JPS5627672A - Interfering signal remover - Google Patents
Interfering signal removerInfo
- Publication number
- JPS5627672A JPS5627672A JP10379679A JP10379679A JPS5627672A JP S5627672 A JPS5627672 A JP S5627672A JP 10379679 A JP10379679 A JP 10379679A JP 10379679 A JP10379679 A JP 10379679A JP S5627672 A JPS5627672 A JP S5627672A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse width
- gate
- interfering signal
- interfering
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/18—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Noise Elimination (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To prevent the removal of a real echo even if a received signal from a target has time jitter, by providing a pulse width increasing unit which augments a pulse width for a gate signal for removing an interfering signal. CONSTITUTION:A normal video signal is quantized by a comparator 503. The quantized signal is conducted through a pulse width increasing unit 504 and then clock-synchronized by shift registers 505-507 and thereafter delayed by a system clock interval. The signal, whose pulse width is thus increased, is delayed by a time corresponding to a transmitted pulse interval, by an interfering signal detection circuit 509 and sweep memories 510, 511. After that, three signals which are the input and output of the sweep memory 510 and the output of the other sweep memory 511 are applied to a gate signal generation circuit 512 to produce a gate signal for removing an interfering signal. The circuit 512 generates the gate signal so that a normal video signal or the like not removed of a real echo is picked out through video gate circuits 513, 514.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10379679A JPS5627672A (en) | 1979-08-14 | 1979-08-14 | Interfering signal remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10379679A JPS5627672A (en) | 1979-08-14 | 1979-08-14 | Interfering signal remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5627672A true JPS5627672A (en) | 1981-03-18 |
Family
ID=14363352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10379679A Pending JPS5627672A (en) | 1979-08-14 | 1979-08-14 | Interfering signal remover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5627672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61271478A (en) * | 1985-05-27 | 1986-12-01 | Koden Electronics Co Ltd | Target object detector |
-
1979
- 1979-08-14 JP JP10379679A patent/JPS5627672A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61271478A (en) * | 1985-05-27 | 1986-12-01 | Koden Electronics Co Ltd | Target object detector |
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