JPS5551376A - Fm ranging system for pulse doppler radar - Google Patents
Fm ranging system for pulse doppler radarInfo
- Publication number
- JPS5551376A JPS5551376A JP12528678A JP12528678A JPS5551376A JP S5551376 A JPS5551376 A JP S5551376A JP 12528678 A JP12528678 A JP 12528678A JP 12528678 A JP12528678 A JP 12528678A JP S5551376 A JPS5551376 A JP S5551376A
- Authority
- JP
- Japan
- Prior art keywords
- velocity
- time
- frequency
- modulation
- received
- 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 obtain an accurate distance information for the target without any effect of the spurious by obtaining the target information respectively within the time when the transmission frequency is constant as well as within the time when the tansmission frequency receives the linear FM modulation.
CONSTITUTION: Signal generator 2 and transmitter 3 generate alternately the CW signal featuring the constant frequency and the CW signal received the FM modulation each for transmission after the pulse modulation. Here the reflected wave from the target is received at the reception circuit comprising IF oscillators 6 and 8 plus SSF7 and within the time when the transmission frequency is constant. This reflected wave is measured at velocity filter circuit 11 to obtain the velocity information. At the same time, the reflected wave is received within the time when the transmission frequency received the FM modulation and then measured at velocity filter 11 to obtain the frequency containing the velocity and distance information. Then using the velocity information obtained previously, radar processor 1 carries out an operation to extract only the distance information. In such way, an accurate distance information can be obtained without any effect of the spurious.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528678A JPS5551376A (en) | 1978-10-12 | 1978-10-12 | Fm ranging system for pulse doppler radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528678A JPS5551376A (en) | 1978-10-12 | 1978-10-12 | Fm ranging system for pulse doppler radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5551376A true JPS5551376A (en) | 1980-04-15 |
Family
ID=14906308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12528678A Pending JPS5551376A (en) | 1978-10-12 | 1978-10-12 | Fm ranging system for pulse doppler radar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5551376A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436302A2 (en) * | 1990-01-03 | 1991-07-10 | Canadian Marconi Company | Integrated altimeter and doppler velocity sensor arrangement |
| RU2692912C1 (en) * | 2018-02-13 | 2019-07-01 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Method for simultaneous measurement of range, speed and acceleration of low-speed maneuvering air target in pulse-doppler radar stations with high frequency of repetition of pulses and linear frequency modulation |
| JP2020085867A (en) * | 2018-11-30 | 2020-06-04 | 株式会社リコー | Distance velocity measurement device and distance velocity measurement method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831894A (en) * | 1971-08-30 | 1973-04-26 |
-
1978
- 1978-10-12 JP JP12528678A patent/JPS5551376A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831894A (en) * | 1971-08-30 | 1973-04-26 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436302A2 (en) * | 1990-01-03 | 1991-07-10 | Canadian Marconi Company | Integrated altimeter and doppler velocity sensor arrangement |
| RU2692912C1 (en) * | 2018-02-13 | 2019-07-01 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Method for simultaneous measurement of range, speed and acceleration of low-speed maneuvering air target in pulse-doppler radar stations with high frequency of repetition of pulses and linear frequency modulation |
| JP2020085867A (en) * | 2018-11-30 | 2020-06-04 | 株式会社リコー | Distance velocity measurement device and distance velocity measurement method |
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