FR2446488A1 - Dispositif radar a modulation de frequence pour la mesure simultanee de la distance et de la vitesse relative - Google Patents
Dispositif radar a modulation de frequence pour la mesure simultanee de la distance et de la vitesse relativeInfo
- Publication number
- FR2446488A1 FR2446488A1 FR8000287A FR8000287A FR2446488A1 FR 2446488 A1 FR2446488 A1 FR 2446488A1 FR 8000287 A FR8000287 A FR 8000287A FR 8000287 A FR8000287 A FR 8000287A FR 2446488 A1 FR2446488 A1 FR 2446488A1
- Authority
- FR
- France
- Prior art keywords
- relative speed
- distance
- frequency modulated
- radar device
- speed measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- 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
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
-
- 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
- G01S13/343—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 sawtooth modulation
Abstract
L'invention concerne un dispositif radar à modulation de fréquence pour la mesure simultanée de la distance et de la vitesse relative. Ce dispositif comprend, après changement de fréquence du signal reçu successivement avec une serie de fréquences différentes définissant des intervalles de distance et filtrage passe-bande, au moins trois mélangeurs 12, 12', 12" avec des fréquences différant d'une valeur inférieure ou égale à la moitié de la bande passante définissant un intervalle de distance. Seule la raie spectrale de plus grande amplitude est sélectionnée, après filtrage 41, 41', 41", par un arrangement 30, 31 pour être mesuree et évaluée 73, 77, 20. L'invention s'applique aux dispositifs radars à émission continue à modulation de fréquence en dents de scie.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792900825 DE2900825A1 (de) | 1979-01-11 | 1979-01-11 | Rueckstrahlortungsgeraet zur gleichzeitigen messung von entfernung und relativgeschwindigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2446488A1 true FR2446488A1 (fr) | 1980-08-08 |
FR2446488B1 FR2446488B1 (fr) | 1985-04-12 |
Family
ID=6060325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8000287A Granted FR2446488A1 (fr) | 1979-01-11 | 1980-01-08 | Dispositif radar a modulation de frequence pour la mesure simultanee de la distance et de la vitesse relative |
Country Status (5)
Country | Link |
---|---|
US (1) | US4301453A (fr) |
DE (1) | DE2900825A1 (fr) |
FR (1) | FR2446488A1 (fr) |
GB (1) | GB2040639B (fr) |
IT (1) | IT1193887B (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2102648B (en) * | 1981-07-24 | 1984-09-19 | Ferranti Ltd | Radar systems with clutter suppression |
DE3222263A1 (de) * | 1982-06-09 | 1983-02-03 | Günter 1000 Berlin Mehnert | Abstands-warnsystem fuer kraftfahrzeuge |
GB2139035B (en) * | 1983-03-18 | 1987-06-03 | Marconi Co Ltd | Radar vehicle braking control |
DE4013037A1 (de) * | 1990-04-24 | 1991-10-31 | Standard Elektrik Lorenz Ag | Verfahren zur mobilen verkehrsueberwachung und messfahrzeug zur durchfuehrung des verfahrens |
DE4120479A1 (de) * | 1991-06-21 | 1992-12-24 | Standard Elektrik Lorenz Ag | Dauerstrich-radargeraet, zusaetzlich als sender fuer die informationsuebertragung verwendbar |
US5633642A (en) * | 1993-11-23 | 1997-05-27 | Siemens Aktiengesellschaft | Radar method and device for carrying out the method |
US10585182B2 (en) * | 2017-03-24 | 2020-03-10 | GM Global Technology Operations LLC | Velocity measurement with asymmetric doppler spectrum |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1370583A (fr) * | 1963-01-17 | 1964-08-28 | Marconi Co Ltd | Perfectionnements aux radars |
FR2351419A1 (fr) * | 1975-04-04 | 1977-12-09 | Int Standard Electric Corp | Appareil pour la mesure simultanee de la distance et de la vitesse relative |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49107491A (fr) * | 1973-02-15 | 1974-10-12 |
-
1979
- 1979-01-11 DE DE19792900825 patent/DE2900825A1/de active Granted
- 1979-12-31 US US06/108,637 patent/US4301453A/en not_active Expired - Lifetime
-
1980
- 1980-01-08 FR FR8000287A patent/FR2446488A1/fr active Granted
- 1980-01-08 GB GB8000484A patent/GB2040639B/en not_active Expired
- 1980-01-10 IT IT19123/80A patent/IT1193887B/it active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1370583A (fr) * | 1963-01-17 | 1964-08-28 | Marconi Co Ltd | Perfectionnements aux radars |
FR2351419A1 (fr) * | 1975-04-04 | 1977-12-09 | Int Standard Electric Corp | Appareil pour la mesure simultanee de la distance et de la vitesse relative |
Also Published As
Publication number | Publication date |
---|---|
DE2900825A1 (de) | 1980-07-24 |
FR2446488B1 (fr) | 1985-04-12 |
US4301453A (en) | 1981-11-17 |
GB2040639B (en) | 1983-03-02 |
IT8019123A0 (it) | 1980-01-10 |
GB2040639A (en) | 1980-08-28 |
DE2900825C2 (fr) | 1988-10-13 |
IT1193887B (it) | 1988-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |