FR2422176A1 - Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission - Google Patents

Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission

Info

Publication number
FR2422176A1
FR2422176A1 FR7810249A FR7810249A FR2422176A1 FR 2422176 A1 FR2422176 A1 FR 2422176A1 FR 7810249 A FR7810249 A FR 7810249A FR 7810249 A FR7810249 A FR 7810249A FR 2422176 A1 FR2422176 A1 FR 2422176A1
Authority
FR
France
Prior art keywords
inhibits
during transmission
blind zone
pulses
pulse radar
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
FR7810249A
Other languages
French (fr)
Other versions
FR2422176B1 (en
Inventor
Robert Basard
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications 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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7810249A priority Critical patent/FR2422176A1/en
Priority to DE19792912342 priority patent/DE2912342A1/en
Publication of FR2422176A1 publication Critical patent/FR2422176A1/en
Application granted granted Critical
Publication of FR2422176B1 publication Critical patent/FR2422176B1/fr
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
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • G01S13/284—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses
    • G01S13/288—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses phase modulated

Abstract

A pulse radar device with Doppler evaluation uses the pulse compression principle for evaluation purposes and inhibits receiver operation during transmission. Long pulses are transmitted and the radar 'blind zone' is reduced. Incompletely received pulses are detected and processed separately from completely received pulses. The emitted pulses are modulated with an N-element binary code. Gate circuits are provided for neighbouring distance ranges. Each circuit is associated with a code element. Further circuits for further ranges are each associated with a full pulse. Doppler filters, rectifiers, logic circuits, and correlators are used.
FR7810249A 1978-04-06 1978-04-06 Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission Granted FR2422176A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7810249A FR2422176A1 (en) 1978-04-06 1978-04-06 Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission
DE19792912342 DE2912342A1 (en) 1978-04-06 1979-03-29 PULSE RADAR WITH DOPPLER EVALUATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810249A FR2422176A1 (en) 1978-04-06 1978-04-06 Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission

Publications (2)

Publication Number Publication Date
FR2422176A1 true FR2422176A1 (en) 1979-11-02
FR2422176B1 FR2422176B1 (en) 1984-01-20

Family

ID=9206785

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810249A Granted FR2422176A1 (en) 1978-04-06 1978-04-06 Pulse radar with Doppler evaluation - uses long pulses for blind zone reduction and inhibits receiver during transmission

Country Status (2)

Country Link
DE (1) DE2912342A1 (en)
FR (1) FR2422176A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11313959B2 (en) * 2019-01-29 2022-04-26 The Board Of Regents Of The University Of Oklahoma Methods and apparatus for blind range recovery on pulse compression radars

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044571A (en) * 1979-03-17 1980-10-15 Marconi Co Ltd Pulse radar system
JP6523982B2 (en) * 2016-02-04 2019-06-05 三菱電機株式会社 Target detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11313959B2 (en) * 2019-01-29 2022-04-26 The Board Of Regents Of The University Of Oklahoma Methods and apparatus for blind range recovery on pulse compression radars

Also Published As

Publication number Publication date
FR2422176B1 (en) 1984-01-20
DE2912342A1 (en) 1979-10-18

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse