NO310001B1 - Digital korrelator - Google Patents
Digital korrelator Download PDFInfo
- Publication number
- NO310001B1 NO310001B1 NO952804A NO952804A NO310001B1 NO 310001 B1 NO310001 B1 NO 310001B1 NO 952804 A NO952804 A NO 952804A NO 952804 A NO952804 A NO 952804A NO 310001 B1 NO310001 B1 NO 310001B1
- Authority
- NO
- Norway
- Prior art keywords
- word
- correlator
- ramp
- segment
- weighted
- Prior art date
Links
- 238000010606 normalization Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 14
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 230000008685 targeting Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 17
- 230000002596 correlated effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 238000001228 spectrum Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 230000002452 interceptive effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification 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
- G01S13/52—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
- G01S13/5246—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 post processors for coherent MTI discriminators, e.g. residue cancellers, CFAR after Doppler filters
-
- 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
- G01S13/5244—Adaptive clutter cancellation
-
- 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
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
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)
- Ultra Sonic Daignosis Equipment (AREA)
- Electrophonic Musical Instruments (AREA)
- Photoreceptors In Electrophotography (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/276,015 US5483243A (en) | 1994-07-15 | 1994-07-15 | Ramp-weighted correlation with oversampling |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO952804D0 NO952804D0 (no) | 1995-07-14 |
| NO952804L NO952804L (no) | 1996-01-16 |
| NO310001B1 true NO310001B1 (no) | 2001-04-30 |
Family
ID=23054793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO952804A NO310001B1 (no) | 1994-07-15 | 1995-07-14 | Digital korrelator |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5483243A (de) |
| EP (1) | EP0692720B1 (de) |
| JP (1) | JP2705919B2 (de) |
| AU (1) | AU674271B2 (de) |
| CA (1) | CA2152854C (de) |
| DE (1) | DE69504597T2 (de) |
| IL (1) | IL114554A (de) |
| NO (1) | NO310001B1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579014A (en) * | 1995-01-20 | 1996-11-26 | General Electric Company | Parallel correlator for global positioning system receiver |
| US6370208B1 (en) * | 1999-02-26 | 2002-04-09 | Industrial Technical Research Institute | Correlator for CDMA applications |
| GB2381607A (en) * | 2001-11-01 | 2003-05-07 | Matthew James Johnson | Serila-parallel correlator architecture |
| US7369603B2 (en) * | 2003-05-28 | 2008-05-06 | Intel Corporation | Compensating for spectral attenuation |
| FR2898998B1 (fr) * | 2006-03-21 | 2008-07-25 | Thales Sa | Procede et dispositif de calcul de correlation rapide |
| JP5492135B2 (ja) * | 2011-04-06 | 2014-05-14 | 株式会社東芝 | レーダ装置及び受信データ処理方法 |
| US8884807B1 (en) * | 2012-05-09 | 2014-11-11 | Malå Geoscience USA | Pseudo real time receive signal sampling for ground penetrating radar |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3412334A (en) * | 1964-05-06 | 1968-11-19 | Navy Usa | Digital correlator |
| CA953010A (en) * | 1971-12-03 | 1974-08-13 | Her Majesty In Right Of Canada As Represented By The Minister Of Transpo Rt | Radar cross correlator |
| FR2374651A1 (fr) * | 1976-12-16 | 1978-07-13 | Labo Cent Telecommunicat | Dispositif d'elimination des lobes secondaires d'auto-correlation d'un signal continu periodique code en phase |
| US4566010A (en) * | 1982-04-28 | 1986-01-21 | Raytheon Company | Processing arrangement for pulse compression radar |
| US4989009A (en) * | 1990-03-19 | 1991-01-29 | Hughes Aircraft Company | Digital range correlator |
-
1994
- 1994-07-15 US US08/276,015 patent/US5483243A/en not_active Expired - Lifetime
-
1995
- 1995-06-28 CA CA002152854A patent/CA2152854C/en not_active Expired - Fee Related
- 1995-07-10 DE DE69504597T patent/DE69504597T2/de not_active Expired - Lifetime
- 1995-07-10 EP EP95110757A patent/EP0692720B1/de not_active Expired - Lifetime
- 1995-07-11 IL IL11455495A patent/IL114554A/xx not_active IP Right Cessation
- 1995-07-14 NO NO952804A patent/NO310001B1/no not_active IP Right Cessation
- 1995-07-17 AU AU25018/95A patent/AU674271B2/en not_active Ceased
- 1995-07-17 JP JP7180484A patent/JP2705919B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0692720A1 (de) | 1996-01-17 |
| AU2501895A (en) | 1996-01-25 |
| DE69504597D1 (de) | 1998-10-15 |
| EP0692720B1 (de) | 1998-09-09 |
| NO952804L (no) | 1996-01-16 |
| CA2152854C (en) | 1999-01-19 |
| DE69504597T2 (de) | 1999-05-12 |
| NO952804D0 (no) | 1995-07-14 |
| US5483243A (en) | 1996-01-09 |
| CA2152854A1 (en) | 1996-01-16 |
| IL114554A (en) | 1999-09-22 |
| AU674271B2 (en) | 1996-12-12 |
| JP2705919B2 (ja) | 1998-01-28 |
| IL114554A0 (en) | 1995-11-27 |
| JPH0868851A (ja) | 1996-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4137532A (en) | VIP doppler filter bank signal processor for pulse doppler radar | |
| EP0601866B1 (de) | Radar-System mit Dopplertoleranter Reichweitenebenzipfelunterdrückung und Signal-Verarbeitung im Zeitbereich | |
| US5410750A (en) | Interference suppressor for a radio receiver | |
| US4597107A (en) | Modulation detector and classifier | |
| US4156876A (en) | Autocorrelation sidelobe suppression device for a continuous periodic phase-coded signal | |
| AU2006306650B2 (en) | Sonar system and method providing low probability of impact on marine mammals | |
| US5179542A (en) | Signal processor | |
| CA2262848C (fr) | Radar a compression d'impulsion | |
| US5402131A (en) | Detection of radar targets using higher-order statistics | |
| US4730189A (en) | Pulse Doppler radar with variable pulse repetition frequency | |
| US4379295A (en) | Low sidelobe pulse compressor | |
| US5515300A (en) | Coherent signal power detector using higher-order statistics | |
| US5070337A (en) | Optimization method and an optimized filter for sidelobe suppression | |
| US4468761A (en) | Noise suppression method | |
| US5113194A (en) | Acceleration compensation by matched filtering | |
| US4011438A (en) | Simplified digital moving target indicator filter | |
| US4723125A (en) | Device for calculating a discrete moving window transform and application thereof to a radar system | |
| FR2737307A1 (fr) | Systeme de mesure de distance | |
| NO310001B1 (no) | Digital korrelator | |
| US5357256A (en) | Radar receiver with adaptive clutter threshold reference | |
| CA1206584A (fr) | Dispositif de filtrage adaptatif de signaux recus par un sonar actif pour la rejection de la reverberation | |
| US8321491B2 (en) | System and method for detecting a weak signal in a noisy environment | |
| US5036324A (en) | Pulse compression technique for high duty factor radar | |
| US5757848A (en) | Method and apparatus for a decimating digital PN correlator | |
| US4003052A (en) | Digital prefilter for clutter attenuation in MTI radars |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |