ClassID:

172733

G01S13/582 - CPC Classification

Classification description:

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; Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems; Systems of measurement based on relative movement of target; 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

Recent Application in this class:
#1
20260147107
2026-05-28

METHOD AND APPARATUS FOR AUGMENTING SYNTHESIS DATA OF THREE-DIMENSIONAL POINT CLOUD RADIO DETECTION AND RANGING-RECEIVED DATA

#2
20260133310
2026-05-14

METHOD FOR OPERATING A SENSOR DEVICE

#3
20260110791
2026-04-23

Methods in Radar Receiver and Transmitter for Detecting Objects of Interest

#4
20260104483
2026-04-16

MEASUREMENTS FOR SENSING IN A WIRELESS NETWORK

#5
20260063763
2026-03-05

METHOD FOR TARGET DETECTION IN A DDM RADAR SENSOR

#6
20260003061
2026-01-01

BALANCED WIRELESS SENSING METHOD, COMMUNICATION NODE AND STORAGE MEDIUM

#7
20260003060
2026-01-01

METHODS AND DEVICES FOR RANGE-DOPPLER PROCESSING

#8
20260003033
2026-01-01

Operating method of a detection radar and associated detection radar

#9
20250314759
2025-10-09

RADAR APPARATUS

#10
20250291026
2025-09-18

METHOD FOR CONTROLLING A COHERENT COOPERATIVE RADAR SENSOR NETWORK

#11
20250283991
2025-09-11

Methods for Sensing Doppler Shifts

#12
20250281061
2025-09-11

MONITORING DEVICE AND METHOD FOR OPERATING A MONITORING DEVICE

#13
20250277886
2025-09-04

METHOD FOR TRAINING A MACHINE LEARNING MODEL FOR A RADAR DEVICE

#14
20250138175
2025-05-01

METHODS AND SYSTEMS FOR PROCESSING RADAR SIGNALS TO DETERMINE RELATIVE POSITION AND MOTION OF NEARBY OBJECTS

#15
20250118186
2025-04-10

ULTRA-WIDEBAND-BASED FALL DETECTION

#16
20250110235
2025-04-03

SYSTEM AND METHOD FOR AIRCRAFT ALTIMETRY AND TERRAIN PROFILING VIA FORWARD LOOKING ACTIVE ELECTRONICALLY SCANNED ARRAY (AESA) RADAR

#17
20250110205
2025-04-03

METHOD FOR CALCULATING GATING SCORES IN PULSE-DOPPLER RADAR SYSTEMS USING A FUSION OF POSITION, POWER, DETECTION SIZE AND AMBIGUOUS DOPPLER MEASUREMENT DATA

#18
20250102619
2025-03-27

APPARATUS, RADAR SYSTEM AND METHOD

#19
20250102274
2025-03-27

SIGHT

#20
20250082527
2025-03-13

MATTRESS DEGRADATION DETERMINATION USING RADAR

#21
20250052859
2025-02-13

Methods and Systems for Radar Reflection Filtering During Vehicle Navigation

#22
20250044441
2025-02-06

RADAR APPARATUS

#23
20240410979
2024-12-12

RADAR SYSTEM AND DATA PROCESSING METHOD FOR RADAR SYSTEM

#24
20240377241
2024-11-14

VIBROMETRY AND SOUND REPRODUCTION OF ACOUSTIC SOURCES ON MOVING PLATFORMS USING RADAR

#25
20240310479
2024-09-19

METHOD FOR OPERATING AN ULTRA WIDE-BAND DEVICE, ULTRA WIDE-BAND DEVICE, AND VEHICLE COMPRISING AN ULTRA WIDE-BAND DEVICE

#26
20240302494
2024-09-12

DATA PROCESSING METHOD FOR PROCESSING MATRICES IN RADAR APPLICATIONS

#27
20240288582
2024-08-29

METHOD AND SYSTEM FOR AUTOMATIC REAL-TIME ADAPTIVE SCANNING WITH OPTICAL RANGING SYSTEMS

#28
20240288568
2024-08-29

RADAR APPARATUS

#29
20240280667
2024-08-22

RADAR SIGNAL PROCESSING DEVICE, RADAR SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

#30
20240255631
2024-08-01

METHOD, APPARATUS AND COMPUTER PROGRAM FOR CLASSIFYING RADAR DATA FROM A SCENE, METHOD, APPARATUS AND COMPUTER PROGRAM FOR TRAINING ONE OR MORE NEURAL NETWORKS TO CLASSIFY RADAR DATA

#31
20240230879
2024-07-11

MULTI-STATIC RADAR DETECTION SYSTEM FOR A VEHICLE

#32
20240230840
2024-07-11

MIMO SENSOR, METHOD FOR DETERMINING DIRECTION-OF-ARRIVAL APPROXIMATION DEGREE, AND TARGET INFORMATION MATCHING METHOD

#33
20240201358
2024-06-20

Object range and velocity detection from varying radar pulse repetition times

#34
20240189167
2024-06-13

Patient support apparatus having a radar system

#35
20240176005
2024-05-30

METHOD FOR SOLVING RADAR AMBIGUITY AND OCCLUSION BASED ON ORTHOGONAL TWO-PHASE CODED SIGNAL

#36
20240159864
2024-05-16

UWB RADAR MEASUREMENT EVALUATION METHOD AND ARRANGEMENT

#37
20240134032
2024-04-25

MULTI-STATIC RADAR DETECTION SYSTEM FOR A VEHICLE

#38
20240134006
2024-04-25

MIMO SENSOR, METHOD FOR DETERMINING DIRECTION-OF-ARRIVAL APPROXIMATION DEGREE, AND TARGET INFORMATION MATCHING METHOD

#39
20240103152
2024-03-28

System and Methods for Vehicle Localization Using Infrastructure Sensing

#40
20240094378
2024-03-21

MODULAR SYSTEM FOR DETECTING, TRACKING, AND TRANSMITTING TO IDENTIFIED OBJECTS

#41
20240094375
2024-03-21

DETECTING, TRACKING, AND TRANSMITTING TO IDENTIFIED OBJECTS USING MODELS IN A MODULAR SYSTEM

#42
20240019567
2024-01-18

SERVER, OPERATING METHOD OF THE SAME, AND SYSTEM

#43
20240019565
2024-01-18

MOTION COMPENSATION FOR FAST TARGET DETECTION IN AUTOMOTIVE RADAR

#44
20240019538
2024-01-18

APPARATUS AND METHOD FOR REMOVING CLUTTER IN A RADAR SYSTEM

#45
20240019527
2024-01-18

METHOD AND APPARATUS THAT USES A TRANSMISSION FROM A SINGLE TRANSMITTER FOR RECEIVER POSITIONING

#46
20240012104
2024-01-11

RADAR DEVICE

#47
20230393260
2023-12-07

Long signal integration of multiple velocity hypotheses

#48
20230375693
2023-11-23

DETECTING, TRACKING, AND TRANSMITTING TO IDENTIFIED OBJECTS USING MODELS IN A MODULAR SYSTEM

#49
20230324532
2023-10-12

Bi-static or multi-static radar system for aerial surveillance with spatial illumination

#50
20230228844
2023-07-20

REAL-TIME THZ SENSING USING TRUE TIME DELAY

#51
20230204763
2023-06-29

RADAR MEASUREMENT COMPENSATION TECHNIQUES

#52
20230204753
2023-06-29

Method, System and Apparatus for Generating an Optimal Signal in Radar and Communication Systems

#53
20230184923
2023-06-15

ENHANCED DOPPLER RADAR SYSTEMS AND METHODS

#54
20230168358
2023-06-01

Method of determining the yaw rate of a target vehicle

#55
20230144558
2023-05-11

DISTRIBUTED RADAR SYSTEM AND METHOD OF OPERATION THEREOF

#56
20230141843
2023-05-11

METHOD, SYSTEM, DEVICE AND STORAGE MEDIUM FOR NON-CONTACT VELOCITY ESTIMATION OF A MOVING TARGET

#57
20230132850
2023-05-04

SENSING MEASUREMENT INFORMATION EXCHANGE APPARATUS

#58
20230115439
2023-04-13

TUNED MEDICAL ULTRASOUND IMAGING

#59
20230059452
2023-02-23

Angle-Doppler Keystone formatting for airborne look-down radar system

#60
20230017983
2023-01-19

Methods and systems for radar reflection filtering during vehicle navigation

#61
20230008015
2023-01-12

SENSOR FUSION ARCHITECTURE FOR LOW-LATENCY ACCURATE ROAD USER DETECTION

#62
20220390583
2022-12-08

Method for low-interference operation of a plurality of radar sensors

#63
20220365206
2022-11-17

Vibrometry and sound reproduction of acoustic sources on moving platforms using radar

#64
20220365171
2022-11-17

Maritime surveillance radar

#65
20220349991
2022-11-03

Devoid clutter capture and filling (deccaf) to compensate for intra-CPI spectral notch variation

#66
20220334247
2022-10-20

Smart-device-based radar system for vehicle operations

#67
20220326383
2022-10-13

Method and system for automatic real-time adaptive scanning with optical ranging systems

#68
20220283286
2022-09-08

Method and system for time division multiplexing MIMO radar doppler compensation using spurious angle spectrum hypothesis tests

#69
20220276371
2022-09-01

DELAY DEVICE AND METHOD OF EMULATING RADAR SIGNAL PROPAGATION DELAYS

#70
20220260709
2022-08-18

POWER SAVING FOR DIGITAL RADAR

#71
20220260699
2022-08-18

Slow-time modulation for multiple radar channels

#72
20220221570
2022-07-14

VELOCITY AMBIGUITY RESOLVING METHOD AND ECHO SIGNAL PROCESSING APPARATUS

#73
20220196823
2022-06-23

Phase doppler radar

#74
20220187440
2022-06-16

Radar apparatus

#75
20220171049
2022-06-02

Co-prime coded (CPC) doppler division multiplexing (DDM) MIMO radar method and system

#76
20220163655
2022-05-26

RECEIVER PROCESSING CIRCUITRY FOR MOTION DETECTION AND RELATED SYSTEMS, METHODS, AND APPARATUSES

#77
20220163624
2022-05-26

Systems and methods for phase-modulated radar detection

#78
20220148451
2022-05-12

Method for computer-implemented simulation of radar raw data

#79
20220133562
2022-05-05

Patient support apparatus having a radar system

#80
20220120889
2022-04-21

SYSTEMS AND METHODS TO USE RADAR IN RFID SYSTEMS

#81
20220066015
2022-03-03

Radar odometry system and method

#82
20220026557
2022-01-27

Spatial sensor system with background scene subtraction

#83
20210318424
2021-10-14

Radar detection of moving object with waveform separation residual

#84
20210286064
2021-09-16

Radar excitation signals for wireless communications system

#85
20210278521
2021-09-09

RADAR GOLAY CODES FOR REDUCTION OF RANGE SIDELOBES AND INTERFERENCE

#86
20210215816
2021-07-15

Radar systems and methods

#87
20210215792
2021-07-15

Adaptive correction of radar channel-to-channel time-dependent errors

#88
20210199760
2021-07-01

Mitigating multipath effect on radars for effective target detection

#89
20210190906
2021-06-24

Systems and methods for phase-modulated radar detection

#90
20210165089
2021-06-03

Doppler radar based bee hive activity monitoring system

#91
20210156990
2021-05-27

Multimodal sensing, fusion for machine perception

#92
20210156979
2021-05-27

Reduced complexity FFT-based correlation for automotive radar

#93
20210141076
2021-05-13

Radar head pose localization

#94
20210132187
2021-05-06

Processing method for coherent MIMO radar using DDMA waveforms

#95
20210124011
2021-04-29

Robust radar-centric perception system

#96
20210072375
2021-03-11

Low-power radar

#97
20210063561
2021-03-04

RADAR DEVICE AND SIGNAL PROCESSOR

#98
20210055413
2021-02-25

Method and device for operating multiple sensors of a vehicle

#99
20210007921
2021-01-14

Patient support system control using radar

#100
20200333451
2020-10-22

Method and apparatus for performing object detection by using detection threshold values derived from adding different offset values to reference threshold values

#101
20200319300
2020-10-08

Method to determine the suitability of a radar target as a positional landmark

#102
20200292690
2020-09-17

Angular velocity sensing using arrays of antennas

#103
20200241125
2020-07-30

Method, apparatus and device for determining a velocity of an object in a time switched MIMO radar system

