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Critical Technology

Radar & Radiofrequency Sensing

The capacity to sense with radio: radar across bands and apertures, passive radio-frequency sensing, and the detection technologies that find what moves, including the fastest things that fly. One of the capabilities of Sensing, Timing & Navigation.

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
1United States5,64323.5%1.1×
9,061
2Japan4,13217.2%1.0×
7,305
3Germany3,72915.6%1.2×
5,757
4China2,88612.0%2.3×
47,379
5South Korea1,8907.9%1.6×
6,545
6France8583.6%1.1×
1,094
7Sweden7263.0%1.4×
764
8Netherlands5712.4%2.3×
616
9Taiwan4541.9%1.4×
701
10Israel3241.4%1.0×
409
11United Kingdom3231.3%1.0×
432
12Canada3081.3%0.9×
377
13Switzerland3061.3%2.6×
333
14Finland2811.2%3.4×
302
15Italy2040.9%1.0×
271
16Australia1070.4%1.0×
139
17Singapore1040.4%4.0×
120
18Austria970.4%0.8×
105
19Belgium950.4%1.3×
113
20Türkiye870.4%3.4×
157
21India790.3%1.4×
133
22Norway750.3%1.4×
93
23Luxembourg490.2%0.2×
68
24Spain460.2%0.7×
60
25Russia460.2%0.6×
1,286
26Denmark420.2%0.6×
43
27Saudi Arabia320.1%0.3×
50
28Ireland300.1%0.8×
43
29Cayman Islands200.1%0.5×
34
30Brazil150.1%0.5×
33
31Poland140.1%3.7×
66
32Hong Kong130.1%0.3×
22
33South Africa100.0%1.5×
11
34New Zealand80.0%0.6×
11
35Czechia70.0%1.3×
21
36Mexico60.0%0.2×
14
37Portugal60.0%2.0×
8
38Hungary50.0%1.5×
6
39Liechtenstein20.0%1.0×
2
40Malaysia10.0%–
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.

EntryTitle in the schemeWhy it is chosenCPC codesIPC codesDocuments
G01S13/00Systems 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 unspecifiedRadar systems22168679,945
G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00Radar components, signal processing and countermeasures9628301,849
G01S3/02Direction-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 wavesRadio direction finding, including passive sensing473737,644
G01V3/12Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic wavesDetecting objects with electromagnetic waves1116,826

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.

