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Class Information
Number: 342/137
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > With pulse modulation > With variable pulse repetition frequency (prf) or pulse width
Description: Subject matter including changing the rate of the pulse transmission or the width of the pulse transmissions from the radar source.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7605744 Method for extension of unambiguous range and velocity of a weather radar Oct. 20, 2009
7576683 Methods and systems for reducing interference caused by antenna leakage signals Aug. 18, 2009
7518547 Method and system of interference detection for radar altimeters Apr. 14, 2009
7466261 Method and system for radio detection and ranging intrusion detection system Dec. 16, 2008
7420504 Method of operating a multibeam radar Sep. 2, 2008
7327305 Process for the evaluation of signals in an SAR/MTI pulsed radar system Feb. 5, 2008
7304604 Radar sensor and method for operating a radar sensor Dec. 4, 2007
7245252 Method for determining the distance between two transmitting and receiving stations Jul. 17, 2007
7236120 Ultra-wideband detector systems for detecting moisture in building walls Jun. 26, 2007
7233279 Method and device for distance measurement by pulse radar Jun. 19, 2007
7215278 Radar frequency hopping May. 8, 2007
7199752 Phased null radar Apr. 3, 2007
7199747 Generating a fine time offset using a SiGe pulse generator Apr. 3, 2007
7167125 Pulse radar arrangement Jan. 23, 2007
7158077 Radar device and method for suppressing interference with a radar device Jan. 2, 2007
7151481 Method for detecting targets and determining their distance via an HPRF radar system Dec. 19, 2006
7136014 System and method for estimating the azimuth pointing angle of a moving monopulse antenna Nov. 14, 2006
7136013 Radio-wave radar system and adaptive cruise control system Nov. 14, 2006
7126526 Phased null radar Oct. 24, 2006
7109916 Device for, in particular bistatic radar applications Sep. 19, 2006
7095363 Pulse radar apparatus Aug. 22, 2006
7081850 Coherent detection of ultra wideband waveforms Jul. 25, 2006
7064704 Apparatus for radar Jun. 20, 2006
7053814 RF lightwave coding system for radar pulse compression May. 30, 2006
7053818 Method for simple and multipurpose tracking May. 30, 2006
7019683 Shipping container security system Mar. 28, 2006
6989781 Short-range radar system with variable pulse duration Jan. 24, 2006
6975264 Signal separating system Dec. 13, 2005
6956522 Pulse radar system Oct. 18, 2005
6940449 Method for eliminating dummy objects short-range pulse radar sensors Sep. 6, 2005
6861974 Clutter normalization by adaptation of transmit waveform Mar. 1, 2005
6850552 Iterative precision spectrum analysis Feb. 1, 2005
6844842 Method for pulse width modulation of a radar system Jan. 18, 2005
6771205 Shipboard point defense system and elements therefor Aug. 3, 2004
6753802 Null filter Jun. 22, 2004
6720909 Radar apparatus Apr. 13, 2004
6646587 Doppler radar apparatus Nov. 11, 2003
6639546 Radar system in which range ambiguity and range eclipsing are reduced by frequency diversity and alternation of pulse periodicity Oct. 28, 2003
6621450 Method of selecting a pulse repetition frequency to detect, track or search for a target Sep. 16, 2003
6614388 Sensor array having a pulse echo radar Sep. 2, 2003
6509864 Distance measuring device and method for calibrating a distance measuring device Jan. 21, 2003
6480142 Method and apparatus for measuring velocity and turbulence of atmospheric flows Nov. 12, 2002
6476758 Flexible digital ranging system and method Nov. 5, 2002
6446005 Magnetic wheel sensor for vehicle navigation system Sep. 3, 2002
6373427 Radar distance measuring device Apr. 16, 2002
6326917 Scanner-control device Dec. 4, 2001
6232912 Method for detecting a target by means of a high pulse repetition frequency radar system May. 15, 2001
6232913 Method and system for measuring radar reflectivity and doppler shift by means of a pulse radar May. 15, 2001
6225943 Method of operating pulse radar May. 1, 2001
6111537 Method for reducing false target echo indications Aug. 29, 2000

1 2 3


 
 
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