JPS5551376A - Fm ranging system for pulse doppler radar - Google Patents

Fm ranging system for pulse doppler radar

Info

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
Application number
JP12528678A
Other languages
Japanese (ja)
Inventor
Natsuki Kondo
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12528678A priority Critical patent/JPS5551376A/en
Publication of JPS5551376A publication Critical patent/JPS5551376A/en
Pending legal-status Critical Current

Links

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
JP12528678A 1978-10-12 1978-10-12 Fm ranging system for pulse doppler radar Pending JPS5551376A (en)

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 (2)

* Cited by examiner, † Cited by third party
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831894A (en) * 1971-08-30 1973-04-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831894A (en) * 1971-08-30 1973-04-26

Cited By (2)

* Cited by examiner, † Cited by third party
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

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