CodeTitleUnder entryHow placedDocuments
G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehiclesG01S13/00In the scheme64,268
G01S13/88Radar or analogous systems specially adapted for specific applicationsG01S13/00In the scheme24,969
G01S13/867Combination of radar systems with camerasG01S13/00In the scheme22,177
G01S13/89Radar or analogous systems specially adapted for specific applications for mapping or imagingG01S13/00In the scheme19,679
G01S7/41Details 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-sectionG01S7/02In the scheme17,810
G01S7/40Means for monitoring or calibratingG01S7/02In the scheme17,024
G01S2013/93271Sensor installation details in the front of the vehiclesG01S13/00In the scheme16,312
G01S13/42Simultaneous measurement of distance and other co-ordinatesG01S13/00In the scheme15,232
G01S13/86Combinations of radar systems with non-radar systems, e.g. sonar, direction finderG01S13/00In the scheme14,619
G01S13/87Combinations of radar systems, e.g. primary radar and secondary radarG01S13/00In the scheme13,719
G01S7/415Identification of targets based on measurements of movement associated with the targetG01S7/02In the scheme12,955
G01V3/12Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic wavesG01V3/12In the scheme12,536
G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00G01S7/02In the scheme12,525
G01S13/765Systems 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 responderG01S13/00In the scheme11,747
G01S13/003Bistatic radar systems; Multistatic radar systemsG01S13/00In the scheme11,698
G01S7/03Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiverG01S7/02In the scheme11,480
G01S13/865Combination of radar systems with lidar systemsG01S13/00In the scheme11,341
G01S13/878Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflectorG01S13/00In the scheme10,627
G01S13/04Systems determining presence of a targetG01S13/00In the scheme9,967
G01S13/584Velocity 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 measurementsG01S13/00In the scheme9,410
G01S13/343Systems 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 modulationG01S13/00In the scheme9,291
G01S13/34Systems 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 signalG01S13/00In the scheme9,267
G01S7/417Details 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 networksG01S7/02In the scheme9,126
G01S2013/932Radar 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 directionG01S13/00In the scheme9,027
G01S7/032Constructional details for solid-state radar subsystemsG01S7/02In the scheme8,827
G01S2013/9323Alternative operation using light wavesG01S13/00In the scheme8,637
G01S13/0209Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawidebandG01S13/00In the scheme8,518
G01S13/58Velocity or trajectory determination systems; Sense-of-movement determination systemsG01S13/00In the scheme8,273
G01S7/36Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measuresG01S7/02In the scheme8,095
G01S13/08Systems for measuring distance onlyG01S13/00In the scheme8,091
G01S7/023Interference 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 techniquesG01S7/02In the scheme8,090
G01S7/411Identification of targets based on measurements of radar reflectivityG01S7/02In the scheme7,840
G01S13/90Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniquesG01S13/00In the scheme7,816
G01S13/56Discriminating between fixed and moving objects or between objects moving at different speeds for presence detectionG01S13/00In the scheme7,662
G01S7/354Extracting wanted echo-signalsG01S7/02In the scheme7,647
G01S2013/93272Sensor installation details in the back of the vehiclesG01S13/00In the scheme7,106
G01S7/027Constructional details of housings, e.g. form, type, material or ruggednessG01S7/02In the scheme7,037
G01S13/726Multiple target trackingG01S13/00In the scheme7,034
G01S13/06Systems determining position data of a targetG01S13/00In the scheme6,978
G01S7/414Discriminating targets with respect to background clutterG01S7/02In the scheme6,963
G01S7/282TransmittersG01S7/02In the scheme6,687
G01S7/356Receivers involving particularities of FFT processingG01S7/02In the scheme6,495
G01S13/885Radar or analogous systems specially adapted for specific applications for ground probingG01S13/00In the scheme6,396
G01S7/4026Antenna boresightG01S7/02In the scheme6,338
G01S2013/9316Radar 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 stationsG01S13/00In the scheme6,262
G01S2013/93185Controlling the brakesG01S13/00In the scheme6,197
G01S7/352ReceiversG01S7/02In the scheme6,146
G01S7/35Details of non-pulse systemsG01S7/02In the scheme5,998
G01S7/4004Means for monitoring or calibrating of parts of a radar systemG01S7/02In the scheme5,947
G01S2013/93274Sensor installation details on the side of the vehiclesG01S13/00In the scheme5,938
G01S13/66Radar-tracking systems; Analogous systemsG01S13/00In the scheme5,923
G01S7/021Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signalsG01S7/02In the scheme5,844
