IL86704A - Closed loop velocity/altitude sensor for fm/cw doppler radars - Google Patents
Closed loop velocity/altitude sensor for fm/cw doppler radarsInfo
- Publication number
- IL86704A IL86704A IL86704A IL8670488A IL86704A IL 86704 A IL86704 A IL 86704A IL 86704 A IL86704 A IL 86704A IL 8670488 A IL8670488 A IL 8670488A IL 86704 A IL86704 A IL 86704A
- Authority
- IL
- Israel
- Prior art keywords
- closed loop
- altitude sensor
- doppler radars
- loop velocity
- velocity
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/4056—Means for monitoring or calibrating by simulation of echoes specially adapted to FMCW
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/342—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sinusoidal modulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/882—Radar or analogous systems specially adapted for specific applications for altimeters
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/097,772 US4806935A (en) | 1987-09-17 | 1987-09-17 | Closed loop velocity/altitude sensor for FM-CW doppler radars |
Publications (1)
Publication Number | Publication Date |
---|---|
IL86704A true IL86704A (en) | 1991-12-15 |
Family
ID=22265055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL86704A IL86704A (en) | 1987-09-17 | 1988-06-10 | Closed loop velocity/altitude sensor for fm/cw doppler radars |
Country Status (7)
Country | Link |
---|---|
US (1) | US4806935A (xx) |
EP (1) | EP0395682B1 (xx) |
JP (1) | JP2584506B2 (xx) |
CA (1) | CA1290429C (xx) |
DE (1) | DE3850671T2 (xx) |
IL (1) | IL86704A (xx) |
WO (1) | WO1989002605A1 (xx) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3821216A1 (de) * | 1988-06-23 | 1989-12-28 | Telefunken Electronic Gmbh | Messsystem |
DE3830992A1 (de) * | 1988-09-12 | 1990-03-22 | Messerschmitt Boelkow Blohm | Radarhoehenmesser |
US5014063A (en) * | 1990-01-03 | 1991-05-07 | Canadian Marconi Company | Integrated altimeter and doppler velocity sensor arrangement |
US5047779A (en) * | 1990-08-28 | 1991-09-10 | Honeywell Inc. | Aircraft radar altimeter with multiple target tracking capability |
DE4128560A1 (de) * | 1991-08-28 | 1993-03-04 | Telefunken Systemtechnik | Verfahren zur bestimmung der geschwindigkeit eines sich bewegenden objektes mittels mindestens eines dopplerradarsensors und vorrichtung zum ausfuehren des verfahrens |
FR2741761B1 (fr) * | 1995-11-27 | 1998-02-13 | Centre Nat Etd Spatiales | Procede de reduction autonome des deuils d'acquisition et de poursuite des codes d'etalement de spectre recus en orbite |
US6008754A (en) * | 1996-08-15 | 1999-12-28 | Alliedsignal Inc. | On-ground radio altimeter calibration system |
US5861837A (en) * | 1997-03-19 | 1999-01-19 | Northrop Grumman Corporation | Poly-frequency CW doppler radar system with leakage cancellation and method |
US6008742A (en) * | 1997-05-21 | 1999-12-28 | Groves; Duane | Aircraft landing gear warning system |
US6950056B2 (en) * | 2002-05-13 | 2005-09-27 | Honeywell International Inc. | Methods and apparatus for determination of a filter center frequency |
US6753806B1 (en) * | 2003-06-11 | 2004-06-22 | Honeywell International Inc. | Methods and apparatus to compensate for zero Doppler returns |
US7057550B1 (en) | 2005-02-16 | 2006-06-06 | Applied Concepts, Inc. | System and method for calibrating a vehicular traffic surveillance Doppler radar |
US7038614B1 (en) | 2005-02-16 | 2006-05-02 | Applied Concepts, Inc. | Vehicular traffic surveillance Doppler radar system |
US7049999B1 (en) * | 2005-02-16 | 2006-05-23 | Applied Concepts, Inc. | Modulation circuit for a vehicular traffic surveillance Doppler radar system |
US7161530B2 (en) * | 2005-02-22 | 2007-01-09 | The United States Of America As Represented By The Secretary Of The Army | System and method for radar calibration using antenna leakage |
