JPS6438680A - Apparatus for judging frequency agility signal - Google Patents
Apparatus for judging frequency agility signalInfo
- Publication number
- JPS6438680A JPS6438680A JP4600587A JP4600587A JPS6438680A JP S6438680 A JPS6438680 A JP S6438680A JP 4600587 A JP4600587 A JP 4600587A JP 4600587 A JP4600587 A JP 4600587A JP S6438680 A JPS6438680 A JP S6438680A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- input
- autocorrelation coefficient
- judge
- operation circuit
- 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)
Abstract
PURPOSE:To accurately judge an agility cycle, by inputting the autocorrelation coefficient of an input pulse system and known radar frequency data to a judge means. CONSTITUTION:At first, the autocorrelation coefficient calculated by the k-th (k=1, 2...n) autocorrelation coefficient calculation circuit 4-k is sent to an operation circuit 6. The data calculated by the autocorrelation coefficient calculation circuit 4-1 is registered as the coefficient of a primary polynomial expression and, in the same way, the data calculated by the autocorrelation coefficient calculation circuit 4-i is successively registered as the coefficient of the i-order polynomial expression. The frequency data in the known radar of an objective radar frequency memory circuit 5 is successively sent to an operation circuit 6 as input and the operation circuit 6 calculates the value of the polynomial expression with respect to said input to send the result to a judge circuit 7. The judge circuit 7 judges that the input frequency component from the operation circuit 6 is possessed by an arrival pulse system when the operation result is received in a prescribed value or less with respect to the input from the operation circuit 6. By this method, a more accurate frequency characteristic can be drawn out within a short observation time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4600587A JPS6438680A (en) | 1987-02-26 | 1987-02-26 | Apparatus for judging frequency agility signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4600587A JPS6438680A (en) | 1987-02-26 | 1987-02-26 | Apparatus for judging frequency agility signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438680A true JPS6438680A (en) | 1989-02-08 |
Family
ID=12734954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4600587A Pending JPS6438680A (en) | 1987-02-26 | 1987-02-26 | Apparatus for judging frequency agility signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438680A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010093062A1 (en) | 2009-02-13 | 2010-08-19 | Fujifilm Corporation | Organic electroluminescence device, and method for producing the same |
-
1987
- 1987-02-26 JP JP4600587A patent/JPS6438680A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010093062A1 (en) | 2009-02-13 | 2010-08-19 | Fujifilm Corporation | Organic electroluminescence device, and method for producing the same |
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