JPS57125868A - Side looking aperture radar - Google Patents

Side looking aperture radar

Info

Publication number
JPS57125868A
JPS57125868A JP56012770A JP1277081A JPS57125868A JP S57125868 A JPS57125868 A JP S57125868A JP 56012770 A JP56012770 A JP 56012770A JP 1277081 A JP1277081 A JP 1277081A JP S57125868 A JPS57125868 A JP S57125868A
Authority
JP
Japan
Prior art keywords
width
antenna
signal
observation
theta
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
JP56012770A
Other languages
Japanese (ja)
Inventor
Susumu Nishida
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56012770A priority Critical patent/JPS57125868A/en
Publication of JPS57125868A publication Critical patent/JPS57125868A/en
Pending legal-status Critical Current

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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To use a small-size antenna of <=0.5lambda/theta aperture length to perform a high-resolution observation, by taking out only data corresponding to the observation width of a range narrower than the beam radiation width and processing the signal. CONSTITUTION:The radar pulse signal from a transmitter 11 is radiated to a part to be observed such as a ground surface E with a radiation width A through a circulator 12 and the first antenna 13. The antenna 13 has a unidirectional pattern and has <=0.5lambda/theta aperture length L (lambda is the wavelength of radio waves, and theta is the coverage angle of observation width B from the antenna). Reflected wave of a radio wave radiated from the antenna 13 is detected through the circulator 12 by a receiver 14. The signal of a part corresponding to the observation width B in the detection signal is taken out in a gate circuit 15 by a sampling pulse having a time width corresponding to the observation width B from a timing circuit 16. This signal is supplied to a data recorder 20 or a data transmitter 21 through an A/D converter 17, a data speed converter 18, and a switch 19.
JP56012770A 1981-01-30 1981-01-30 Side looking aperture radar Pending JPS57125868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012770A JPS57125868A (en) 1981-01-30 1981-01-30 Side looking aperture radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012770A JPS57125868A (en) 1981-01-30 1981-01-30 Side looking aperture radar

Publications (1)

Publication Number Publication Date
JPS57125868A true JPS57125868A (en) 1982-08-05

Family

ID=11814633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012770A Pending JPS57125868A (en) 1981-01-30 1981-01-30 Side looking aperture radar

Country Status (1)

Country Link
JP (1) JPS57125868A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064281A (en) * 1983-09-20 1985-04-12 Natl Space Dev Agency Japan<Nasda> Synthetic aperture radar equipment
JPS61131679U (en) * 1985-02-05 1986-08-16
JPS63122982A (en) * 1986-11-13 1988-05-26 Nec Corp Synthetic aperture radar
JP2009294210A (en) * 2008-06-03 2009-12-17 Astrium Gmbh Method for optimizing the operation of an active lateral-view sensor when the height above the surface to be detected is variable
CN105378435A (en) * 2013-07-09 2016-03-02 菲尼克斯电气公司 Measuring transducer for converting an analogue electrical input signal into an analog electrical output signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138782A (en) * 1974-04-23 1975-11-05
JPS54146590A (en) * 1978-05-09 1979-11-15 Mitsubishi Electric Corp Radar device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138782A (en) * 1974-04-23 1975-11-05
JPS54146590A (en) * 1978-05-09 1979-11-15 Mitsubishi Electric Corp Radar device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064281A (en) * 1983-09-20 1985-04-12 Natl Space Dev Agency Japan<Nasda> Synthetic aperture radar equipment
JPH0260149B2 (en) * 1983-09-20 1990-12-14 Nat Space Dev Agency
JPS61131679U (en) * 1985-02-05 1986-08-16
JPS63122982A (en) * 1986-11-13 1988-05-26 Nec Corp Synthetic aperture radar
JP2009294210A (en) * 2008-06-03 2009-12-17 Astrium Gmbh Method for optimizing the operation of an active lateral-view sensor when the height above the surface to be detected is variable
CN105378435A (en) * 2013-07-09 2016-03-02 菲尼克斯电气公司 Measuring transducer for converting an analogue electrical input signal into an analog electrical output signal

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