JPS6350777A - Synthetic aperture radar apparatus - Google Patents

Synthetic aperture radar apparatus

Info

Publication number
JPS6350777A
JPS6350777A JP61195075A JP19507586A JPS6350777A JP S6350777 A JPS6350777 A JP S6350777A JP 61195075 A JP61195075 A JP 61195075A JP 19507586 A JP19507586 A JP 19507586A JP S6350777 A JPS6350777 A JP S6350777A
Authority
JP
Japan
Prior art keywords
signal
pulse
transmission
frequency
receiving
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
JP61195075A
Other languages
Japanese (ja)
Inventor
Motoharu Fukai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP61195075A priority Critical patent/JPS6350777A/en
Publication of JPS6350777A publication Critical patent/JPS6350777A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain various distance resolving powers by predetermined BPF at a receiving time, by changing the band width of a transmission signal corresponding to desired distance resolving power.
CONSTITUTION: The frequency of a reference clock signal is divided into transmission pulse frequency in a control part 2 and an impulse gate signal G of a predetermined pulse width is sent out to a charp pulse generating circuit 1. Further, counting is performed in the timing of the signal G to also send out a gate signal G1 rising and falling at a predetermined delay time to the generating part 1. Furthermore, control signals S1, S2 for cutting off the frequency component corresponding to the signal band with of the signal G11 are sent out to a receiving part 6. The generating part 1 transmits a transmission charp pulse P changing the signal band width corresponding to desired distance resolving power through a transmission part 3 and an antenna part 5. The receiving part 6 receives the receiving signal from an isolator 4 and selects BPF corresponding to the signal band of the pulse P on the basis of the signals S1, S2 to supply the output signal thereof to a signal processing system. At this time, by changing the pulse width of the signal G11 of the control part 2 by the variable order from the outside, the frequency band width of the pulse P is changed to obtain various resolving powers.
COPYRIGHT: (C)1988,JPO&Japio
JP61195075A 1986-08-20 1986-08-20 Synthetic aperture radar apparatus Pending JPS6350777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61195075A JPS6350777A (en) 1986-08-20 1986-08-20 Synthetic aperture radar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61195075A JPS6350777A (en) 1986-08-20 1986-08-20 Synthetic aperture radar apparatus

Publications (1)

Publication Number Publication Date
JPS6350777A true JPS6350777A (en) 1988-03-03

Family

ID=16335134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61195075A Pending JPS6350777A (en) 1986-08-20 1986-08-20 Synthetic aperture radar apparatus

Country Status (1)

Country Link
JP (1) JPS6350777A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212791A (en) * 1989-02-10 1990-08-23 Honda Motor Co Ltd Fm-cw radar
JPH075248A (en) * 1993-03-09 1995-01-10 Hughes Missile Syst Co Three-dimensional image radar
JP2010187098A (en) * 2009-02-10 2010-08-26 Mitsubishi Electric Corp Frequency synthesizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212791A (en) * 1989-02-10 1990-08-23 Honda Motor Co Ltd Fm-cw radar
JPH075248A (en) * 1993-03-09 1995-01-10 Hughes Missile Syst Co Three-dimensional image radar
JP2010187098A (en) * 2009-02-10 2010-08-26 Mitsubishi Electric Corp Frequency synthesizer

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