US7705773B2 (en) * | 2005-12-19 | 2010-04-27 | Honeywell International Inc. | Self-calibrating a radar altimeter based on a simulated return signal |
US7295151B2 (en) | 2005-12-19 | 2007-11-13 | Honeywell International Inc. | Systems and methods for self-test of a radar altimeter |
IL172864A0 (en) * | 2005-12-28 | 2007-02-11 | Camero Tech Ltd | Automatic delay calibration and tracking for ultrawideband antenna array |
US20110205121A1 (en) * | 2005-12-28 | 2011-08-25 | Camero-Tech Ltd. | Method of determining real time location of reflecting objects and system thereof |
US8044842B2 (en) | 2006-08-07 | 2011-10-25 | Honeywell International Inc. | High accuracy radar altimeter using automatic calibration |
CN100507599C (zh) * | 2006-11-10 | 2009-07-01 | 中国科学院空间科学与应用研究中心 | 一种海陆兼容的卫星雷达高度计跟踪器 |
US7474255B2 (en) * | 2006-12-05 | 2009-01-06 | Chung Shan Institute Of Science And Technology, Armaments Bureau, M.N.D. | Target tracking method of radar with frequency modulated continuous wave |
DE102008062438A1 (de) * | 2008-12-11 | 2010-06-24 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Doppler-Radarsensors und Doppler-Radarsensor |
GB2472623A (en) * | 2009-08-12 | 2011-02-16 | Thales Holdings Uk Plc | Continuous wave radar with frequency shift keying |
DE102011115309A1 (de) * | 2011-09-29 | 2013-04-04 | Infineon Technologies Ag | Radarschaltung, Radarsystem und Verfahren zum Testen einer Verbindung zwischen einer Radarschaltung und einer Radarantenne in einem Fahrzeug |
US9939524B2 (en) * | 2015-02-04 | 2018-04-10 | Honeywell International Inc. | Systems and methods for measuring velocity with a radar altimeter |
US10006991B2 (en) * | 2015-02-11 | 2018-06-26 | Honeywell International Inc. | Velocity and attitude estimation using an interferometric radar altimeter |
US10641885B2 (en) | 2017-07-21 | 2020-05-05 | Honeywell International Inc. | Systems and methods for measuring velocity and acceleration with a radar altimeter |
CN112083414B (zh) * | 2020-09-18 | 2023-11-14 | 上海无线电设备研究所 | 一种用于雷达高度计的双频探测方法及星载设备 |
US11592550B2 (en) | 2020-09-30 | 2023-02-28 | Rockwell Collins, Inc. | Low range altimeter active leakage cancellation |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3189899A (en) * | 1958-04-30 | 1965-06-15 | Raytheon Co | Continuous wave radar systems |
GB869808A (en) * | 1958-12-01 | 1961-06-07 | Marconi Wireless Telegraph Co | Improvements in or relating to radar systems |
GB1268634A (en) * | 1968-04-11 | 1972-03-29 | Thomas George Thorne | Improvements in or relating to radio distance measuring equipment |
DE1802654B2 (de) * | 1968-10-11 | 1971-10-14 | Verfahren zur kompensation des von verstaerkungsdifferenten herruehrenden peilfehlers bei mehrkanalpeilern | |
US3611370A (en) * | 1968-11-05 | 1971-10-05 | North American Rockwell | Dual-mode radar system |
FR2344031A1 (fr) * | 1976-03-12 | 1977-10-07 | Trt Telecom Radio Electr | Appareil a modulation de frequence destine a des mesures de distance de haute precision |
US4024540A (en) * | 1976-03-12 | 1977-05-17 | Cincinnati Electronics Corporation | Continuous wave FM tone ranging radar with predetection averaging |
US4041490A (en) * | 1976-06-25 | 1977-08-09 | Cubic Corporation | Measurement system calibrated to be insensitive to temperature variation induced changes in internal phase shifts present in the system |
US4176353A (en) * | 1976-12-06 | 1979-11-27 | Honeywell Inc. | Radar altimeter tracking circuit apparatus |
GB1592780A (en) * | 1976-12-21 | 1981-07-08 | Plessey Co Ltd | Frequency control systems |
US4107681A (en) * | 1977-05-26 | 1978-08-15 | Rockwell International Corporation | Method and apparatus for automatically adjusting the resolution of a radio altimeter over its operating altitude range |
FR2445535A1 (fr) * | 1978-12-26 | 1980-07-25 | Trt Telecom Radio Electr | Appareil de mesure de distance a emission continue modulee en frequence avec une linearite amelioree |
US4245221A (en) * | 1979-04-27 | 1981-01-13 | Rca Corporation | FM-CW Radar ranging system with automatic calibration |
US4241346A (en) * | 1979-07-11 | 1980-12-23 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Pulse radar altimeters |
US4357610A (en) * | 1980-09-29 | 1982-11-02 | Sperry Corporation | Waveform encoded altitude sensor |
US4427981A (en) * | 1981-09-28 | 1984-01-24 | The Bendix Corporation | Tracking filter for radio altimeter |
US4468638A (en) * | 1982-02-11 | 1984-08-28 | The Bendix Corporation | Linear sweep frequency modulator for FM/CW radio altimeter |
US4599618A (en) * | 1982-07-26 | 1986-07-08 | Rockwell International Corporation | Nearest return tracking in an FMCW system |
US4503401A (en) * | 1982-08-04 | 1985-03-05 | Allied Corporation | Wideband phase locked loop tracking oscillator for radio altimeter |
FR2541465B1 (fr) * | 1983-02-18 | 1985-10-11 | Thomson Csf | Radar a onde continue modulee en frequence et son application a une sonde altimetrique |
JPS6010271A (ja) * | 1983-06-29 | 1985-01-19 | Fuji Xerox Co Ltd | 複写機用原稿搬送装置 |
-
1987
- 1987-09-17 US US07/097,772 patent/US4806935A/en not_active Expired - Lifetime
-
1988
- 1988-05-10 CA CA000566380A patent/CA1290429C/en not_active Expired - Fee Related
- 1988-05-16 EP EP88909939A patent/EP0395682B1/en not_active Expired - Lifetime
- 1988-05-16 DE DE3850671T patent/DE3850671T2/de not_active Expired - Fee Related
- 1988-05-16 WO PCT/US1988/001670 patent/WO1989002605A1/en active IP Right Grant
- 1988-05-16 JP JP63509097A patent/JP2584506B2/ja not_active Expired - Fee Related
- 1988-06-10 IL IL86704A patent/IL86704A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4806935A (en) | 1989-02-21 |
EP0395682B1 (en) | 1994-07-13 |
JPH03501648A (ja) | 1991-04-11 |
EP0395682A1 (en) | 1990-11-07 |
CA1290429C (en) | 1991-10-08 |
JP2584506B2 (ja) | 1997-02-26 |
DE3850671T2 (de) | 1995-03-02 |
DE3850671D1 (de) | 1994-08-18 |
WO1989002605A1 (en) | 1989-03-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL86704A (en) | Closed loop velocity/altitude sensor for fm/cw doppler radars | |
AU2631384A (en) | Doppler radar velocity measurement | |
GB2054310B (en) | Doppler radar system for the classification of moving targets | |
GB2075788B (en) | Doppler radar | |
GB2042300B (en) | Short-range doppler radar system | |
GB2307809B (en) | Continous wave radar altimeter | |
GB2191647B (en) | Frequency-agile doppler radars | |
GB2122834B (en) | Vehicle mounted doppler radar system | |
EP0287979A3 (en) | Coherent radar altimeter system | |
GB2164815B (en) | Range limited coherent frequency doppler surveillance system | |
GB2056214B (en) | Doppler ground-speed radar for vehicles | |
GB2069281B (en) | Doppler radar system | |
NZ218353A (en) | Counting objects by doppler radar | |
GB2210752B (en) | Radar altimeter systems | |
GB2199459B (en) | Pulse doppler radar system | |
GB2101831B (en) | Doppler radar type speedometer | |
GB2092853B (en) | Radar doppler intruder detector | |
EP0443243A3 (en) | Pulse doppler radar system | |
DE3275018D1 (en) | Ground surveillance doppler radar | |
GB2304249B (en) | Continous wave radar altimeter | |
EP0140518A3 (en) | Radar velocity sensor | |
GB2203313B (en) | Radar surveillance of transponders | |
GB2191648B (en) | Pulse doppler radar | |
AU2790689A (en) | Closed loop velocity/altitude sensor for fm-cw doppler radars | |
GB2315941B (en) | Continuous wave radar altimeter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RH | Patent void |