FI65863C - Filteranordning ingaoende i en pulsdopplerradar - Google Patents
Filteranordning ingaoende i en pulsdopplerradar Download PDFInfo
- Publication number
- FI65863C FI65863C FI782352A FI782352A FI65863C FI 65863 C FI65863 C FI 65863C FI 782352 A FI782352 A FI 782352A FI 782352 A FI782352 A FI 782352A FI 65863 C FI65863 C FI 65863C
- Authority
- FI
- Finland
- Prior art keywords
- filter
- frequency
- interference signals
- signal
- speed range
- Prior art date
Links
- 238000005070 sampling Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000004044 response Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101150008481 not2 gene Proteins 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 241001274197 Scatophagus argus Species 0.000 description 2
- 241000219095 Vitis Species 0.000 description 2
- 235000009754 Vitis X bourquina Nutrition 0.000 description 2
- 235000012333 Vitis X labruscana Nutrition 0.000 description 2
- 235000014787 Vitis vinifera Nutrition 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 241001369972 Deudorix epijarbas Species 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- VJBCNMFKFZIXHC-UHFFFAOYSA-N azanium;2-(4-methyl-5-oxo-4-propan-2-yl-1h-imidazol-2-yl)quinoline-3-carboxylate Chemical compound N.N1C(=O)C(C(C)C)(C)N=C1C1=NC2=CC=CC=C2C=C1C(O)=O VJBCNMFKFZIXHC-UHFFFAOYSA-N 0.000 description 1
- 239000011046 carnelian Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003533 narcotic effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 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
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/526—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on the whole spectrum without loss of range information, e.g. using delay line cancellers or comb filters
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)
- Surgical Instruments (AREA)
- Sheet Holders (AREA)
- Electrotherapy Devices (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7709119A SE409148B (sv) | 1977-08-12 | 1977-08-12 | Filteranordning ingaende i mottagaren hos en pulsdopplerradar |
| SE7709119 | 1977-08-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI782352A7 FI782352A7 (fi) | 1979-02-13 |
| FI65863B FI65863B (fi) | 1984-03-30 |
| FI65863C true FI65863C (fi) | 1984-07-10 |
Family
ID=20331986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI782352A FI65863C (fi) | 1977-08-12 | 1978-07-28 | Filteranordning ingaoende i en pulsdopplerradar |
Country Status (10)
| Country | Link |
|---|---|
| CH (1) | CH632850A5 (de) |
| DE (1) | DE2833050C2 (de) |
| DK (1) | DK147428C (de) |
| FI (1) | FI65863C (de) |
| FR (1) | FR2400212A1 (de) |
| GB (1) | GB2002617B (de) |
| IT (1) | IT1098359B (de) |
| NL (1) | NL187872C (de) |
| NO (1) | NO145964C (de) |
| SE (1) | SE409148B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2632420B1 (fr) * | 1987-10-16 | 1990-10-12 | Thomson Csf | Procede et dispositif de compensation de la vitesse du fouillis dans un radar doppler coherent a vitesse ambigue variable |
| DE19654769A1 (de) * | 1996-12-30 | 1998-07-02 | Teves Gmbh Alfred | Verfahren und Vorrichtung zur Fahrzeugsteuerung bzw. -regelung |
| US6049302A (en) * | 1999-05-04 | 2000-04-11 | Boeing North American | Pulsed doppler radar system with small intermediate frequency filters |
| GB0301614D0 (en) * | 2003-01-24 | 2013-05-08 | Qinetiq Ltd | Target visibility enhancement system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3742500A (en) * | 1970-08-24 | 1973-06-26 | Raytheon Co | Mti radar |
| DE2212272A1 (de) * | 1971-03-17 | 1972-09-28 | Int Standard Electric Corp | Impulsdopplerradargeraet |
| US3962704A (en) * | 1974-05-31 | 1976-06-08 | Hughes Aircraft Company | Moving target indicator clutter tracker |
| US4035799A (en) * | 1975-11-04 | 1977-07-12 | The United States Of America As Represented By The Secretary Of The Navy | Digital mean clutter doppler compensation system |
-
1977
- 1977-08-12 SE SE7709119A patent/SE409148B/sv not_active IP Right Cessation
-
1978
- 1978-07-24 GB GB7830900A patent/GB2002617B/en not_active Expired
- 1978-07-26 FR FR7822113A patent/FR2400212A1/fr active Granted
- 1978-07-27 DE DE2833050A patent/DE2833050C2/de not_active Expired
- 1978-07-28 FI FI782352A patent/FI65863C/sv not_active IP Right Cessation
- 1978-08-02 NL NLAANVRAGE7808152,A patent/NL187872C/xx not_active IP Right Cessation
- 1978-08-10 IT IT26665/78A patent/IT1098359B/it active
- 1978-08-11 NO NO782748A patent/NO145964C/no unknown
- 1978-08-11 DK DK356178A patent/DK147428C/da not_active IP Right Cessation
- 1978-08-11 CH CH855578A patent/CH632850A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI782352A7 (fi) | 1979-02-13 |
| DK147428C (da) | 1985-02-11 |
| SE409148B (sv) | 1979-07-30 |
| NO145964C (no) | 1982-06-30 |
| DE2833050A1 (de) | 1979-03-01 |
| FI65863B (fi) | 1984-03-30 |
| FR2400212A1 (fr) | 1979-03-09 |
| GB2002617A (en) | 1979-02-21 |
| FR2400212B1 (de) | 1984-12-28 |
| SE7709119L (sv) | 1979-02-13 |
| IT7826665A0 (it) | 1978-08-10 |
| DE2833050C2 (de) | 1986-08-07 |
| DK147428B (da) | 1984-07-30 |
| NO782748L (no) | 1979-02-13 |
| NO145964B (no) | 1982-03-22 |
| NL187872C (nl) | 1992-02-03 |
| IT1098359B (it) | 1985-09-07 |
| CH632850A5 (de) | 1982-10-29 |
| GB2002617B (en) | 1982-02-10 |
| NL7808152A (nl) | 1979-02-14 |
| NL187872B (nl) | 1991-09-02 |
| DK356178A (da) | 1979-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0797105B1 (de) | Verfahren zur Laufzeitmessung eines elektrischen, elektromagnetischen oder akustischen Signals | |
| US3631490A (en) | Signal processor for reducing clutter and eliminating range ambiguities in target detection systems | |
| US4578676A (en) | Delay lattice filter for radar doppler processing | |
| US4885590A (en) | Blind speed elimination for dual displaced phase center antenna radar processor mounted on a moving platform | |
| EP0277772A2 (de) | Radar-Doppler Verfahren und Gerät zur Messung der Anfangsgeschwindigkeit eines Projektils | |
| US5990824A (en) | Ground based pulse radar system and method providing high clutter rejection and reliable moving target indication with extended range for airport traffic control and other applications | |
| US20060071847A1 (en) | Method and apparatus for correcting velocity-induced range estimate phase errors in a two-tone monopulse CW radar | |
| CN106483507B (zh) | 一种高重频脉冲多普勒雷达体制下减小遮挡效应的方法 | |
| US4290066A (en) | High speed adaptive clutter filter | |
| EP0069415A1 (de) | Schaltungsanordnung zur Erkennung von bewegenden Zielen bei einem Radargerät | |
| FI65863C (fi) | Filteranordning ingaoende i en pulsdopplerradar | |
| EP0126032B1 (de) | Anordnung zur Identifikation und Unterdrückung von unerwünschten Zweitspur-Echos in Radarsystemen | |
| DE112013006842T5 (de) | Lasergerät | |
| US3480953A (en) | Moving target indicator having staggered pulse repetition frequency | |
| US4688044A (en) | Multiple range interval clutter cancellation circuit | |
| US20050035903A1 (en) | Apparatus for radar | |
| US4040057A (en) | Clutter filter for pulse doppler radar | |
| SE504018C2 (sv) | Sätt och anordning för kompensation av klotterhastigheten i en koherent dopplerradar med variabel blind hastighet | |
| US4222049A (en) | Circuit arrangement for eliminating fixed echoes in a pulse | |
| CN111983579B (zh) | 一种参差脉冲重复时间消除雷达速度模糊的方法 | |
| RU2673679C1 (ru) | Устройство цифровой обработки сигналов в импульсно-доплеровской рлс с компенсацией миграции целей по дальности | |
| CN106291531B (zh) | 一种采用高重频步进频与脉冲多普勒体制结合的参差跟踪方法 | |
| US3560972A (en) | Apparatus for flexibly weighting received echoes in a moving target indicator radar | |
| US3273147A (en) | Pulse radar system | |
| JPH0131154B2 (de) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MA | Patent expired | ||
| MA | Patent expired |
Owner name: OY L M ERICSSON AB |