JPS55122173A - Noise suppression circuit - Google Patents
Noise suppression circuitInfo
- Publication number
- JPS55122173A JPS55122173A JP2968679A JP2968679A JPS55122173A JP S55122173 A JPS55122173 A JP S55122173A JP 2968679 A JP2968679 A JP 2968679A JP 2968679 A JP2968679 A JP 2968679A JP S55122173 A JPS55122173 A JP S55122173A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- distribution
- parameters
- output
- calculator
- 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
- 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
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
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)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2968679A JPS55122173A (en) | 1979-03-14 | 1979-03-14 | Noise suppression circuit |
US06/129,457 US4318101A (en) | 1979-03-14 | 1980-03-11 | MTI Radar comprising a processor selectively operable as a Weibull and a Rayleigh clutter suppressor |
FR8005672A FR2451589B1 (fr) | 1979-03-14 | 1980-03-13 | Radar a dispositif eliminateur d'images parasites |
GB8008504A GB2044575B (en) | 1979-03-14 | 1980-03-13 | Mti radar comprising a processor selectively operable as aweibull and a rayleigh clutter suppressor |
IT20564/80A IT1129650B (it) | 1979-03-14 | 1980-03-13 | Radar mti comprendente un processore atto ad essere fatto funzioanre selettivamente come un soppressore di echi di weibull e rayleigh |
DE3009753A DE3009753C2 (de) | 1979-03-14 | 1980-03-14 | Radar zur Anzeige eines bewegten Zieles (MTI) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2968679A JPS55122173A (en) | 1979-03-14 | 1979-03-14 | Noise suppression circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55122173A true JPS55122173A (en) | 1980-09-19 |
JPS6111380B2 JPS6111380B2 (ja) | 1986-04-02 |
Family
ID=12282984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2968679A Granted JPS55122173A (en) | 1979-03-14 | 1979-03-14 | Noise suppression circuit |
Country Status (6)
Country | Link |
---|---|
US (1) | US4318101A (ja) |
JP (1) | JPS55122173A (ja) |
DE (1) | DE3009753C2 (ja) |
FR (1) | FR2451589B1 (ja) |
GB (1) | GB2044575B (ja) |
IT (1) | IT1129650B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6035283A (ja) * | 1983-07-20 | 1985-02-23 | Matsuo Sekine | 雑音抑圧装置 |
JPS6120875A (ja) * | 1984-07-09 | 1986-01-29 | Nec Corp | 信号検出方式 |
JP2006343252A (ja) * | 2005-06-10 | 2006-12-21 | Nec Corp | 信号検出方法及び信号検出装置 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57165774A (en) * | 1981-04-03 | 1982-10-12 | Nec Corp | General purpose control device for rate of erroneously issued alarm |
GB2191052B (en) * | 1981-10-28 | 1988-05-25 | Emi Ltd | Radar apparatus |
FR2535066B1 (fr) * | 1982-10-22 | 1985-09-13 | Thomson Csf | Dispositif de determination du seuil d'elimination d'echos fixes, notamment pour recepteurs radar |
US4586043A (en) * | 1984-03-21 | 1986-04-29 | The United States Of America As Represented By The Secretary Of The Air Force | Distribution sensitive constant false alarm rate (CFAR) processor |
JPS6128883A (ja) * | 1984-07-19 | 1986-02-08 | Matsuo Sekine | 物標信号検出装置 |
DE3689037D1 (de) * | 1985-12-23 | 1993-10-21 | Nec Corp | Radarsystem. |
US4894661A (en) * | 1986-04-23 | 1990-01-16 | Furuno Electric Company, Limited | Fish school detecting method or apparatus |
GB2274037B (en) * | 1992-12-30 | 1997-07-23 | Samsung Electronics Co Ltd | Video signal main processor for radar system |
JPH09145829A (ja) * | 1995-11-28 | 1997-06-06 | Mitsubishi Electric Corp | レーダ信号処理装置 |
US5808579A (en) * | 1996-12-20 | 1998-09-15 | Northrop Grumman Corporation | Radar system using a cell averaging constant false alarm rate device |
ES2369862T3 (es) * | 2006-11-02 | 2011-12-07 | Raytheon Canada Limited | Detector de blancos móviles para sistemas de radar. |
CA2774377C (en) | 2012-02-02 | 2017-05-02 | Raytheon Canada Limited | Knowledge aided detector |
CN110109067B (zh) * | 2019-05-06 | 2022-11-04 | 西安思丹德信息技术有限公司 | 一种陆基fmcw区域监控雷达数据处理方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995270A (en) * | 1975-06-16 | 1976-11-30 | The United States Of America As Represented By The Secretary Of The Navy | Constant false alarm rate (CFAR) circuitry for minimizing extraneous target sensitivity |
-
1979
- 1979-03-14 JP JP2968679A patent/JPS55122173A/ja active Granted
-
1980
- 1980-03-11 US US06/129,457 patent/US4318101A/en not_active Expired - Lifetime
- 1980-03-13 IT IT20564/80A patent/IT1129650B/it active
- 1980-03-13 GB GB8008504A patent/GB2044575B/en not_active Expired
- 1980-03-13 FR FR8005672A patent/FR2451589B1/fr not_active Expired
- 1980-03-14 DE DE3009753A patent/DE3009753C2/de not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6035283A (ja) * | 1983-07-20 | 1985-02-23 | Matsuo Sekine | 雑音抑圧装置 |
JPH0215835B2 (ja) * | 1983-07-20 | 1990-04-13 | Matsuo Sekine | |
JPS6120875A (ja) * | 1984-07-09 | 1986-01-29 | Nec Corp | 信号検出方式 |
JP2006343252A (ja) * | 2005-06-10 | 2006-12-21 | Nec Corp | 信号検出方法及び信号検出装置 |
JP4655766B2 (ja) * | 2005-06-10 | 2011-03-23 | 日本電気株式会社 | 信号検出方法及び信号検出装置 |
Also Published As
Publication number | Publication date |
---|---|
GB2044575B (en) | 1983-05-05 |
IT8020564A0 (it) | 1980-03-13 |
US4318101A (en) | 1982-03-02 |
IT1129650B (it) | 1986-06-11 |
FR2451589B1 (fr) | 1986-02-07 |
DE3009753C2 (de) | 1982-10-14 |
DE3009753A1 (de) | 1980-09-18 |
GB2044575A (en) | 1980-10-15 |
FR2451589A1 (fr) | 1980-10-10 |
JPS6111380B2 (ja) | 1986-04-02 |
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