JPS57206870A - Mti radar device - Google Patents
Mti radar deviceInfo
- Publication number
- JPS57206870A JPS57206870A JP9143281A JP9143281A JPS57206870A JP S57206870 A JPS57206870 A JP S57206870A JP 9143281 A JP9143281 A JP 9143281A JP 9143281 A JP9143281 A JP 9143281A JP S57206870 A JPS57206870 A JP S57206870A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- fluctuation
- processing circuit
- frequency
- mti
- 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.)
- Pending
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
- G01S7/288—Coherent receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To improve the stability of a transmission frequency by detecting the fluctuation of the frequency when it is transmitted and by compensating the fluctuation at the stage of processing a reception signal. CONSTITUTION:A directional coupler 11 takes out a part of a transmission signal. This signal is converted into a signal in an IF band by a mixer 12 and a phase difference between the latter and the COHO signal of a COHO oscillator 1 is detected by a phase detector 13. A signal detected by the phase detector 13 is compared with a signal free from the fluctuation of a frequency in an MTI processing circuit 14, and imformations on the degree of deviation and the direction thereof are stored inside the MTI processing circuit 14. Signals radiated into the air in this state are received one after another, subjected to phase detection through the route of circuit elements 5-9 and inputted in the MTI processing circuit 14. The modification of the input is performed there in accordance with the degree and direction of the deviation already memorized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9143281A JPS57206870A (en) | 1981-06-12 | 1981-06-12 | Mti radar device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9143281A JPS57206870A (en) | 1981-06-12 | 1981-06-12 | Mti radar device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57206870A true JPS57206870A (en) | 1982-12-18 |
Family
ID=14026201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9143281A Pending JPS57206870A (en) | 1981-06-12 | 1981-06-12 | Mti radar device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206870A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005530163A (en) * | 2002-06-14 | 2005-10-06 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | High frequency signal forming method and forming apparatus for detecting distance to object and / or speed thereof |
-
1981
- 1981-06-12 JP JP9143281A patent/JPS57206870A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005530163A (en) * | 2002-06-14 | 2005-10-06 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | High frequency signal forming method and forming apparatus for detecting distance to object and / or speed thereof |
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