#104
20200200889
2020-06-25

Doppler ambiguity resolution via high order phase terms

#105
20200191940
2020-06-18

Extended doppler PMCW code division MIMO radar

#106
20200191939
2020-06-18

Extended doppler FMCW code division MIMO radar

#107
20200188756
2020-06-18

System and method for improving a basketball player's shooting by facilitating creation and revision of a customized basketball practice arrangement

#108
20200182991
2020-06-11

Ambiguity resolution for a MIMO radar system

#109
20200103517
2020-04-02

Method and apparatus for determining object state

#110
20200096595
2020-03-26

Radar apparatus and target determination method

#111
20200049810
2020-02-13

Range and direction of arrival migration with doppler ambiguity estimation

#112
20200018821
2020-01-16

Object sensing apparatus, object sensing method, and computer readable recording medium

#113
20190383926
2019-12-19

Method and system for automatic real-time adaptive scanning with optical ranging systems

#114
20190377062
2019-12-12

Resolving doppler ambiguity in multi-input multi-output radar using digital multiple pulse repetition frequencies

#115
20190353751
2019-11-21

Vehicle radar system and method of calibrating the same

#116
20190346548
2019-11-14

FILTERING TO ADDRESS RANGE WALK EFFECT IN RANGE-DOPPLER MAP

#117
20190339376
2019-11-07

DIFFERENTIAL PHASE-BASED DETECTOR

#118
20190310360
2019-10-10

Use of dual processing channels for stationary and moving objects illuminated by radar

#119
20190257937
2019-08-22

Systems and methods to use radar in RFID systems

#120
20190250249
2019-08-15

Vehicle radar system that addresses doppler frequency shift and method of using the same

#121
20190227157
2019-07-25

Distributed clutter motion suppression through multiple moving transmit phase centers

#122
20190227143
2019-07-25

Pulsed radar system using optimized transmit and filter waveforms

#123
20190170858
2019-06-06

Adaptive correction of radar channel-to-channel time-dependent errors

#124
20190142289
2019-05-16

Robust real-time heart rate monitoring method based on heartbeat harmonics using small-scale radar

#125
20190137604
2019-05-09

Target identification and clutter mitigation in high resolution radar systems

#126
20190120954
2019-04-25

ANGLE AND POSITION SENSING USING ARRAYS OF ANTENNAS

#127
20190094351
2019-03-28

Suppressing cyclically time-varying radar signatures

#128
20190086531
2019-03-21

Frequency profiles for non-contact range measurement with multi-scale analysis

#129
20190079180
2019-03-14

Single scatterer test using amplitude and a plurality of receive elements

#130
20190072640
2019-03-07

Signal processing system and signal processing method for object detection or data transmission

#131
20190064336
2019-02-28

Radar apparatus

#132
20190033442
2019-01-31

Broadside detection system and techniques for use in a vehicular radar

#133
20190025404
2019-01-24

Apparatus and method for detecting and correcting for blockage of an automotive radar sensor

#134
20190018128
2019-01-17

Methods and apparatus for distributed, multi-node, low-frequency radar systems for degraded visual environments

#135
20190015277
2019-01-17

Patient immersion sensor using radar

#136
20190011548
2019-01-10

Radar systems and methods utilizing composite waveforms for customization of resolution requirements

