IT1189387B - Dispositivo di cancellazione automatica di echi radar indesiderati di seconda traccia e/o da grande distanza - Google Patents
Dispositivo di cancellazione automatica di echi radar indesiderati di seconda traccia e/o da grande distanzaInfo
- Publication number
- IT1189387B IT1189387B IT49272/82A IT4927282A IT1189387B IT 1189387 B IT1189387 B IT 1189387B IT 49272/82 A IT49272/82 A IT 49272/82A IT 4927282 A IT4927282 A IT 4927282A IT 1189387 B IT1189387 B IT 1189387B
- Authority
- IT
- Italy
- Prior art keywords
- track
- large distance
- cancellation device
- radar echoes
- automatic cancellation
- Prior art date
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
- G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
-
- 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
- G01S13/20—Systems for measuring distance only using transmission of interrupted, pulse modulated waves whereby multiple time-around echoes are used or eliminated
-
- 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)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT49272/82A IT1189387B (it) | 1982-10-15 | 1982-10-15 | Dispositivo di cancellazione automatica di echi radar indesiderati di seconda traccia e/o da grande distanza |
JP58191090A JPS59145979A (ja) | 1982-10-15 | 1983-10-14 | エコ−消去装置 |
EP83110275A EP0106340B1 (en) | 1982-10-15 | 1983-10-14 | Device for automatic cancelling of undesired radar echoes |
DE8383110275T DE3380099D1 (en) | 1982-10-15 | 1983-10-14 | Device for automatic cancelling of undesired radar echoes |
US06/542,773 US4616228A (en) | 1982-10-15 | 1983-10-17 | System for suppressing unwanted long-range and/or second-time-around radar echoes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT49272/82A IT1189387B (it) | 1982-10-15 | 1982-10-15 | Dispositivo di cancellazione automatica di echi radar indesiderati di seconda traccia e/o da grande distanza |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8249272A0 IT8249272A0 (it) | 1982-10-15 |
IT1189387B true IT1189387B (it) | 1988-02-04 |
Family
ID=11270169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49272/82A IT1189387B (it) | 1982-10-15 | 1982-10-15 | Dispositivo di cancellazione automatica di echi radar indesiderati di seconda traccia e/o da grande distanza |
Country Status (5)
Country | Link |
---|---|
US (1) | US4616228A (it) |
EP (1) | EP0106340B1 (it) |
JP (1) | JPS59145979A (it) |
DE (1) | DE3380099D1 (it) |
IT (1) | IT1189387B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60169782A (ja) * | 1984-02-14 | 1985-09-03 | Nec Corp | 移動目標表示装置 |
US6184820B1 (en) * | 1984-11-29 | 2001-02-06 | Lockheed Martin Corp. | Coherent pulse radar system |
US4890113A (en) * | 1987-12-09 | 1989-12-26 | Westinghouse Electric Corp. | Second time around clutter cancellation system |
US6087972A (en) * | 1998-03-05 | 2000-07-11 | The Whitaker Corporation | Microwave sensor for object motion detection |
AT411500B (de) * | 2001-06-12 | 2004-01-26 | Siemens Ag Oesterreich | Duales mautsystem |
US10444348B2 (en) * | 2017-08-17 | 2019-10-15 | Gm Global Technology Operations | Separation of close targets based on Doppler precoding |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB892282A (en) * | 1959-03-26 | 1962-03-21 | Marconi Wireless Telegraph Co | Improvements in or relating to pulsed radar systems |
US3828348A (en) * | 1971-10-21 | 1974-08-06 | Hughes Aircraft Co | System for minimizing multiple time around echos in a coherent-on-receive-doppler radar |
US4040055A (en) * | 1974-07-15 | 1977-08-02 | International Telephone And Telegraph Corporation | Digital compensator for transmitter instability |
US4021804A (en) * | 1975-07-07 | 1977-05-03 | Motorola, Inc. | Synchronized, coherent timing system for coherent-on-receive radar system |
FR2321706A1 (fr) * | 1975-08-22 | 1977-03-18 | Labo Cent Telecommunicat | Perfectionnements aux radars doppler coherents a impulsions |
US4217584A (en) * | 1976-06-15 | 1980-08-12 | Gaspare Galati | System for the suppression by matching techniques of unwanted echoes in impulse coherent radars |
US4095224A (en) * | 1976-11-12 | 1978-06-13 | Motorola, Inc. | Digital phase correction for coherent-on-receive pulsed radar system |
US4119962A (en) * | 1977-11-23 | 1978-10-10 | The United States Of America As Represented By The Secretary Of The Navy | Multiple memory adaptive MTI |
FR2411418A1 (fr) * | 1977-12-08 | 1979-07-06 | Labo Cent Telecommunicat | Procede et dispositif d'elimination des echos de retours multiples pour radars doppler a impulsions |
-
1982
- 1982-10-15 IT IT49272/82A patent/IT1189387B/it active
-
1983
- 1983-10-14 EP EP83110275A patent/EP0106340B1/en not_active Expired
- 1983-10-14 JP JP58191090A patent/JPS59145979A/ja active Pending
- 1983-10-14 DE DE8383110275T patent/DE3380099D1/de not_active Expired
- 1983-10-17 US US06/542,773 patent/US4616228A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS59145979A (ja) | 1984-08-21 |
IT8249272A0 (it) | 1982-10-15 |
US4616228A (en) | 1986-10-07 |
DE3380099D1 (en) | 1989-07-27 |
EP0106340A1 (en) | 1984-04-25 |
EP0106340B1 (en) | 1989-06-21 |
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