G01S7/292Extracting wanted echo-signalsG01S7/02In the scheme5,403
G01S3/14Systems for determining direction or deviation from predetermined directionG01S3/02In the scheme5,397
G01S2013/9324Alternative operation using ultrasonic wavesG01S13/00In the scheme5,390
G01S13/74Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systemsG01S13/00In the scheme5,376
G01S7/4021Means for monitoring or calibrating of parts of a radar system of receiversG01S7/02In the scheme5,216
G01S2013/9321Velocity regulation, e.g. cruise controlG01S13/00In the scheme5,116
G01S7/4052Means for monitoring or calibrating by simulation of echoesG01S7/02In the scheme5,091
G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systemsG01S13/00In the scheme4,996
G01S13/91Radar or analogous systems specially adapted for specific applications for traffic controlG01S13/00In the scheme4,989
G01S7/412Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored valuesG01S7/02In the scheme4,897
G01S2013/93275Sensor installation details in the bumper areaG01S13/00In the scheme4,698
G01S13/95Radar or analogous systems specially adapted for specific applications for meteorological useG01S13/00In the scheme4,628
G01S13/426Scanning radar, e.g. 3D radarG01S13/00In the scheme4,613
G01S13/345Systems 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 modulationG01S13/00In the scheme4,571
G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposesG01S13/00In the scheme4,425
G01S13/933Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraftG01S13/00In the scheme4,420
G01S7/285ReceiversG01S7/02In the scheme4,405
G01S2013/0245Radar with phased array antennaG01S13/00In the scheme4,287
G01S2013/9315Monitoring blind spotsG01S13/00In the scheme4,156
G01S13/862Combination of radar systems with sonar systemsG01S13/00In the scheme4,119
G01S3/48Systems 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 measuredG01S3/02In the scheme4,116
G01S2013/9325Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoonsG01S13/00In the scheme4,111
G01S13/887Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weaponsG01S13/00In the scheme4,108
G01S13/72Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radarG01S13/00In the scheme4,027
G01S7/4008Means for monitoring or calibrating of parts of a radar system of transmittersG01S7/02In the scheme3,884
G01S13/723Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radar by using numerical dataG01S13/00In the scheme3,880
G01S2013/9322Radar 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 dataG01S13/00In the scheme3,747
G01S13/582Velocity 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 measurementsG01S13/00In the scheme3,679
G01S13/9023SAR image post-processing techniques combined with interferometric techniquesG01S13/00In the scheme3,663
G01S7/418Theoretical aspectsG01S7/02In the scheme3,661
G01S7/2813Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arraysG01S7/02In the scheme3,532
G01S3/46Systems 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 systemsG01S3/02In the scheme3,452
G01S2013/9318Controlling the steeringG01S13/00In the scheme3,427
G01S13/50Systems of measurement based on relative movement of targetG01S13/00In the scheme3,402
G01S13/60Velocity 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 trackG01S13/00In the scheme3,392
G01S13/886Radar or analogous systems specially adapted for specific applications for alarm systemsG01S13/00In the scheme3,392
G01S2013/9314Parking operationsG01S13/00In the scheme3,377
G01S13/32Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulatedG01S13/00In the scheme3,356
G01S7/38Jamming means, e.g. producing false echoesG01S7/02In the scheme3,332
G01S2013/9319Controlling the acceleratorG01S13/00In the scheme3,316
G01S13/46Indirect determination of position dataG01S13/00In the scheme3,212
G01S3/043ReceiversG01S3/02In the scheme3,197
G01S7/28Details of pulse systemsG01S7/02In the scheme3,120
G01S7/295Means for transforming co-ordinates or for evaluating data, e.g. using computersG01S7/02In the scheme3,099
G01S13/767Responders; TranspondersG01S13/00In the scheme3,065
G01S13/876Combination of several spaced transponders or reflectors of known location for determining the position of a receiverG01S13/00In the scheme3,010
G01S7/2923Extracting wanted echo-signals based on data belonging to a number of consecutive radar periodsG01S7/02In the scheme2,965
G01S3/74Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signalsG01S3/02In the scheme2,957
G01S13/536Discriminating between fixed and moving objects or between objects moving at different speeds using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated wavesG01S13/00In the scheme2,882
G01S7/403Antenna boresight in azimuth, i.e. in the horizontal planeG01S7/02In the scheme2,875
G01S13/75Systems 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 reflectorsG01S13/00In the scheme2,856
G01S13/9021SAR image post-processing techniquesG01S13/00In the scheme2,849