#137
20190011547
2019-01-10

SYSTEMS AND METHODS FOR RESOLVING VELOCITY AMBIGUITY IN AN AUTOMOTIVE RADAR SYSTEM

#138
20180356517
2018-12-13

Method of determining the yaw rate of a target vehicle

#139
20180356498
2018-12-13

Method of determining the de-aliased range rate of a target

#140
20180348343
2018-12-06

Intelligent metamaterial radar for target identification

#141
20180345922
2018-12-06

Automatic braking system for slow moving objects

#142
20180329050
2018-11-15

Power management using a low-power radar

#143
20180329049
2018-11-15

Low-power radar

#144
20180267130
2018-09-20

Estimating a source location of a projectile

#145
20180231652
2018-08-16

Reduced complexity FFT-based correlation for automotive radar

#146
20180210075
2018-07-26

Angular velocity sensing using arrays of antennas

#147
20180172816
2018-06-21

Signal processing apparatus of a continuous-wave (CW) radar sensing system

#148
20180164406
2018-06-14

Probabilistic signal, detection, and track processing architecture and system

#149
20180128917
2018-05-10

Object detection in multiple radars

#150
20180128916
2018-05-10

OBJECT DETECTION IN MULTIPLE RADARS

#151
20180106889
2018-04-19

SYSTEM AND METHOD FOR RADAR BASED THREAT DETERMINATION AND CLASSIFICATION

#152
20180096475
2018-04-05

Vehicle occupant head positioning system

#153
20180088229
2018-03-29

Method, system and device for radar based high resolution object detection

#154
20180081052
2018-03-22

Radar signal processing device

#155
20180074181
2018-03-15

Radar device

#156
20180067193
2018-03-08

Synthesized profile

#157
20180045810
2018-02-15

METHOD AND DEVICE FOR PROCESSING RADAR SIGNALS

#158
20180003802
2018-01-04

High range resolution radar profiling using frequency jump burst-pulse doppler waveform and processing

#159
20170350971
2017-12-07

Systems and methods for using velocity measurements to adjust doppler filter bandwidth

#160
20170322300
2017-11-09

Radar apparatus

#161
20170299709
2017-10-19

Constant pulse repetition frequency techniques for eliminating second time around returns in pulsed doppler radar

#162
20170254893
2017-09-07

System and method for estimating number and range of a plurality of moving targets

#163
20170212232
2017-07-27

Radar apparatus and method of tracking target object

#164
20170212231
2017-07-27

Radar device

#165
20170192091
2017-07-06

SYSTEM AND METHOD FOR AUGMENTED REALITY REDUCED VISIBILITY NAVIGATION

#166
20170074973
2017-03-16

Coherent integration of fill pulses in pulse doppler type sensors

#167
20170067990
2017-03-09

Reverse-ephemeris method for determining position, attitude, and time

#168
20170059695
2017-03-02

Apparatus and method for detecting and correcting for blockage of an automotive radar sensor

#169
20170029107
2017-02-02

Wireless control of unmanned aerial vehicle with distance ranging and channel sensing

#170
20160363662
2016-12-15

Systems and methods to use radar in RFID systems

#171
20160341821
2016-11-24

Methods and apparatus utilizing digital signal processing of ultra wide band radar signals for living object detection in wireless power transfer applications

#172
20160320471
2016-11-03

Apparatus and method for detecting and correcting for blockage of an automotive radar sensor

#173
20160299222
2016-10-13

RADAR DEVICE AND DISTANCE AND SPEED MEASUREMENT METHOD

#174
20160284213
2016-09-29

Radar apparatus and running vehicle sensing method

#175
20160266238
2016-09-15

Signal processing unit and method for searching for peaks in a two-dimensional matrix

#176
20160223665
2016-08-04

Systems and methods for measuring velocity with a radar altimeter

#177
20160215763
2016-07-28

Wind turbine blade vibration detection and radar calibration

#178
20160166907
2016-06-16

System and method for improving a basketball player's shooting including a tracking and control system for tracking, controlling and reporting statistics

#179
20160131752
2016-05-12

MIMO radar system

#180
20160124086
2016-05-05

Radar ambiguity resolving detector

#181
20160061937
2016-03-03

Constant pulse repetition frequency techniques for eliminating second time around returns in pulsed doppler radar

#182
20160011300
2016-01-14

Radar operation with enhanced doppler capability

#183
20150378007
2015-12-31

Methods and systems for improving signal to phase noise in radars

#184
20150331086
2015-11-19

Radar system with improved multi-target discrimination

#185
20150309170
2015-10-29

Radar apparatus with harmonic attenuator

#186
20150309167
2015-10-29

Radar apparatus and object detecting method

#187
20150247929
2015-09-03

Positioning system and method

#188
20150247924
2015-09-03

Radar apparatus

#189
20150226847
2015-08-13

Controlling a radar system and the provision of a range-doppler target image signature

#190
20150212195
2015-07-30

Method and apparatus for determining spread sequence for generating spread spectrum radar signal

#191
20150198697
2015-07-16

Radar apparatus

#192
20150159632
2015-06-11

Wind turbine blade vibration detection and radar calibration

#193
20150091749
2015-04-02

Method for determining at least one parameter for the purpose of correlating two objects

#194
20150084806
2015-03-26

Method and device for determining distance and radial velocity of an object by means of radar signal

#195
20150077284
2015-03-19

Estimating a source location of a projectile

#196
20140285371
2014-09-25

Bistatic inverse synthetic aperture radar imaging

#197
20140176361
2014-06-26

Identification and removal of a false detection in a radar system

#198
20140062760
2014-03-06

Signal processing device, radar apparatus, target object method

#199
20140035776
2014-02-06

Method and system for target detection

#200
20140022118
2014-01-23

Standoff range sense through obstruction radar system

#201
20140002294
2014-01-02

Range determination apparatus and method

#202
20130342386
2013-12-26

Radar device and method of processing reflection signal

#203
20130278455
2013-10-24

Efficient pulse Doppler radar with no blind ranges, range ambiguities, blind speeds, or Doppler ambiguities

#204
20130214918
2013-08-22

Method and device for detecting objects

#205
20130194128
2013-08-01

Floodlight radar system for detecting and locating moving targets in three dimensions

#206
20130187806
2013-07-25

Device and method for selecting signal, and radar apparatus

#207
20130169470
2013-07-04

Radar system and methods of controlling a radar system and the provision of a range-doppler target image signature

#208
20130135140
2013-05-30

Radar device

#209
20130127655
2013-05-23

Radar device

#210
20130093616
2013-04-18

Radar sensor and method of detecting object using the same

#211
20130088380
2013-04-11

Radar device

#212
20130057427
2013-03-07

Driver assistance device for a vehicle and method for operating a radar device

#213
20120306684
2012-12-06

RADAR EQUIPMENT AND RECEIVED DATA PROCESSING METHOD

#214
20120268308
2012-10-25

Systems and methods to use radar in RFID systems

#215
20120256780
2012-10-11

RADAR EQUIPMENT AND RECEIVED DATA PROCESSING METHOD

#216
20120242530
2012-09-27

Method for unambiguously determining a range and/or a relative speed of an object, driver assistance device and motor vehicle

#217
20120194377
2012-08-02

ANTENNA APPARATUS, RADAR APPARATUS AND ON-VEHICLE RADAR SYSTEM

#218
20120105270
2012-05-03

Observation signal processing apparatus

#219
20110279305
2011-11-17

Method for estimating the position and the speed of a target with a radar emitting an OFDM waveform

#220
20110241931
2011-10-06

Iterative clutter calibration with phased array antennas

#221
20110215962
2011-09-08

Interleaved beam coherent radar apparatus and processing method

#222
20110193738
2011-08-11

Radar for aerial target detection fitted to an aircraft notably for the avoidance of obstacles in flight

#223
20110156945
2011-06-30

Observation signal processing apparatus

#224
20110122014
2011-05-26

Object detection with multiple frequency chirps

#225
20110102250
2011-05-05

Sensitivity enhancement system

#226
20110102249
2011-05-05

Resolution enhancement system (RES) for networked radars

#227
20110102234
2011-05-05

STANDOFF RANGE SENSE THROUGH OBSTRUCTION RADAR SYSTEM

#228
20110095939
2011-04-28

PROCESS AND SYSTEM FOR DETERMINING THE POSITION AND VELOCITY OF AN OBJECT

#229
20100315284
2010-12-16

Method and apparatus for coherent marine radar measurements of properties of ocean waves and currents

#230
20100289690
2010-11-18

Radar device

#231
20100079330
2010-04-01

Networked waveform system

#232
20100026565
2010-02-04

Method for generating a representation of an atmospheric vortex kinematic structure

#233
20090284407
2009-11-19

Pulse doppler radar device

#234
20090237292
2009-09-24

Method for measuring the radial velocity of a target with a doppler radar

#235
20090109084
2009-04-30

Target detection device and its detection method

#236
20090085800
2009-04-02

Radar system and method of digital beamforming

#237
20090085582
2009-04-02

Microwave determination of location and speed of an object inside a pipe

#238
20090031493
2009-02-05

Water discharge system

#239
20080211714
2008-09-04

Method of measuring the speed of air by doppler radar

#240
20080158061
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