/00 | In the scheme | 2,318 |
| G01S7/4091 | Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder during normal radar operation | G01S7/02 | In the scheme | 2,264 |
| G01S13/78 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe | G01S13/00 | In the scheme | 2,245 |
| G01S13/44 | Monopulse radar, i.e. simultaneous lobing | G01S13/00 | In the scheme | 2,201 |
| G01S2013/466 | Indirect determination of position data by Trilateration, i.e. two antennas or two sensors determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the antennas or sensors, the position data of the target is determined | G01S13/00 | In the scheme | 2,175 |
| G01S13/76 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted | G01S13/00 | In the scheme | 2,169 |
| G01S7/288 | Coherent receivers | G01S7/02 | In the scheme | 2,162 |
| G01S13/951 | Radar or analogous systems specially adapted for specific applications for meteorological use ground based | G01S13/00 | In the scheme | 2,156 |
| G01S2013/93273 | Sensor installation details on the top of the vehicles | G01S13/00 | In the scheme | 2,123 |
| G01S7/0235 | Avoidance by time multiplex | G01S7/02 | In the scheme | 2,116 |
| G01S7/2927 | Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value | G01S7/02 | In the scheme | 2,090 |
| G01S13/758 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal | G01S13/00 | In the scheme | 2,088 |
| G01S7/4034 | Antenna boresight in elevation, i.e. in the vertical plane | G01S7/02 | In the scheme | 2,086 |
| G01S7/4086 | Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder in a calibrating environment, e.g. anechoic chamber | G01S7/02 | In the scheme | 2,064 |
| G01S13/935 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft for terrain-avoidance | G01S13/00 | In the scheme | 2,063 |
| G01S13/62 | Sense-of-movement determination | G01S13/00 | In the scheme | 2,050 |
| G01S13/92 | Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement | G01S13/00 | In the scheme | 2,030 |
| G01S13/18 | Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used | G01S13/00 | In the scheme | 2,029 |
| G01S13/4454 | Monopulse radar, i.e. simultaneous lobing phase comparisons monopulse, i.e. comparing the echo signals received by an interferometric antenna arrangement | G01S13/00 | In the scheme | 2,022 |
| G01S13/00 | Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified | G01S13/00 | In the scheme | 2,018 |
| G01S13/24 | Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave | G01S13/00 | In the scheme | 2,018 |
| G01S13/282 | Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using a frequency modulated carrier wave | G01S13/00 | In the scheme | 1,990 |
| G01S13/751 | Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal | G01S13/00 | In the scheme | 1,951 |
| G01S7/025 | Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of linearly polarised waves | G01S7/02 | In the scheme | 1,935 |
| G01S2013/9327 | Sensor installation details | G01S13/00 | In the scheme | 1,932 |
| G01S7/22 | Producing cursor lines and indicia by electronic means | G01S7/02 | In the scheme | 1,924 |
| G01S2013/9329 | Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles cooperating with reflectors or transponders | G01S13/00 | In the scheme | 1,903 |
| G01S7/358 | Receivers using I/Q processing | G01S7/02 | In the scheme | 1,876 |
| G01S13/48 | Indirect determination of position data using multiple beams at emission or reception | G01S13/00 | In the scheme | 1,872 |
| G01S13/913 | Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes | G01S13/00 | In the scheme | 1,847 |
| G01S13/953 | Radar or analogous systems specially adapted for specific applications for meteorological use mounted on aircraft | G01S13/00 | In the scheme | 1,839 |
| G01S13/9027 | Pattern recognition for feature extraction | G01S13/00 | In the scheme | 1,828 |