JPS63275976A - Radar equipment - Google Patents

Radar equipment

Info

Publication number
JPS63275976A
JPS63275976A JP62111143A JP11114387A JPS63275976A JP S63275976 A JPS63275976 A JP S63275976A JP 62111143 A JP62111143 A JP 62111143A JP 11114387 A JP11114387 A JP 11114387A JP S63275976 A JPS63275976 A JP S63275976A
Authority
JP
Japan
Prior art keywords
band signal
signal
frequency
repeated
reflected
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
JP62111143A
Other languages
Japanese (ja)
Other versions
JP2550574B2 (en
Inventor
Noriyuki Tomioka
Hiromasa Katou
Original Assignee
Nippon Denso 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 Nippon Denso Co Ltd filed Critical Nippon Denso Co Ltd
Priority to JP62111143A priority Critical patent/JP2550574B2/en
Publication of JPS63275976A publication Critical patent/JPS63275976A/en
Application granted granted Critical
Publication of JP2550574B2 publication Critical patent/JP2550574B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To perform highly accurate measurement, by transmitting an upper side band signal, in which increase is repeated at a constant period, and a lower side band signal, in which decrease is repeated, at the same time to an object as a transmitting waves, and obtaining the range and the speed of the object based on the frequency difference between each signal and the signal, which is reflected from the object.
CONSTITUTION: A reference frequency f0 is oscillated and the oscillated reference signal S0 is sent from a local oscillator 1. The signal S0 undergoes frequency modulation with a modulating wave S1. Increase is repeated at a constant period in the region higher than the frequency f0 in an upper side band signal S2. Decrease is repeated at a constant period in a lower side band signal S3. The signals S2 and S3 are generated in a modulator 2. The signals S2 and S3 are transmitted to an object from a transmitting antenna 3. Reflected waves S'2 and S'3 from the object are received with a receiving antenna 4. The difference between the reflected upper side band signal S'2 and the upper side band signal S2 and the difference between the reflected lower side band signal S'3 and the lower side band signal S3 are detected. The range and the speed of the object can be computed based on the frequency differences.
COPYRIGHT: (C)1988,JPO&Japio
JP62111143A 1987-05-07 1987-05-07 Radar device Expired - Lifetime JP2550574B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62111143A JP2550574B2 (en) 1987-05-07 1987-05-07 Radar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62111143A JP2550574B2 (en) 1987-05-07 1987-05-07 Radar device

Publications (2)

Publication Number Publication Date
JPS63275976A true JPS63275976A (en) 1988-11-14
JP2550574B2 JP2550574B2 (en) 1996-11-06

Family

ID=14553546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62111143A Expired - Lifetime JP2550574B2 (en) 1987-05-07 1987-05-07 Radar device

Country Status (1)

Country Link
JP (1) JP2550574B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563454B2 (en) 2001-06-13 2003-05-13 Mitsubishi Denki Kabushiki Kaisha FM-CW radar apparatus
GB2545678A (en) * 2015-12-21 2017-06-28 Canon Kk Method and apparatus for transmitting a continuous radar wave

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563454B2 (en) 2001-06-13 2003-05-13 Mitsubishi Denki Kabushiki Kaisha FM-CW radar apparatus
GB2545678A (en) * 2015-12-21 2017-06-28 Canon Kk Method and apparatus for transmitting a continuous radar wave
GB2545678B (en) * 2015-12-21 2020-06-03 Canon Kk Method and apparatus for transmitting a continuous radar wave

Also Published As

Publication number Publication date
JP2550574B2 (en) 1996-11-06

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