JPS5572881A - Correlation processing counter tolerant of multi-echo disturbance - Google Patents
Correlation processing counter tolerant of multi-echo disturbanceInfo
- Publication number
- JPS5572881A JPS5572881A JP14696478A JP14696478A JPS5572881A JP S5572881 A JPS5572881 A JP S5572881A JP 14696478 A JP14696478 A JP 14696478A JP 14696478 A JP14696478 A JP 14696478A JP S5572881 A JPS5572881 A JP S5572881A
- Authority
- JP
- Japan
- Prior art keywords
- code
- output
- correlation processing
- tolerant
- echo
- 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
Landscapes
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
PURPOSE: To obtain a correlation processing counter tolerant of multi-echo disturbance, by providing a 2nd code generator which generate a ternal signal of a positive, negative or zero level.
CONSTITUTION: In 1st code generator 11, false random code generator 13 generates a false random code synchronizing with pulses from clock pulse generator 12, and this code and clock pulses are exclusively OR-ed 14. Its output C is sent to a transmission line to be measured through modulation part 15. Output C, on the other hand, is branched and then inputted to 2nd code generating part 21 by way of delay circuit 19. Next, logic circuit 23 in generating part 21 adds output C to the output of unit clock delay circuit 22, thereby generating a ternary signal of a positive, negative and zero level. In correlation processing part 24, an arrival signal from measured transmission line 18 is correleated with the output code of 2nd code generating part 21. In this way, a correlation processing measuring unit can be obtained which is tolerant of multi-echo disturbance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14696478A JPS5572881A (en) | 1978-11-27 | 1978-11-27 | Correlation processing counter tolerant of multi-echo disturbance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14696478A JPS5572881A (en) | 1978-11-27 | 1978-11-27 | Correlation processing counter tolerant of multi-echo disturbance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572881A true JPS5572881A (en) | 1980-06-02 |
Family
ID=15419556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14696478A Pending JPS5572881A (en) | 1978-11-27 | 1978-11-27 | Correlation processing counter tolerant of multi-echo disturbance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572881A (en) |
-
1978
- 1978-11-27 JP JP14696478A patent/JPS5572881A/en active Pending
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