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Apparatus and method for mitigating range-doppler ambiguities in pulse-doppler radars 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01S-013/526
  • G01S-013/53
  • G01S-013/538
  • G01S-013/95
출원번호 US-0268698 (1994-06-30)
발명자 / 주소
  • Rubin William L. (Whitestone NY)
출원인 / 주소
  • Unisys Corporation (Blue Bell PA 02)
인용정보 피인용 횟수 : 37  인용 특허 : 0

초록

A method and apparatus for resolving Doppler frequency shift ambiguities in pulse Doppler radar systems provides a radiated signal that is modulated with a periodic waveform having a plurality of pulses within a period, the interpulse intervals between pulses in the period being unequal. Radar targe

대표청구항

A Doppler radar of the type having a stabilized transmitter for transmitting pulse modulated signals and a receiver for receiving radar returned signals further comprising: waveform generator means coupled to said transmitter for providing a periodic modulating waveform, each period including a plur

이 특허를 인용한 특허 (37)

  1. Mauduit, Laurent; Sai, Bin; Delsard, Michel, Advanced antenna protection for radars in level gauging and other applications.
  2. Wicht, Fernand; Sai, Bin, Apparatus and method for automatic gauge reading in an inventory control and management system.
  3. Chebruch, Igor; Shakarjian, Daniel R.; Martin, Charles, Apparatus and method for detecting a fault with a clock source.
  4. Sai, Bin, Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications.
  5. Wicht, Fernand; Sai, Bin, Apparatus and method for monitoring tanks in an inventory management system.
  6. van Schie, Adrianus Leonardus David, Apparatus and method for product movement planning to support safety monitoring in inventory management systems.
  7. van Schie, Adrianus Leonardus David; Stolk, Jan Leendert, Apparatus and method for storage tank hatch monitoring in an inventory management system.
  8. Joosten, John; De Bruin, Paul, Apparatus and methods for automatically testing a servo gauge in an inventory management system.
  9. Pritt Mark D., Automatic correction of phase unwrapping errors.
  10. Joshua Michael Wurman ; Mitchell Alfred Randall ; Chris Dale Burghart, Bistatic radar system for centralized, near-real-time synchronized, processing of data to identify scatterers.
  11. Hiemenz, Robert E.; Thomas, Jr., Daniel D., Constant pulse repetition frequency techniques for eliminating second time around returns in pulsed doppler radar.
  12. Dusan S. Zrnic ; Sebastian Torres, Efficient estimation of spectral moments and the polarimetric variables on weather radars, sonars, sodars, acoustic flow meters, lidars, and similar active remote sensing instruments.
  13. Brookner,Eli, Efficient technique for estimating elevation angle when using a broad beam for search in a radar.
  14. Szajnowski,Wieslaw Jerzy, Generations of sequences of waveforms.
  15. Cirillo, Luke; Heuel, Steffen, Measuring device and measuring method for measuring the ambiguity function of radar signals.
  16. Sai, Bin; Sehrier, Ronald C., Method and apparatus for highly accurate higher frequency signal generation and related level gauge.
  17. Sai, Bin, Method and apparatus for real-time calibration of a liquid storage tank level gauge.
  18. Schrier, Ronald C.; Sai, Bin, Method and device for determining the level L of a liquid within a specified measuring range by means of radar signals transmitted to the liquid surface and radar signals reflected from the liquid surface.
  19. Sierwald, Jorn, Method and implementation for calculating speed distributions with multi-PRI and SMPRF radars.
  20. Karhunen, Pentti; Torres, Sebastian; Siggia, Alan; Passarelli, Richard, Method for extension of unambiguous range and velocity of a weather radar.
  21. Artis, Jean-Paul, Method for increasing the unambiguous distance in FSK radars.
  22. Sai, Bin, Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus.
  23. Brookner, Eli; Manoogian, David V.; Steudel, Fritz, Multiple radar combining for increased range, radar sensitivity and angle accuracy.
  24. Adams,Gregory F., Orthogonal pulse range ambiguity resolution.
  25. Steudel,Fritz, Process for phase-derived range measurements.
  26. Dedden, Gerrit, Radar apparatus.
  27. Minowa, Masahiro; Asada, Yasunobu, Radar device and velocity calculation method.
  28. Sai, Bin, Radar liquid level detection using stepped frequency pulses.
  29. Winkler, Volker, Radar methods and systems using ramp sequences.
  30. Lee, Robert W., Radar operation with enhanced doppler capability.
  31. Lee, Robert W., Radar operation with increased doppler capability.
  32. Joshua Michael Wurman ; Mitchell Alfred Randall, Radar system having multiple simultaneously transmitted beams operating in a scanning mode to identify scatterers.
  33. Gail William B., Reduction of radar antenna area.
  34. Zrnic Dusan S. ; Sachidananda Mangalore, Signal processing and systematic phase coding for mitigation of range and velocity ambiguities in Doppler weather radars.
  35. Milkovich Edward ; Gifford Ralph Elton, Signal processing architecture which improves sonar and pulse Doppler radar performance and tracking capability.
  36. Jin, Michael Yih-Hwa; Chang, Chi-Yung, System and method for resolving ambiguity in radar, lidar, and acoustic systems.
  37. Walker,Michael L.; Furuno,David S.; Askar,Naiel K.; Rogerson,Gerald D., Ultra-wideband radar system using sub-band coded pulses.
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