G01S13/10Systems for measuring distance only using transmission of interrupted, pulse modulated wavesG01S13/00In the scheme2,808
G01S13/825Systems 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 responderG01S13/00In the scheme2,790
G01S13/325Systems 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. signalsG01S13/00In the scheme2,727
G01S13/52Discriminating between fixed and moving objects or between objects moving at different speedsG01S13/00In the scheme2,690
G01S13/583Velocity 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 targetsG01S13/00In the scheme2,644
G01S13/937Radar or analogous systems specially adapted for specific applications for anti-collision purposes of marine craftG01S13/00In the scheme2,628
G01S7/0232Avoidance by frequency multiplexG01S7/02In the scheme2,599
G01S13/904SAR modesG01S13/00In the scheme2,596
G01S7/04Display arrangementsG01S7/02In the scheme2,576
G01S7/2883Coherent receivers using FFT processingG01S7/02In the scheme2,503
G01S7/024Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effectsG01S7/02In the scheme2,494
G01S13/882Radar or analogous systems specially adapted for specific applications for altimetersG01S13/00In the scheme2,471
G01S13/84Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurementG01S13/00In the scheme2,438
G01S2013/0254Active array antennaG01S13/00In the scheme2,376
G01S13/589Velocity or trajectory determination systems; Sense-of-movement determination systems measuring the velocity vectorG01S13/00In the scheme2,318
G01S7/4091Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder during normal radar operationG01S7/02In the scheme2,264
G01S13/78Systems 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 foeG01S13/00In the scheme2,245
G01S13/44Monopulse radar, i.e. simultaneous lobingG01S13/00In the scheme2,201
G01S2013/466Indirect 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 determinedG01S13/00In the scheme2,175
G01S13/76Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmittedG01S13/00In the scheme2,169
G01S7/288Coherent receiversG01S7/02In the scheme2,162
G01S13/951Radar or analogous systems specially adapted for specific applications for meteorological use ground basedG01S13/00In the scheme2,156
G01S2013/93273Sensor installation details on the top of the vehiclesG01S13/00In the scheme2,123
G01S7/0235Avoidance by time multiplexG01S7/02In the scheme2,116
G01S7/2927Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold valueG01S7/02In the scheme2,090
G01S13/758Systems 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 signalG01S13/00In the scheme2,088
G01S7/4034Antenna boresight in elevation, i.e. in the vertical planeG01S7/02In the scheme2,086
G01S7/4086Means 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 chamberG01S7/02In the scheme2,064
G01S13/935Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft for terrain-avoidanceG01S13/00In the scheme2,063
G01S13/62Sense-of-movement determinationG01S13/00In the scheme2,050
G01S13/92Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurementG01S13/00In the scheme2,030
G01S13/18Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are usedG01S13/00In the scheme2,029
G01S13/4454Monopulse radar, i.e. simultaneous lobing phase comparisons monopulse, i.e. comparing the echo signals received by an interferometric antenna arrangementG01S13/00In the scheme2,022
G01S13/00Systems 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 unspecifiedG01S13/00In the scheme2,018
G01S13/24Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier waveG01S13/00In the scheme2,018
G01S13/282Systems 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 waveG01S13/00In the scheme1,990
G01S13/751Systems 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 signalG01S13/00In the scheme1,951
G01S7/025Details 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 wavesG01S7/02In the scheme1,935
G01S2013/9327Sensor installation detailsG01S13/00In the scheme1,932
G01S7/22Producing cursor lines and indicia by electronic meansG01S7/02In the scheme1,924
G01S2013/9329Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles cooperating with reflectors or transpondersG01S13/00In the scheme1,903
G01S7/358Receivers using I/Q processingG01S7/02In the scheme1,876
G01S13/48Indirect determination of position data using multiple beams at emission or receptionG01S13/00In the scheme1,872
G01S13/913Radar or analogous systems specially adapted for specific applications for traffic control for landing purposesG01S13/00In the scheme1,847
G01S13/953Radar or analogous systems specially adapted for specific applications for meteorological use mounted on aircraftG01S13/00In the scheme1,839
G01S13/9027Pattern recognition for feature extractionG01S13/00In the scheme1,828
Match: Direct
The capability is itself a technology or a kind of physical system, and the classification names it. The crosswalk is a first pass that nobody has reviewed.

Other capabilities in Sensing, Timing & Navigation