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Class Information
Number: 342/203
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > With particular circuit > For pulse modulation > With noise reduction
Description: Subject matter including circuitry to distinguish between target echoes and noise pulses.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8643535 Radar device Feb. 4, 2014
8193974 Systems and methods for suppressing ambiguous peaks from stepped frequency techniques Jun. 5, 2012
8134495 Transmitter apparatus for transmitting RF pulse signal, transmitter/receiver apparatus incorporating the transmitter apparatus, and receiver apparatus for receiving RF pulse signal Mar. 13, 2012
7688257 Marine radar systems and methods Mar. 30, 2010
7679549 Waveform generation method, radar device, and oscillator for radar device Mar. 16, 2010
7548195 Waveform generation method, radar device, and oscillator for radar device Jun. 16, 2009
7460055 Radar apparatus Dec. 2, 2008
7365603 FET amplifier, pulse modulation module, and radar device Apr. 29, 2008
7304604 Radar sensor and method for operating a radar sensor Dec. 4, 2007
7218269 Method for enlarging the interference-free dynamic range of non-linear signal processing components May. 15, 2007
7212154 Apparatus for producing an amplified radio frequency pulse May. 1, 2007
7196658 Waveform generation method, waveform generation program, waveform generation circuit and radar device Mar. 27, 2007
7158077 Radar device and method for suppressing interference with a radar device Jan. 2, 2007
7151483 System and method for concurrent operation of multiple radar or active sonar systems on a common frequency Dec. 19, 2006
6943640 Current source modulator Sep. 13, 2005
6933878 Wide bandwidth radar Aug. 23, 2005
6798375 Radar device and a method for suppressing interference in a radar device Sep. 28, 2004
6714286 Agile pseudo-noise coded ranging ladar Mar. 30, 2004
6665055 Light-wave rangefinder using a pulse method Dec. 16, 2003
6630903 Programmable power regulator for medium to high power RF amplifiers with variable frequency applications Oct. 7, 2003
6502043 Process and device for reducing the spectral line noise inside an aircraft, especially a rotating-wing aircraft, in particular a helicopter Dec. 31, 2002
6392588 Multifrequency signal structure for radar systems May. 21, 2002
6281835 Radar transmitter Aug. 28, 2001
6226077 Self-calibrating precision timing circuit and method for a laser range finder May. 1, 2001
6081226 Multi-mode radar exciter Jun. 27, 2000
6057910 Self-calibrating precision timing circuit and method for a laser range finder May. 2, 2000
5920279 Procedure and system for the control of a number of radar units Jul. 6, 1999
5880821 Self-calibrating precision timing circuit and method for a laser range finder Mar. 9, 1999
5808580 Radar/sonar system concept for extended range-doppler coverage Sep. 15, 1998
5805107 Cost-effective method for determining a pulse response of a high-resolution, band-limited radar channel Sep. 8, 1998
5798729 Radar apparatus Aug. 25, 1998
5786788 Radar system and method for reducing range sidelobes Jul. 28, 1998
5777574 High resolution imaging radar linear frequency modulation bandwidth multiplier Jul. 7, 1998
5774089 Method to resolve ambiguities in a phase measurement Jun. 30, 1998
5646626 Method and apparatus for digital correlation in pseudorandom noise coded systems Jul. 8, 1997
5646627 Method and apparatus for controlling a biphase modulation to improve autocorrelation in pseudorandom noise coded systems Jul. 8, 1997
5644315 Doppler ratio detection radar with range CFAR Jul. 1, 1997
5612779 Automatic noise threshold determining circuit and method for a laser range finder Mar. 18, 1997
5594451 Processing method using an advanced radar waveform for simultaneous matched processing and range profiling of different size targets Jan. 14, 1997
5576713 Compensation circuit for improving modulation characteristic, and modulator and radar equipment using the same Nov. 19, 1996
5574464 High-speed switching device for monostatic impulse radar Nov. 12, 1996
5568150 Method and apparatus for hybrid analog-digital pulse compression Oct. 22, 1996
5559519 Method and system for the sequential adaptive deterministic calibration of active phased arrays Sep. 24, 1996
5530451 Repeater with low spurious time outputs Jun. 25, 1996
5497160 Method and apparatus for improved auto-correlation and range correlation in pseudo-random noise coded systems Mar. 5, 1996
5469174 Pulse transmitter for terminating reflected waves Nov. 21, 1995
5440311 Complementary-sequence pulse radar with matched filtering and Doppler tolerant sidelobe suppression preceding Doppler filtering Aug. 8, 1995
5422646 High frequency MTI radar Jun. 6, 1995
5376939 Dual-frequency, complementary-sequence pulse radar Dec. 27, 1994
5278567 Post detection integration method and apparatus for pulse compression radar utilizing surface acoustic wave (SAW) matched filters Jan. 11, 1994

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