FR2271582A1 - Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves - Google Patents

Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves

Info

Publication number
FR2271582A1
FR2271582A1 FR7416418A FR7416418A FR2271582A1 FR 2271582 A1 FR2271582 A1 FR 2271582A1 FR 7416418 A FR7416418 A FR 7416418A FR 7416418 A FR7416418 A FR 7416418A FR 2271582 A1 FR2271582 A1 FR 2271582A1
Authority
FR
France
Prior art keywords
propagate
echoes
surface waves
acoustic surface
low noise
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
FR7416418A
Other languages
French (fr)
Other versions
FR2271582B1 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7416418A priority Critical patent/FR2271582A1/en
Priority to DE2523288A priority patent/DE2523288C3/en
Publication of FR2271582A1 publication Critical patent/FR2271582A1/en
Application granted granted Critical
Publication of FR2271582B1 publication Critical patent/FR2271582B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H03H9/423—Time-delay networks using surface acoustic waves with adjustable delay time
    • 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
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4052—Means for monitoring or calibrating by simulation of echoes
    • 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
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4052—Means for monitoring or calibrating by simulation of echoes
    • G01S7/406—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder
    • G01S7/4065—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder involving a delay line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/38—Time-delay networks with adjustable delay time

Landscapes

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

Abstract

The radar simulators variable delay circuit eliminates fixed echoes or simulates fixed or moving echoes. A delay line (3) is driven from an input signal through a power amplifier (2). It has a number of outputs (4, 5, 6) connected to low noise amplifiers (7, 8, 9). The final output is connected through a power amplifier (12) to a second delay line (11) whose outputs (13, 14, 15) are also connected to low noise amplifiers (16, 17, 18). The low noise amplifier outputs are connected to an electronic switch (10) controlled by a circuit (19) which permits the operator to select remotely a predetermined delay at the output (20) to simulate fixed echoes which can be transformed into moving echoes as required.
FR7416418A 1974-05-13 1974-05-13 Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves Granted FR2271582A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7416418A FR2271582A1 (en) 1974-05-13 1974-05-13 Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves
DE2523288A DE2523288C3 (en) 1974-05-13 1975-05-26 Circuit with quartz delay line for generating variable delays for radar simulator signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7416418A FR2271582A1 (en) 1974-05-13 1974-05-13 Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves
DE2523288A DE2523288C3 (en) 1974-05-13 1975-05-26 Circuit with quartz delay line for generating variable delays for radar simulator signals

Publications (2)

Publication Number Publication Date
FR2271582A1 true FR2271582A1 (en) 1975-12-12
FR2271582B1 FR2271582B1 (en) 1979-07-06

Family

ID=25768940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416418A Granted FR2271582A1 (en) 1974-05-13 1974-05-13 Variable delay device for radar simulator - employs quartz delay lines which propagate using acoustic surface waves

Country Status (2)

Country Link
DE (1) DE2523288C3 (en)
FR (1) FR2271582A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113777565A (en) * 2021-09-02 2021-12-10 上海矽杰微电子有限公司 Miniaturized millimeter wave radar simulation method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112112C1 (en) * 1981-03-27 1982-09-30 Dornier System Gmbh, 7990 Friedrichshafen Test device for a radar device with a synthetic aperture
AT519540B1 (en) * 2016-12-29 2018-10-15 Avl List Gmbh Switching device for a Radielielemulator and Radarzielemulator with such a switching device
AT519538B1 (en) 2016-12-29 2019-05-15 Avl List Gmbh Method and system for the simulation-based determination of echo points as well as methods for emulation and emulation device
AT519539B1 (en) 2016-12-29 2018-10-15 Avl List Gmbh Radar target emulator with a crossfade device and method for crossfading signals
AT520578B1 (en) 2017-10-06 2021-01-15 Avl List Gmbh Device and method for converting a radar signal and test bench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113777565A (en) * 2021-09-02 2021-12-10 上海矽杰微电子有限公司 Miniaturized millimeter wave radar simulation method

Also Published As

Publication number Publication date
FR2271582B1 (en) 1979-07-06
DE2523288A1 (en) 1976-12-02
DE2523288C3 (en) 1978-09-07
DE2523288B2 (en) 1978-01-12

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse