JPS5614967A - Automatic gain control circuit of radar receiver - Google Patents

Automatic gain control circuit of radar receiver

Info

Publication number
JPS5614967A
JPS5614967A JP9244779A JP9244779A JPS5614967A JP S5614967 A JPS5614967 A JP S5614967A JP 9244779 A JP9244779 A JP 9244779A JP 9244779 A JP9244779 A JP 9244779A JP S5614967 A JPS5614967 A JP S5614967A
Authority
JP
Japan
Prior art keywords
output
gain
control circuit
counters
threshold
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
JP9244779A
Other languages
Japanese (ja)
Other versions
JPS6252268B2 (en
Inventor
Haruo Akagi
Takashi Kawaai
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.)
Mitsubishi Electric Corp
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 JP9244779A priority Critical patent/JPS5614967A/en
Publication of JPS5614967A publication Critical patent/JPS5614967A/en
Publication of JPS6252268B2 publication Critical patent/JPS6252268B2/ja
Granted 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/34—Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control

Landscapes

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

Abstract

PURPOSE:To cope even with a high speed change of the gain such as a change of the gain for each transmitting pulse repetition period by making up an open loop control circuit so that the control error may become a prescribed value within time of the pulse width of a pilot pulse signal. CONSTITUTION:When the signal level of the pilot pulse is fed to the circuit at a prescribed threshold Vr or less, a control circuit 17 makes counters 18, 19 be in an up-count state, and operates and halts them 18, 19 respectively. The counter 18 performs a rough counting by means of a clock pulse 21, and increases the gains of both a D/A converter 20 and an IF amplifier 11 and the output Vd of a detector 12. When the output Vd exceeds the threshold Vr, the counters 18, 19 are linked to each other to perform a minute counting, and the output Vd is decreased. When the output Vd exceeds the threshold Vr again, the counters 18, 19 are halted to keep the gain constant. And the control error becomes a value as much as the minute counting step by the linked operation of both the cunters 18, 19. In this way, the device can be made cope even with a high speed change of the gain.
JP9244779A 1979-07-18 1979-07-18 Automatic gain control circuit of radar receiver Granted JPS5614967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9244779A JPS5614967A (en) 1979-07-18 1979-07-18 Automatic gain control circuit of radar receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9244779A JPS5614967A (en) 1979-07-18 1979-07-18 Automatic gain control circuit of radar receiver

Publications (2)

Publication Number Publication Date
JPS5614967A true JPS5614967A (en) 1981-02-13
JPS6252268B2 JPS6252268B2 (en) 1987-11-04

Family

ID=14054653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9244779A Granted JPS5614967A (en) 1979-07-18 1979-07-18 Automatic gain control circuit of radar receiver

Country Status (1)

Country Link
JP (1) JPS5614967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110076A (en) * 1984-11-02 1986-05-28 Mitsubishi Electric Corp Radar receiver
JPS6252476A (en) * 1985-08-30 1987-03-07 Mitsubishi Electric Corp Agc circuit of radar deceiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110076A (en) * 1984-11-02 1986-05-28 Mitsubishi Electric Corp Radar receiver
JPS6252476A (en) * 1985-08-30 1987-03-07 Mitsubishi Electric Corp Agc circuit of radar deceiver

Also Published As

Publication number Publication date
JPS6252268B2 (en) 1987-11-04

Similar Documents

Publication Publication Date Title
GB1306067A (en)
JPS5614967A (en) Automatic gain control circuit of radar receiver
JPS57192876A (en) Measuring device for average frequency
JPS5565168A (en) Agc system for radar receiver
JPS5315040A (en) Automatic unit
JPS55115102A (en) Control unit
JPS56100596A (en) Howling suppression control device
JPS5614968A (en) Automatic gain control circuit of radar receiver
JPS5679510A (en) Automatic gain control circuit
GB1176556A (en) Improvements in Digital Differentiators
JPS57142040A (en) Variable equalizing system
JPS52120661A (en) Automatic frequency control unit
JPS53110352A (en) Automatic gain control circuit
JPS5276586A (en) Automatic control unit
JPS566516A (en) Automatic gain control circuit
JPS552927A (en) Automatic time correction device
JPS5382152A (en) Sampling circuit
SU1012422A1 (en) Device for automatic regulating of amplification factor
JPS5797379A (en) Speed controlling device for motor
JPS5341683A (en) Sampling control system
JPS5663611A (en) Negative feedback control unit
JPS53139912A (en) Audio detector of adaptive type
GB889413A (en) Automatic calibration system
JPS5764804A (en) Digital servo system
JPS5314280A (en) Control system