| |
 |
|
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:
| Patent Number |
Title Of Patent |
Date Issued |
| 6081221 |
Signal processing and systematic phase coding for mitigation of range and velocity ambiguities in Doppler weather radars |
Jun. 27, 2000 |
| 6072420 |
Ultra wide band coherent radar system optimising the radio interference discrimination capability |
Jun. 6, 2000 |
| 6067040 |
Low cost-high resolution radar for commercial and industrial applications |
May. 23, 2000 |
| 6064331 |
Pulse repetition frequency section method and system |
May. 16, 2000 |
| 6049302 |
Pulsed doppler radar system with small intermediate frequency filters |
Apr. 11, 2000 |
| 5963677 |
Pulse repetition interval correlator utilizing zero mean matched filtering and difference minimization correlation |
Oct. 5, 1999 |
| 5943004 |
Method for the transmission of radar transmitter pulses |
Aug. 24, 1999 |
| 5907301 |
Procedure and device for the control of a radar unit |
May. 25, 1999 |
| 5847677 |
Random number generator for jittered pulse repetition interval radar systems |
Dec. 8, 1998 |
| 5805110 |
Impulse radar with swept range gate |
Sep. 8, 1998 |
| 5796364 |
Method of determining the velocity of a radar target |
Aug. 18, 1998 |
| 5757320 |
Short range, ultra-wideband radar with high resolution swept range gate |
May. 26, 1998 |
| 5726657 |
Phase coherent radar system using fast frequency agile waveform synthesis |
Mar. 10, 1998 |
| 5708437 |
Radar apparatus |
Jan. 13, 1998 |
| 5657022 |
Unambiguous range-doppler processing method and system |
Aug. 12, 1997 |
| 5627545 |
Radar apparatus |
May. 6, 1997 |
| 5598165 |
Method for the control of a radar station |
Jan. 28, 1997 |
| 5543799 |
Swept range gate radar system for detection of nearby objects |
Aug. 6, 1996 |
| 5453932 |
Device and method for detecting and elimination of spurious ultrasonic ranging echoes |
Sep. 26, 1995 |
| 5442359 |
Apparatus and method for mitigating range-doppler ambiguities in pulse-doppler radars |
Aug. 15, 1995 |
| 5422646 |
High frequency MTI radar |
Jun. 6, 1995 |
| 5347283 |
Frequency agile radar |
Sep. 13, 1994 |
| 5150126 |
Transmitting and receiving part of a pulse doppler radar |
Sep. 22, 1992 |
| 5150125 |
High Doppler rate, high altitude capability coherent pulse Doppler radar altimeter |
Sep. 22, 1992 |
| 5115243 |
Radar system with active array antenna, beam multiplex control and pulse integration control responsive to azimuth angle |
May. 19, 1992 |
| 5115244 |
Radar system with active array antenna, elevation-responsive PRF control, and pulse integration control responsive to azimuth angle |
May. 19, 1992 |
| 5057845 |
Radar apparatus employing different kinds of pulses |
Oct. 15, 1991 |
| 5051749 |
Synthetic aperture radar assembly and a method of creating a radar image of a planet surface using such an assembly |
Sep. 24, 1991 |
| 4973968 |
Radar system for determining first time around targets from multiple time around targets |
Nov. 27, 1990 |
| 4954830 |
Range resolving method |
Sep. 4, 1990 |
| 4924231 |
Device for removing the ambiguity over range and speed, used more especially in combination with a doppler type radar receiver and a radar containing it |
May. 8, 1990 |
| 4894660 |
Range sidelobe reduction by aperiodic swept-frequency subpulses |
Jan. 16, 1990 |
| 4847622 |
Coherent pulse radars |
Jul. 11, 1989 |
| 4746922 |
Method of and device for removing range ambiguity in a pulse-doppler radar and radar including such a device |
May. 24, 1988 |
| 4730189 |
Pulse Doppler radar with variable pulse repetition frequency |
Mar. 8, 1988 |
| 4727375 |
Process for adapting the post integration in a switched pulse repetition frequency radar and a circuit implementing this process |
Feb. 23, 1988 |
| 4724418 |
Synthetic aperture radar focusing |
Feb. 9, 1988 |
| 4717917 |
Alien radar suppression circuit |
Jan. 5, 1988 |
| 4706088 |
Synthetic aperture radar focusing |
Nov. 10, 1987 |
| 4679050 |
Pulse radar apparatus |
Jul. 7, 1987 |
| 4642641 |
Variable PRF target tracking radar |
Feb. 10, 1987 |
| 4613862 |
Adaptive mutual interference suppression method |
Sep. 23, 1986 |
| 4602258 |
Process for removing distance measurement ambiguity and a radar using this process |
Jul. 22, 1986 |
| 4573050 |
Dual scan rate radar |
Feb. 25, 1986 |
| 4490720 |
Multipulse signal processing for radar system |
Dec. 25, 1984 |
| 4454511 |
Pulse Doppler radar with fixed target echo rejection circuit formed of recursion filters |
Jun. 12, 1984 |
| 4450445 |
Range rate dependent pulse control apparatus and method therefor |
May. 22, 1984 |
| 4338604 |
Pulsed coherent doppler radar with frequency agility |
Jul. 6, 1982 |
| 4303920 |
Radar systems |
Dec. 1, 1981 |
| 4275396 |
Helicopter rotating blade detection system |
Jun. 23, 1981 |
|
|
|
