NL187872B - FILTER FOR THE RECEIVER OF A PULSE DOPPLER RADAR. - Google Patents

FILTER FOR THE RECEIVER OF A PULSE DOPPLER RADAR.

Info

Publication number: NL187872B
Authority: NL; Netherlands
Prior art keywords: receiver; filter; doppler radar; pulse doppler; pulse
Prior art date: 1977-08-12

Application number

NLAANVRAGE7808152,A

Other languages

Dutch (nl)

Other versions

NL7808152A (en

NL187872C (en

Original Assignee

Ericsson Telefon Ab L M

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.)

1977-08-12

Filing date

1978-08-02

Publication date

1991-09-02

1978-08-02 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1979-02-14 Publication of NL7808152A publication Critical patent/NL7808152A/en

1991-09-02 Publication of NL187872B publication Critical patent/NL187872B/en

1992-02-03 Application granted granted Critical

1992-02-03 Publication of NL187872C publication Critical patent/NL187872C/en

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
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/526—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on the whole spectrum without loss of range information, e.g. using delay line cancellers or comb filters

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)
Ultra Sonic Daignosis Equipment (AREA)
Surgical Instruments (AREA)
Sheet Holders (AREA)
Electrotherapy Devices (AREA)

NLAANVRAGE7808152,A 1977-08-12 1978-08-02 FILTER FOR THE RECEIVER OF A PULSE DOPPLER RADAR. NL187872C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE7709119A SE409148B (en)	1977-08-12	1977-08-12	FILTER DEVICE INCLUDED IN THE RECEIVER OF A PULSE DOPPER RADAR

Publications (3)

Publication Number	Publication Date
NL7808152A NL7808152A (en)	1979-02-14
NL187872B true NL187872B (en)	1991-09-02
NL187872C NL187872C (en)	1992-02-03

Family

ID=20331986

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7808152,A NL187872C (en)	1977-08-12	1978-08-02	FILTER FOR THE RECEIVER OF A PULSE DOPPLER RADAR.

Country Status (10)

Country	Link
CH (1)	CH632850A5 (en)
DE (1)	DE2833050C2 (en)
DK (1)	DK147428C (en)
FI (1)	FI65863C (en)
FR (1)	FR2400212A1 (en)
GB (1)	GB2002617B (en)
IT (1)	IT1098359B (en)
NL (1)	NL187872C (en)
NO (1)	NO145964C (en)
SE (1)	SE409148B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2632420B1 (en) *	1987-10-16	1990-10-12	Thomson Csf	METHOD AND DEVICE FOR COMPENSATING THE SPEED OF CLOUD IN A COHERENT DOPPLER RADAR AT AMBIGUOUS VARIABLE SPEED
DE19654769A1 (en) *	1996-12-30	1998-07-02	Teves Gmbh Alfred	Method and device for vehicle control or regulation
US6049302A (en) *	1999-05-04	2000-04-11	Boeing North American	Pulsed doppler radar system with small intermediate frequency filters
GB0301614D0 (en) *	2003-01-24	2013-05-08	Qinetiq Ltd	Target visibility enhancement system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3742500A (en) *	1970-08-24	1973-06-26	Raytheon Co	Mti radar
IT950144B (en) *	1971-03-17	1973-06-20	Int Standard Electric Corp	SYSTEM FOR ELIMINATION OF THE SPEED OF ECHOES OF NOISE ADAPTABLE FOR A DIGITAL PULSE SYSTEM MOBILE TARGET INDICATOR
US3962704A (en) *	1974-05-31	1976-06-08	Hughes Aircraft Company	Moving target indicator clutter tracker
US4035799A (en) *	1975-11-04	1977-07-12	The United States Of America As Represented By The Secretary Of The Navy	Digital mean clutter doppler compensation system

1977
- 1977-08-12 SE SE7709119A patent/SE409148B/en not_active IP Right Cessation
1978
- 1978-07-24 GB GB7830900A patent/GB2002617B/en not_active Expired
- 1978-07-26 FR FR7822113A patent/FR2400212A1/en active Granted
- 1978-07-27 DE DE2833050A patent/DE2833050C2/en not_active Expired
- 1978-07-28 FI FI782352A patent/FI65863C/en not_active IP Right Cessation
- 1978-08-02 NL NLAANVRAGE7808152,A patent/NL187872C/en not_active IP Right Cessation
- 1978-08-10 IT IT26665/78A patent/IT1098359B/en active
- 1978-08-11 CH CH855578A patent/CH632850A5/en not_active IP Right Cessation
- 1978-08-11 NO NO782748A patent/NO145964C/en unknown
- 1978-08-11 DK DK356178A patent/DK147428C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
SE409148B (en)	1979-07-30
FR2400212B1 (en)	1984-12-28
DK147428C (en)	1985-02-11
DK147428B (en)	1984-07-30
FI782352A (en)	1979-02-13
NO145964C (en)	1982-06-30
SE7709119L (en)	1979-02-13
DE2833050C2 (en)	1986-08-07
FI65863C (en)	1984-07-10
NO145964B (en)	1982-03-22
FI65863B (en)	1984-03-30
GB2002617B (en)	1982-02-10
IT7826665A0 (en)	1978-08-10
CH632850A5 (en)	1982-10-29
NL7808152A (en)	1979-02-14
GB2002617A (en)	1979-02-21
NL187872C (en)	1992-02-03
IT1098359B (en)	1985-09-07
DE2833050A1 (en)	1979-03-01
FR2400212A1 (en)	1979-03-09
DK356178A (en)	1979-02-13
NO782748L (en)	1979-02-13

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Legal Events

Date	Code	Title	Description
1985-01-01	A85	Still pending on 85-01-01
1985-09-02	BA	A request for search or an international-type search has been filed
1985-10-01	BB	A search report has been drawn up
1985-11-01	BC	A request for examination has been filed
1998-10-01	V4	Discontinued because of reaching the maximum lifetime of a patent	Free format text: 980802