JPS5523451A - Compressor for radar beam - Google Patents

Compressor for radar beam

Info

Publication number
JPS5523451A
JPS5523451A JP9619178A JP9619178A JPS5523451A JP S5523451 A JPS5523451 A JP S5523451A JP 9619178 A JP9619178 A JP 9619178A JP 9619178 A JP9619178 A JP 9619178A JP S5523451 A JPS5523451 A JP S5523451A
Authority
JP
Japan
Prior art keywords
signal
square
multiplication
law
antenna
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
Application number
JP9619178A
Other languages
Japanese (ja)
Other versions
JPS6252267B2 (en
Inventor
Tsutomu Suzuki
Michio Hara
Keisuke Hattori
Senkei Uchima
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.)
Koden Electronics Co Ltd
Original Assignee
Koden Electronics 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 Koden Electronics Co Ltd filed Critical Koden Electronics Co Ltd
Priority to JP9619178A priority Critical patent/JPS5523451A/en
Publication of JPS5523451A publication Critical patent/JPS5523451A/en
Publication of JPS6252267B2 publication Critical patent/JPS6252267B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
    • H01Q21/296—Multiplicative arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To improve a minor lobe and also to stress or soften an image by a multiplication signal, of reception signals from a main antenna and auxiliary antenna, by adding the multiplication signal to a square-law signal of a reception signal from the main antenna. CONSTITUTION:Reception signals from main antenna 1 and auxiliary antenna 2 are respectively extracted from main intermediate amplifier 3 and auxiliary intermediate amplifier 4 sharing local oscillator 5 and multiplied each other by multiplier 6 to obtain multiplication signal 10. A reception signal from main antenna 1, on the other hand, is extracted from main intermediate amplifier 3 and inputted to multiplier 7 to obtain square-law signal 11. Square-law signal 11 is passed through attenuator 9 and added by adder 8 to multiplication signal 10 with its beam width compressed, thereby obtaining output signal 12. An amplitude ratio of multiplication signal 10 to square-law signal 11 is determined by attenuator 9. In this way, the improvement of the minor lobe and the stressing or softening of an image by the multiplication signal are carried out, so that a small target close to a large target at the same distance will never be missed.
JP9619178A 1978-08-09 1978-08-09 Compressor for radar beam Granted JPS5523451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9619178A JPS5523451A (en) 1978-08-09 1978-08-09 Compressor for radar beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9619178A JPS5523451A (en) 1978-08-09 1978-08-09 Compressor for radar beam

Publications (2)

Publication Number Publication Date
JPS5523451A true JPS5523451A (en) 1980-02-19
JPS6252267B2 JPS6252267B2 (en) 1987-11-04

Family

ID=14158403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9619178A Granted JPS5523451A (en) 1978-08-09 1978-08-09 Compressor for radar beam

Country Status (1)

Country Link
JP (1) JPS5523451A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565239A2 (en) * 1992-04-10 1993-10-13 National Space Development Agency Of Japan Beam compression process for the antenna pattern of antennas
EP0602800A1 (en) * 1992-12-15 1994-06-22 National Space Development Agency Of Japan Beam compression method for radar antenna patterns
EP0624917A2 (en) * 1993-05-10 1994-11-17 National Space Development Agency Of Japan Method of performing beam compression of radar antenna patterns

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565239A2 (en) * 1992-04-10 1993-10-13 National Space Development Agency Of Japan Beam compression process for the antenna pattern of antennas
EP0565239A3 (en) * 1992-04-10 1994-08-24 Nat Space Dev Agency Beam compression process for the antenna pattern of antennas
EP0602800A1 (en) * 1992-12-15 1994-06-22 National Space Development Agency Of Japan Beam compression method for radar antenna patterns
EP0624917A2 (en) * 1993-05-10 1994-11-17 National Space Development Agency Of Japan Method of performing beam compression of radar antenna patterns
EP0624917A3 (en) * 1993-05-10 1996-12-11 Nat Space Dev Agency Method of performing beam compression of radar antenna patterns.

Also Published As

Publication number Publication date
JPS6252267B2 (en) 1987-11-04

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