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Class Information
Number: 342/194
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > With particular circuit > Complex signal (in phase and quadrature)
Description: Subject matter including receiver circuit means to separate returned radar signals into "in phase" and quadrature" components.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
6727842 Digital IF processor Apr. 27, 2004
6720910 Pri-staggered post-doppler adaptive monopulse processing for detection and location of a moving target in ground clutter Apr. 13, 2004
6720908 Sensor front-end for range and bearing measurement Apr. 13, 2004
6703966 Method and device for measuring the speed of a moving object Mar. 9, 2004
6683561 Radar systems Jan. 27, 2004
6680691 Methods and apparatus for accurate phase detection Jan. 20, 2004
6677892 Process for the phase amplitude demodulation of a received radar signal and device implementing such a process Jan. 13, 2004
6677885 Method for mitigating atmospheric propagation error in multiple pass interferometric synthetic aperture radar Jan. 13, 2004
6674396 System and method for distance measurement by inphase and quadrature signals in a radio system Jan. 6, 2004
6674390 Shipboard point defense system and elements therefor Jan. 6, 2004
6664914 Ground penetrating radar Dec. 16, 2003
6646591 Doppler complex FFT police radar with direction sensing capability Nov. 11, 2003
6642882 Mixer, radar module, and communication apparatus incorporating the same Nov. 4, 2003
6639543 Sensor front-end for vehicle closing velocity sensor Oct. 28, 2003
6639547 System for functional testing in a continuous-wave radar Oct. 28, 2003
6633252 Radar plow drillstring steering Oct. 14, 2003
6630902 Shipboard point defense system and elements therefor Oct. 7, 2003
6624780 False target radar image generator for countering wideband imaging radars Sep. 23, 2003
6614390 Method for generating and analyzing radar pulses as well as a radar sensor Sep. 2, 2003
6614389 Vehicle-onboard signal processing device and vehicle-onboard radar system Sep. 2, 2003
6608585 High-definition imaging apparatus and method Aug. 19, 2003
6608586 Method for removing RFI from SAR images Aug. 19, 2003
6597304 System and method for coherent array aberration sensing Jul. 22, 2003
6583754 Fast fourier transform signal processing method for doppler radar speed sensor Jun. 24, 2003
6570525 Method and device for the encoding and decoding of power distribution at the outputs of a system May. 27, 2003
6563455 Universal two-channel STAP filter May. 13, 2003
6549158 Shipboard point defense system and elements therefor Apr. 15, 2003
6525686 Receiving/transmitting apparatus and radar equipment Feb. 25, 2003
6522285 Ground-penetrating imaging and detecting radar Feb. 18, 2003
6522290 Transmit phase removal in FM homodyne radars Feb. 18, 2003
6501414 Method for locating a concealed object Dec. 31, 2002
6492933 SSB pulse Doppler sensor and active reflector system Dec. 10, 2002
6480139 Jammer counting using cholesky factor diagonal elements Nov. 12, 2002
6473025 Landmine locating system Oct. 29, 2002
6469661 Correction of I/Q channel errors without calibration Oct. 22, 2002
6420992 On board jammer Jul. 16, 2002
6411253 Equalization system using general purpose filter architecture Jun. 25, 2002
6404379 Matrix monopulse ratio radar processor for two target azimuth and elevation angle determination Jun. 11, 2002
6388604 Circuit for LPI signal detection and suppression of conventional pulsed signals May. 14, 2002
6384766 Method to generate a three-dimensional image of a ground area using a SAR radar May. 7, 2002
6369746 Simultaneous nulling in low sidelobe sum and difference antenna beam patterns Apr. 9, 2002
6362775 Precision all-weather target location system Mar. 26, 2002
6297764 Radar receiver having matched filter processing Oct. 2, 2001
6295019 System and method for distance measurement by inphase and quadrature signals in a radio system Sep. 25, 2001
6292128 Time domain detection and clockless logic electronic warfare receiver Sep. 18, 2001
6282231 Strong signal cancellation to enhance processing of weak spread spectrum signal Aug. 28, 2001
6268821 Multiple band sidelobe canceller Jul. 31, 2001
6255987 Block adaptive quantization Jul. 3, 2001
6243036 Signal processing for object detection system Jun. 5, 2001
6232913 Method and system for measuring radar reflectivity and doppler shift by means of a pulse radar May. 15, 2001

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