ClassID:

172290

G01S3/32 - CPC Classification

Classification description:

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; Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived from different combinations of signals from separate antennas, e.g. comparing sum with difference

Sub-classes:
Recent Application in this class:
#1
20260126512
2026-05-07

ANTENNA SYSTEMS AND METHODS FOR TRACKING NON-GEOSYNCHRONOUS SATELLITES

#2
20230179296
2023-06-08

ANTENNA SYSTEMS AND METHODS FOR TRACKING NON-GEOSYNCHRONOUS SATELLITES

#3
20220065975
2022-03-03

Geolocation of an electromagnetic emitter utilizing receptor pattern slope

#4
20210382132
2021-12-09

Method and apparatus for estimating direction of arrival using generation of virtual received signals

#5
20210041552
2021-02-11

Estimating angle measurements for source tracking using a phased array system

#6
20200018811
2020-01-16

Measuring device and measuring method for emulating an angle of departure determining test signal

#7
20190212411
2019-07-11

Method and apparatus for estimating direction of arrival using generation of virtual received signals

#8
20180357910
2018-12-13

Automated landing solution systems and methods

#9
20180348357
2018-12-06

Estimating angle measurements for source tracking using a phased array system

#10
20180348328
2018-12-06

Angle of arrival estimation in a radio communications network

#11
20180323834
2018-11-08

Methods for performing antenna beam scanning

#12
20180123238
2018-05-03

Multipolarized vector sensor array antenna system for search and rescue applications

#13
20180088201
2018-03-29

RADIO-WAVE ARRIVAL-DIRECTION ESTIMATION DEVICE AND RADIO-WAVE ARRIVAL-DIRECTION ESTIMATION METHOD

#14
20180048406
2018-02-15

Radio analysis apparatus and method

#15
20180038934
2018-02-08

DISCRIMINATION OF SIGNAL ANGLE OF ARRIVAL USING AT LEAST TWO ANTENNAS

#16
20180019524
2018-01-18

Antenna device and antenna excitation method

#17
20170371031
2017-12-28

Method for measuring a direction of incidence of an incident wave for an instantaneous wideband receiver and associated receiver

#18
20170256855
2017-09-07

Correlated fanbeam extruder

#19
20170102445
2017-04-13

Signal direction processing for an antenna array

#20
20170059684
2017-03-02

Space time interleaved matched-filters

#21
20170016974
2017-01-19

Waveguide structure for use in direction-of-arrival determination system and associated determination method

#22
20150077286
2015-03-19

Elevation monopulse antenna synthesis for azimuth connected phase array antennas and method

#23
20140197928
2014-07-17

System for and method of locating radio frequency identification (RFID) tags associated with items in a controlled area

#24
20140132451
2014-05-15

Maximum likelihood angle estimation of wideband signals using phased array antennas

#25
20120268325
2012-10-25

Maximum likelihood angle estimation of wideband signals using phased array antennas

#26
20110304507
2011-12-15

Compact single-aperture antenna and direction-finding navigation system

#27
20110050487
2011-03-03

Systems and methods for tracking a remote source and orientation control

#28
20100283664
2010-11-11

Selective-sampling receiver

#29
20100066597
2010-03-18

All-digital line-of-sight (LOS) processor architecture

#30
20100007555
2010-01-14

Radio-based direction-finding navigation system using small antenna

#31
20090213964
2009-08-27

Radio detection device and method

#32
20080303714
2008-12-11

Compact single-aperture antenna and navigation system

#33
20080303711
2008-12-11

Radar apparatus

#34
20070293150
2007-12-20

Compact antenna system for polarization sensitive null steering and direction-finding

#35
20070216569
2007-09-20

ELEVATION ESTIMATION METHOD AND RADAR APPARATUS USING IT

#36
20060044147
2006-03-02

Angle of position object location system and method

#37
20060017604
2006-01-26

Selective-sampling receiver

#38
20050156780
2005-07-21

Methods and apparatus for automotive radar sensors

#39
20050062640
2005-03-24

Vehicle positioning and tracking radar system

#40
16384971
2019-11-05

Method for determining the instantaneous polarization of propagating electromagnetic waves

#41
15688932
2018-06-19

Method for establishing direction of arrival by use of signals of opportunity

#42
15631733
2018-06-05

Estimating angle measurements for source tracking using a phased array system

#43
13527383
2017-05-16

Phase difference of arrival geolocation