GB1379863A - Pulse compression radar systems - Google Patents

Pulse compression radar systems

Info

Publication number
GB1379863A
GB1379863A GB374773A GB374773A GB1379863A GB 1379863 A GB1379863 A GB 1379863A GB 374773 A GB374773 A GB 374773A GB 374773 A GB374773 A GB 374773A GB 1379863 A GB1379863 A GB 1379863A
Authority
GB
United Kingdom
Prior art keywords
delay line
pulses
fed
dispersive
receiver
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.)
Expired
Application number
GB374773A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB374773A priority Critical patent/GB1379863A/en
Priority to DE19742402903 priority patent/DE2402903C3/en
Priority to SE7400825A priority patent/SE388053B/en
Priority to IT6719774A priority patent/IT1004785B/en
Priority to FR7402339A priority patent/FR2215627B1/fr
Publication of GB1379863A publication Critical patent/GB1379863A/en
Expired 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
    • G01S13/282—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 a frequency modulated carrier wave

Abstract

1379863 Radar MARCONI CO Ltd 15 Nov 1973 [25 Jan 1973] 3747/73 Heading H4D A receiver for a radar system includes a hard limiter interposed between two dispersive devices, each of which is operative to compress in time received frequency swept signals. A source 16 of clock pulses in transmitter 10, feeds an impulse generator 18 coupled to a dispersive delay line 20. The output of line 20 is a long frequency swept pulse and gate 22, under the control of source 16, limits the duration of the pulse to a required value (20Ás. in the embodiment). The pulses are fed to amplifier 24, frequency changer 26, circulator 12 and aerial 13. The received echo pulses are fed to frequency changer 28 and amplifier 30 of receiver 13. The amplified pulses are then fed to dispersive delay line 32, hard limiter 34, dispersive delay line 36 and weighting filter 38 (the latter reducing range side lobes). Detector 40 provides a video output after suitable amplification and processing. Weighting filter 38 may be placed between limiter 34 and delay line 36. It is stated thatuse of dispersive delay line 32 allows a choice in the receiver false alarm rate (due to noise &c.).
GB374773A 1973-01-25 1973-01-25 Pulse compression radar systems Expired GB1379863A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB374773A GB1379863A (en) 1973-01-25 1973-01-25 Pulse compression radar systems
DE19742402903 DE2402903C3 (en) 1973-01-25 1974-01-22 Constant false frequency receiver for an FM pulse compression radar system
SE7400825A SE388053B (en) 1973-01-25 1974-01-22 RECEIVER WITH CONSTANT FALSE ALARM VALUE
IT6719774A IT1004785B (en) 1973-01-25 1974-01-24 PULSE COMPRESSION RADAR SYSTEM
FR7402339A FR2215627B1 (en) 1973-01-25 1974-01-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB374773A GB1379863A (en) 1973-01-25 1973-01-25 Pulse compression radar systems

Publications (1)

Publication Number Publication Date
GB1379863A true GB1379863A (en) 1975-01-08

Family

ID=9764216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB374773A Expired GB1379863A (en) 1973-01-25 1973-01-25 Pulse compression radar systems

Country Status (4)

Country Link
FR (1) FR2215627B1 (en)
GB (1) GB1379863A (en)
IT (1) IT1004785B (en)
SE (1) SE388053B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128835A (en) * 1982-10-16 1984-05-02 Ferranti Plc Gating arrangement
US4633185A (en) * 1982-10-16 1986-12-30 Ferranti Plc Chirp signal generator for pulse compression radar

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558612A (en) * 1978-10-26 1980-05-01 Kokusai Denshin Denwa Co Ltd <Kdd> Delay circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128835A (en) * 1982-10-16 1984-05-02 Ferranti Plc Gating arrangement
US4633185A (en) * 1982-10-16 1986-12-30 Ferranti Plc Chirp signal generator for pulse compression radar

Also Published As

Publication number Publication date
IT1004785B (en) 1976-07-20
DE2402903A1 (en) 1974-08-15
DE2402903B2 (en) 1976-10-07
FR2215627B1 (en) 1978-09-15
FR2215627A1 (en) 1974-08-23
SE388053B (en) 1976-09-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee