FR1519745A - Perfectionnements aux dispositifs corrélateurs optiques appliqués plus particulièrement aux récepteurs de systèmes radars à codes pseudo-aléatoires - Google Patents
Perfectionnements aux dispositifs corrélateurs optiques appliqués plus particulièrement aux récepteurs de systèmes radars à codes pseudo-aléatoiresInfo
- Publication number
- FR1519745A FR1519745A FR95949A FR95949A FR1519745A FR 1519745 A FR1519745 A FR 1519745A FR 95949 A FR95949 A FR 95949A FR 95949 A FR95949 A FR 95949A FR 1519745 A FR1519745 A FR 1519745A
- Authority
- FR
- France
- Prior art keywords
- receivers
- pseudo
- random code
- radar systems
- devices applied
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
- G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
- G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
-
- 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
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
- G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
-
- 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
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
- G01S13/587—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value using optical means
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR95949A FR1519745A (fr) | 1967-02-22 | 1967-02-22 | Perfectionnements aux dispositifs corrélateurs optiques appliqués plus particulièrement aux récepteurs de systèmes radars à codes pseudo-aléatoires |
US707122A US3526893A (en) | 1967-02-22 | 1968-02-21 | Optical correlation system for received radar signals in pseudo-randomly coded radar systems |
GB8512/68A GB1222242A (en) | 1967-02-22 | 1968-02-21 | Optical correlation system for received radar signals in pseudo-randomly coded radar systems |
DE19681673901 DE1673901A1 (de) | 1967-02-22 | 1968-02-22 | Optischer Echtzeit-Korrelator fuer pseudozufaellig-kodierte Radarempfaenger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR95949A FR1519745A (fr) | 1967-02-22 | 1967-02-22 | Perfectionnements aux dispositifs corrélateurs optiques appliqués plus particulièrement aux récepteurs de systèmes radars à codes pseudo-aléatoires |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1519745A true FR1519745A (fr) | 1968-04-05 |
Family
ID=8625703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR95949A Expired FR1519745A (fr) | 1967-02-22 | 1967-02-22 | Perfectionnements aux dispositifs corrélateurs optiques appliqués plus particulièrement aux récepteurs de systèmes radars à codes pseudo-aléatoires |
Country Status (4)
Country | Link |
---|---|
US (1) | US3526893A (fr) |
DE (1) | DE1673901A1 (fr) |
FR (1) | FR1519745A (fr) |
GB (1) | GB1222242A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4072861A (en) * | 1970-12-04 | 1978-02-07 | Thomson-Csf | Optical tracking system |
US3767907A (en) * | 1971-06-16 | 1973-10-23 | Burroughs Corp | Correlation measurement apparatus |
DE2414644A1 (de) * | 1974-03-27 | 1975-10-02 | Krupp Gmbh | Vorrichtung zum empfangsseitigen bilden von richt-charakteristiken und zum korrelieren |
NL7414060A (nl) * | 1974-10-28 | 1976-05-03 | Optische Ind De Oude Delft Nv | Elektro-optische correlator. |
US4118701A (en) * | 1976-10-08 | 1978-10-03 | Nasa | FM/CW radar system |
US4371873A (en) * | 1977-12-08 | 1983-02-01 | Nasa | Clutter free synthetic aperture radar correlator |
US4286328A (en) * | 1978-10-06 | 1981-08-25 | The United States Of America As Represented By The Secretary Of The Navy | Incoherent optical ambiguity function generator |
GB2129935B (en) * | 1982-03-30 | 1985-10-02 | Marconi Co Ltd | An adaptive filter |
GB2119089A (en) * | 1982-03-30 | 1983-11-09 | Marconi Co Ltd | An adaptive filter |
US4929953A (en) * | 1988-12-28 | 1990-05-29 | Grumman Aerospace Corporation | Method and apparatus for continuous on line recording and processing of synthetic aperture radar signals in real time |
JP2003344012A (ja) * | 2002-05-29 | 2003-12-03 | Sony Corp | 位置認識装置および位置認識方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3030021A (en) * | 1955-01-13 | 1962-04-17 | Schlumberger Well Surv Corp | Computing apparatus |
US3052843A (en) * | 1955-06-01 | 1962-09-04 | Hurvitz Hyman | Frequency measuring and phase measuring systems |
US3088113A (en) * | 1958-06-27 | 1963-04-30 | Fairchild Camera Instr Co | Correlation system for radar and the like |
US3184679A (en) * | 1961-10-17 | 1965-05-18 | Texas Instruments Inc | Multi-phase signal processor for light line optical correlator |
US3355579A (en) * | 1965-10-20 | 1967-11-28 | Bell Telephone Labor Inc | Correlation apparatus |
-
1967
- 1967-02-22 FR FR95949A patent/FR1519745A/fr not_active Expired
-
1968
- 1968-02-21 GB GB8512/68A patent/GB1222242A/en not_active Expired
- 1968-02-21 US US707122A patent/US3526893A/en not_active Expired - Lifetime
- 1968-02-22 DE DE19681673901 patent/DE1673901A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1673901A1 (de) | 1972-03-09 |
GB1222242A (en) | 1971-02-10 |
US3526893A (en) | 1970-09-01 |
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