JPS6423187A - Data detector for identification of moving body - Google Patents
Data detector for identification of moving bodyInfo
- Publication number
- JPS6423187A JPS6423187A JP62179474A JP17947487A JPS6423187A JP S6423187 A JPS6423187 A JP S6423187A JP 62179474 A JP62179474 A JP 62179474A JP 17947487 A JP17947487 A JP 17947487A JP S6423187 A JPS6423187 A JP S6423187A
- Authority
- JP
- Japan
- Prior art keywords
- output
- orthogonal
- transponder
- comparator
- inputted
- 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
- 238000001514 detection method Methods 0.000 abstract 6
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To reduce an SN ratio and to perform excellent data detection by providing an oscillator, an antenna, an orthogonal demodulator, a comparator, a data detector, etc. CONSTITUTION:A microwave signal generated by the oscillator 23 is amplified 34, passed through a circulator 22, and sent from an antenna 21 to the transponder of a moving body. The signal reflected or absorbed by the transponder is received again by the antenna 21 and inputted to the orthogonal demodulator 25 through the circulator 22. A signal subjected to orthogonal homodyne detection is amplified 29 and 30 and inputted to level detectors 33 and 34 through LPFs 31 and 32 and the levels of an in-phase detection output and an orthogonal phase detection output and compared 35. The output of one of the LPFs 31 and 32 is inputted to an analog switch 36 controlled by a comparator 35, a larger level detected value is outputted according to the comparison output of the comparator 35, and a data detector 37 detects the data from the transponder. Thus, noise components of the other detection output are not added, so excellent data detection is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179474A JPS6423187A (en) | 1987-07-17 | 1987-07-17 | Data detector for identification of moving body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179474A JPS6423187A (en) | 1987-07-17 | 1987-07-17 | Data detector for identification of moving body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423187A true JPS6423187A (en) | 1989-01-25 |
Family
ID=16066478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62179474A Pending JPS6423187A (en) | 1987-07-17 | 1987-07-17 | Data detector for identification of moving body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08248124A (en) * | 1995-03-11 | 1996-09-27 | Nec Corp | Fmcw radar equipment |
-
1987
- 1987-07-17 JP JP62179474A patent/JPS6423187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08248124A (en) * | 1995-03-11 | 1996-09-27 | Nec Corp | Fmcw radar equipment |
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