SE8703019D0 - receiver - Google Patents

receiver

Info

Publication number
SE8703019D0
SE8703019D0 SE8703019A SE8703019A SE8703019D0 SE 8703019 D0 SE8703019 D0 SE 8703019D0 SE 8703019 A SE8703019 A SE 8703019A SE 8703019 A SE8703019 A SE 8703019A SE 8703019 D0 SE8703019 D0 SE 8703019D0
Authority
SE
Sweden
Prior art keywords
interference
pulse
pulses
impulsive
predetermined
Prior art date
Application number
SE8703019A
Other languages
Swedish (sv)
Other versions
SE8703019L (en
Inventor
N C T Coote
Original Assignee
Plessey Overseas
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 Plessey Overseas filed Critical Plessey Overseas
Publication of SE8703019D0 publication Critical patent/SE8703019D0/en
Publication of SE8703019L publication Critical patent/SE8703019L/en

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
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • G01S7/2928—Random or non-synchronous interference pulse cancellers

Landscapes

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

Abstract

A clutter-reducing digital filter 6 spreads out impulsive interference making it difficult to recognise the presence of impulsive interference. To solve this a buffer store 8 stores a predetermined number of filtered echo pulses and pattern recognition means 10 responsive to the stored pulses contemporaneously for recognises a predetermined pulse amplitude pattern which signifies the presence of an interference pulse. A feedback cancellation operation 11, 13 suppresses the interference pulse. <IMAGE>
SE8703019A 1985-10-09 1987-07-31 receiver SE8703019L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8524883A GB2261787B (en) 1985-10-09 1985-10-09 Improvements in and relating to receiver systems

Publications (2)

Publication Number Publication Date
SE8703019D0 true SE8703019D0 (en) 1987-07-31
SE8703019L SE8703019L (en) 1993-04-29

Family

ID=10586404

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8703019A SE8703019L (en) 1985-10-09 1987-07-31 receiver

Country Status (4)

Country Link
DE (1) DE3644892A1 (en)
GB (1) GB2261787B (en)
IT (1) IT1237562B (en)
SE (1) SE8703019L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120256778A1 (en) * 2003-07-02 2012-10-11 M/A Com, Inc. Short-range vehicular radar system
US6870502B1 (en) * 2003-08-29 2005-03-22 Raytheon Company Advanced asynchronous pulse detector
GB2437589B (en) 2006-02-14 2009-12-16 Furuno Electric Co Navigational aid and carrier sense technique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE360931B (en) * 1972-02-28 1973-10-08 Philips Svenska Ab
US4068233A (en) * 1976-08-13 1978-01-10 Raytheon Company Radar system having interference rejection

Also Published As

Publication number Publication date
GB2261787B (en) 1993-10-06
IT1237562B (en) 1993-06-08
GB8524883D0 (en) 1993-01-27
DE3644892A1 (en) 1993-07-08
SE8703019L (en) 1993-04-29
GB2261787A (en) 1993-05-26

Similar Documents

Publication Publication Date Title
DE69128221D1 (en) Acoustic adaptive device for canceling noise signals.
IT8021965A0 (en) ECHO CANCELLATION DEVICE EQUIPPED WITH A HIGH PASS FILTER.
DE69110700D1 (en) Acoustic subband echo canceller.
DE68924261D1 (en) Echo cancellation device with adaptation of the echo cancellation coefficients during full duplex transmission.
NO872725D0 (en) REMOTE CONTROLLABLE PARAVANE.
DE3883901D1 (en) Radar with sea echo suppression.
DE3260760D1 (en) Pop-up armed suture
FR2682774B1 (en) ACOUSTIC EMISSION DEVICE FOR SEISMIC MARINE.
DE69022641D1 (en) Adaptive echo canceller.
FR2683413B1 (en) AN ECHO CANCELLER.
JPS5781743A (en) Pulse pattern recognition device
GB9126210D0 (en) Pulse signal generators
JPS5757042A (en) Echo cancelling device
JPS5726769A (en) Ultrasonic scanner
EP0472121A3 (en) Signal adaptive beam scan velocity modulation
JPS579439A (en) Ultrasonic scanner
DE3887821D1 (en) Echo canceller.
DE58902677D1 (en) WAVE GUIDE ARRANGEMENT.
JPS5783936A (en) Echo cancelling device
DE3380100D1 (en) Device for the determination of the distance of an area illuminated by a pulse laser
SE8703019D0 (en) receiver
DE3887057D1 (en) Adaptive echo canceller with double speech recognition.
JPS56158975A (en) Ultrasonic scanner employing conical transducer
GB2255180B (en) In-the-hull-mount for an underwater transducer assembly
JPS5757541A (en) Ultrasonic scanning probe

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8703019-3

Effective date: 19940501

Format of ref document f/p: F