JPS568921A - Signal detector - Google Patents
Signal detectorInfo
- Publication number
- JPS568921A JPS568921A JP8604479A JP8604479A JPS568921A JP S568921 A JPS568921 A JP S568921A JP 8604479 A JP8604479 A JP 8604479A JP 8604479 A JP8604479 A JP 8604479A JP S568921 A JPS568921 A JP S568921A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- leading
- pulse
- pri
- following
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/19—Monitoring patterns of pulse trains
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Manipulation Of Pulses (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To detect the number of pulses following one leading pulse by judging an n-let PRI (Pulse Repetition Interval) pattern signal in real time from the frequency distribution of pulses to time intervals. CONSTITUTION:From a string of pusles input to input terminal 1, a leading pulse with an assigned pulse interval is extracted by using the 1st PRI filter circuit 3. Similarly, the 2nd PRI filter 4 is used to extract pulses following the leading pulse. Here, the number of pulses input within a certain time is denoted as Z, the number of the leading pulses within the certain time is denoted as X, and the number of pulses following the leading pulses is as Y. Then, number N of pulses following one leading pulse is found from N=Y/X. Then, when Z<=S1, X+Y>=Z.S2 and N>=1 for the 1st normal value S1 and the 2nd normal value S2 (<=1), an n-let type PRI pattern signal is judged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604479A JPS568921A (en) | 1979-07-04 | 1979-07-04 | Signal detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604479A JPS568921A (en) | 1979-07-04 | 1979-07-04 | Signal detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS568921A true JPS568921A (en) | 1981-01-29 |
Family
ID=13875669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8604479A Pending JPS568921A (en) | 1979-07-04 | 1979-07-04 | Signal detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS568921A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5961312A (en) * | 1996-02-14 | 1999-10-05 | Nkk Corporation | Combustion burner and combustion method thereof in furnace |
-
1979
- 1979-07-04 JP JP8604479A patent/JPS568921A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5961312A (en) * | 1996-02-14 | 1999-10-05 | Nkk Corporation | Combustion burner and combustion method thereof in furnace |
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