GB1046318A - Improvements in or relating to pulsed radars - Google Patents

Improvements in or relating to pulsed radars

Info

Publication number
GB1046318A
GB1046318A GB4212865A GB4212865A GB1046318A GB 1046318 A GB1046318 A GB 1046318A GB 4212865 A GB4212865 A GB 4212865A GB 4212865 A GB4212865 A GB 4212865A GB 1046318 A GB1046318 A GB 1046318A
Authority
GB
United Kingdom
Prior art keywords
pulse
pulses
output
filter
amplitude
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
GB4212865A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1046318A publication Critical patent/GB1046318A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration
    • H03K5/06—Shaping pulses by increasing duration; by decreasing duration by the use of delay lines or other analogue delay elements
    • H03K5/065—Shaping pulses by increasing duration; by decreasing duration by the use of delay lines or other analogue delay elements using dispersive delay lines
    • 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

Landscapes

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

Abstract

1,046,318. Pulse radar. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Oct. 5, 1965 [Oct. 17, 1964], No. 42128/65. Heading H4D. The invention relates to a pulse compression or '' chirp " radar, wherein the side lobe pulses (see Fig. 2c, not shown) obtained in practice from the output of the pulse compression filter are much reduced relative to the main control pulse. The transmitted pulse, as well as the echo pulses, is passed through the compression filter E and provides the waveform of Fig. 2c (not shown) having a central narrow pulse in-between two side pulses of appreciable amplitude. A switch S, controlled from the transmitter, is opened during the control pulse, so that only the side pulses pass to a rectifier device B and to an integrator device M to provide a control signal dependent on the average amplitude of the side pulses. The control signal causes an adjusting device OP to send signals on lines X 1- X n to the various stages in the filter E comprising a distortion correction filter, such that the amplitude of the side lobes is much reduced, and single echo pulses can be obtained at output Y 2 . Each stage in the correction filter may have its output fed to two summation devices via weighting potentiometers controlled by the signals on lines X 1 -X n . The outputs of the summation devices may be summed in quadrature to provide the output Y 2 . An artificial echo rather than the transmitted pulse may be used for determining the side pulse amplitudes.
GB4212865A 1964-10-17 1965-10-05 Improvements in or relating to pulsed radars Expired GB1046318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964T0027219 DE1247421B (en) 1964-10-17 1964-10-17 Method for pulse compression of radar pulses and arrangement for carrying out the method

Publications (1)

Publication Number Publication Date
GB1046318A true GB1046318A (en) 1966-10-19

Family

ID=7553337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4212865A Expired GB1046318A (en) 1964-10-17 1965-10-05 Improvements in or relating to pulsed radars

Country Status (2)

Country Link
DE (1) DE1247421B (en)
GB (1) GB1046318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591349B1 (en) * 1967-01-12 1971-03-04 Hollandse Signaalapparaten Bv PULSE RADAR WITH COMPRESSION OF THE ECHO FREQUENCY MODULATED TRANSMIT PULSES
EP0145056A2 (en) * 1983-12-07 1985-06-19 Hollandse Signaalapparaten B.V. Digital pulse compression filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113376434A (en) * 2021-06-07 2021-09-10 电子科技大学 Frequency spectrum analysis method based on chirp transformation architecture and rapid digital pulse pressure algorithm

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150368A (en) * 1963-03-25 1964-09-22 Richard C Price Pulse compression residue blanking

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591349B1 (en) * 1967-01-12 1971-03-04 Hollandse Signaalapparaten Bv PULSE RADAR WITH COMPRESSION OF THE ECHO FREQUENCY MODULATED TRANSMIT PULSES
EP0145056A2 (en) * 1983-12-07 1985-06-19 Hollandse Signaalapparaten B.V. Digital pulse compression filter
EP0145056A3 (en) * 1983-12-07 1985-07-24 Hollandse Signaalapparaten B.V. Digital pulse compression filter
US4673941A (en) * 1983-12-07 1987-06-16 Hollandse Signaalapparaten B.V. Digital pulse compression filter

Also Published As

Publication number Publication date
DE1247421B (en) 1967-08-17

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