DE2851218C2 - Doppler-Impulsradarsystem für Luftfahrzeuge zur Messung der Geschwindigkeit über Grund - Google Patents
Doppler-Impulsradarsystem für Luftfahrzeuge zur Messung der Geschwindigkeit über GrundInfo
- Publication number
- DE2851218C2 DE2851218C2 DE2851218A DE2851218A DE2851218C2 DE 2851218 C2 DE2851218 C2 DE 2851218C2 DE 2851218 A DE2851218 A DE 2851218A DE 2851218 A DE2851218 A DE 2851218A DE 2851218 C2 DE2851218 C2 DE 2851218C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- frequency
- mixer
- transmitting
- switched
- 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
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 10
- 230000010363 phase shift Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- LKJPSUCKSLORMF-UHFFFAOYSA-N Monolinuron Chemical compound CON(C)C(=O)NC1=CC=C(Cl)C=C1 LKJPSUCKSLORMF-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- G01S13/02—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
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)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/854,571 US4158202A (en) | 1977-11-25 | 1977-11-25 | Receiver bandwidth conservation in a Doppler radar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2851218A1 DE2851218A1 (de) | 1979-06-07 |
| DE2851218C2 true DE2851218C2 (de) | 1987-04-30 |
Family
ID=25319067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2851218A Expired DE2851218C2 (de) | 1977-11-25 | 1978-11-27 | Doppler-Impulsradarsystem für Luftfahrzeuge zur Messung der Geschwindigkeit über Grund |
Country Status (9)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5876784A (ja) * | 1981-10-31 | 1983-05-09 | Nissan Motor Co Ltd | 車両用光パルスレ−ダ装置 |
| JPS5929067A (ja) * | 1982-08-09 | 1984-02-16 | 三協電業株式会社 | 分級機 |
| US6396437B1 (en) * | 1984-03-12 | 2002-05-28 | Bae Systems Aerospace Inc. | Radar multibeam velocity sensor |
| US4942404A (en) * | 1989-07-18 | 1990-07-17 | Ail Systems, Inc. | Passive doppler differential ranging system and method |
| US5598794A (en) * | 1995-02-13 | 1997-02-04 | Fluid Power Industries, Inc. | High accuracy automatically controlled variable linear seed spacing planting apparatus |
| CN105204016B (zh) * | 2014-06-30 | 2017-10-10 | 株式会社理光 | 判断是否存在多普勒效应的方法和系统 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2923000A (en) * | 1956-12-31 | 1960-01-26 | Gen Precision Lab Inc | Microwave system for velocity measurements |
| US3150323A (en) * | 1958-02-26 | 1964-09-22 | Gen Precision Inc | Coincident frequency tracker in which oscillation generator generates two distinct frequencies alternately |
| US3134102A (en) * | 1958-02-28 | 1964-05-19 | Gen Precision Inc | Aircraft doppler measuring system |
| US3013262A (en) * | 1959-04-02 | 1961-12-12 | Collins Radio Co | Fm doppler navigation system utilizing first fm sideband |
| US3095563A (en) * | 1960-04-28 | 1963-06-25 | Gen Precision Inc | Mixer circuit for radar systems |
| US3371341A (en) * | 1967-05-01 | 1968-02-27 | Gen Precision Systems Inc | Method and means for extracting velocity sense from a non-coherent janus doppler rada system |
| US3852744A (en) * | 1973-01-05 | 1974-12-03 | Singer Co | Single time shared receiver and frequency tracker for a beam-lobed doppler radar system |
-
1977
- 1977-11-25 US US05/854,571 patent/US4158202A/en not_active Expired - Lifetime
-
1978
- 1978-08-16 GB GB7833492A patent/GB2008884B/en not_active Expired
- 1978-08-21 IL IL55399A patent/IL55399A/xx unknown
- 1978-08-31 CA CA000310398A patent/CA1137600A/en not_active Expired
- 1978-10-02 JP JP12142578A patent/JPS5476092A/ja active Granted
- 1978-10-20 FR FR7829937A patent/FR2410284B1/fr not_active Expired
- 1978-11-22 SE SE7812040A patent/SE439996B/sv not_active IP Right Cessation
- 1978-11-24 NO NO783962A patent/NO147536C/no unknown
- 1978-11-27 DE DE2851218A patent/DE2851218C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE439996B (sv) | 1985-07-08 |
| JPS5476092A (en) | 1979-06-18 |
| NO783962L (no) | 1979-05-28 |
| SE7812040L (sv) | 1979-05-26 |
| GB2008884B (en) | 1982-07-14 |
| US4158202A (en) | 1979-06-12 |
| IL55399A (en) | 1980-11-30 |
| FR2410284B1 (fr) | 1986-08-14 |
| CA1137600A (en) | 1982-12-14 |
| NO147536B (no) | 1983-01-17 |
| DE2851218A1 (de) | 1979-06-07 |
| GB2008884A (en) | 1979-06-06 |
| NO147536C (no) | 1983-05-04 |
| FR2410284A1 (fr) | 1979-06-22 |
| JPS6250789B2 (US07923587-20110412-C00022.png) | 1987-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| 8128 | New person/name/address of the agent |
Representative=s name: OEDEKOVEN, W., DIPL.-ING., PAT.-ANW., 8000 MUENCHE |
|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |