JPS6443784A - Distance decision device for pulse radar - Google Patents
Distance decision device for pulse radarInfo
- Publication number
- JPS6443784A JPS6443784A JP62201143A JP20114387A JPS6443784A JP S6443784 A JPS6443784 A JP S6443784A JP 62201143 A JP62201143 A JP 62201143A JP 20114387 A JP20114387 A JP 20114387A JP S6443784 A JPS6443784 A JP S6443784A
- Authority
- JP
- Japan
- Prior art keywords
- target
- distance
- pulse
- deltam
- kinds
- 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.)
- Granted
Links
- 230000003252 repetitive effect Effects 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To find a correct target distance for the detectable range of a target in fast movement, etc., by selecting two kinds of pulses among repetitive frequency pulses according to a prescribed detectable range. CONSTITUTION:The size and speed of the target are estimated to make a selection 22 of PRF (pulse repetitive frequency) so that DELTAm>r/ctau (C: light speed, tau: pulse width) for the dispersion distance range (r) (detectable range) of the target, where DELTAm is the difference between the ratios m1 and m2 (m1>m2) of two kinds of PRFs and pulse width. At this time, a decision can be made within a distance range below INT(m2/DELTAm).m1ctau [INT(A): integer part of A]. On the other hand, two out of >=3 kinds of PRFs (R, R', R'') are used selectively so as to cope with the presence of a distance where a sample gate can not be set such as the periphery of a sent pulse position. Therefore, a pulse radar distance decision device 21 of this constitution handles the fast movement of the target in a relatively long processing time to perform a correct decision.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62201143A JPS6443784A (en) | 1987-08-12 | 1987-08-12 | Distance decision device for pulse radar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62201143A JPS6443784A (en) | 1987-08-12 | 1987-08-12 | Distance decision device for pulse radar |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6443784A true JPS6443784A (en) | 1989-02-16 |
JPH057667B2 JPH057667B2 (en) | 1993-01-29 |
Family
ID=16436113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62201143A Granted JPS6443784A (en) | 1987-08-12 | 1987-08-12 | Distance decision device for pulse radar |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6443784A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006078284A (en) * | 2004-09-08 | 2006-03-23 | Fujitsu Ltd | Pulse radar system |
JP2008524563A (en) * | 2004-12-18 | 2008-07-10 | ライカ ジオシステムズ アクチェンゲゼルシャフト | Single channel heterodyne distance measurement method |
-
1987
- 1987-08-12 JP JP62201143A patent/JPS6443784A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006078284A (en) * | 2004-09-08 | 2006-03-23 | Fujitsu Ltd | Pulse radar system |
JP2008524563A (en) * | 2004-12-18 | 2008-07-10 | ライカ ジオシステムズ アクチェンゲゼルシャフト | Single channel heterodyne distance measurement method |
Also Published As
Publication number | Publication date |
---|---|
JPH057667B2 (en) | 1993-01-29 |
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Legal Events
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