JPS5448192A - Pulse doppler radar device - Google Patents

Pulse doppler radar device

Info

Publication number
JPS5448192A
JPS5448192A JP11500077A JP11500077A JPS5448192A JP S5448192 A JPS5448192 A JP S5448192A JP 11500077 A JP11500077 A JP 11500077A JP 11500077 A JP11500077 A JP 11500077A JP S5448192 A JPS5448192 A JP S5448192A
Authority
JP
Japan
Prior art keywords
circuit
data number
effective data
relative velocity
relative
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.)
Pending
Application number
JP11500077A
Other languages
Japanese (ja)
Inventor
Norio Fujiki
Naoyuki Fukuhara
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.)
Nissan Motor Co Ltd
Mitsubishi Electric Corp
Original Assignee
Nissan Motor Co Ltd
Mitsubishi Electric Corp
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 Nissan Motor Co Ltd, Mitsubishi Electric Corp filed Critical Nissan Motor Co Ltd
Priority to JP11500077A priority Critical patent/JPS5448192A/en
Publication of JPS5448192A publication Critical patent/JPS5448192A/en
Pending 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles

Landscapes

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

Abstract

PURPOSE:To perform the error compensation and thus to obtain highly accurate information by measuring the effective data number within every measurement time to supply the data number to the signal process circuit and then compensating both the relative velocity and relative distance information of the targets. CONSTITUTION:The transmission signals radiated in front of antenna 1 are reflected by the target in the running direction of the car to receive the frequency deviation in proportion to the relative velocity to the target. This reception signal is processed properly through the circuit shown in the diagram, and both relative velocity 13 and relative distance 14 are measured via Doppler detector 9. Effective data number measuring circuit 16 makes sure of the presence or absence of the distance pulse to one transmission via the distance pulse output stage of detector 9, and counts the number of the distance pulse output obtained within the fixed measurement time to apply the effective data number output to signal process circuit 15. At circuit 15, both the relative velocity and relative distance information are compensated based on the effective data number of the information given from circuit 13 and 14.
JP11500077A 1977-09-24 1977-09-24 Pulse doppler radar device Pending JPS5448192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11500077A JPS5448192A (en) 1977-09-24 1977-09-24 Pulse doppler radar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11500077A JPS5448192A (en) 1977-09-24 1977-09-24 Pulse doppler radar device

Publications (1)

Publication Number Publication Date
JPS5448192A true JPS5448192A (en) 1979-04-16

Family

ID=14651808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11500077A Pending JPS5448192A (en) 1977-09-24 1977-09-24 Pulse doppler radar device

Country Status (1)

Country Link
JP (1) JPS5448192A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830302A (en) * 1983-04-08 1989-05-16 E. I. Du Pont De Nemours And Company Film winding apparatus
US4832274A (en) * 1987-03-05 1989-05-23 E. I. Du Pont De Nemours And Company Film winding apparatus and method
US4850545A (en) * 1983-12-08 1989-07-25 E. I. Du Pont De Nemours And Company Apparatus for winding film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721981A (en) * 1969-11-19 1973-03-20 Mini Of Aviat Supply Pulse radar ranging
JPS5023189A (en) * 1973-06-28 1975-03-12
JPS5217064A (en) * 1975-07-30 1977-02-08 Matsushita Electric Ind Co Ltd Vehicle and speed detector unit
JPS5412786A (en) * 1977-06-29 1979-01-30 Matsushita Electric Ind Co Ltd Speed ciolation supervising apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721981A (en) * 1969-11-19 1973-03-20 Mini Of Aviat Supply Pulse radar ranging
JPS5023189A (en) * 1973-06-28 1975-03-12
JPS5217064A (en) * 1975-07-30 1977-02-08 Matsushita Electric Ind Co Ltd Vehicle and speed detector unit
JPS5412786A (en) * 1977-06-29 1979-01-30 Matsushita Electric Ind Co Ltd Speed ciolation supervising apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830302A (en) * 1983-04-08 1989-05-16 E. I. Du Pont De Nemours And Company Film winding apparatus
US4850545A (en) * 1983-12-08 1989-07-25 E. I. Du Pont De Nemours And Company Apparatus for winding film
US4832274A (en) * 1987-03-05 1989-05-23 E. I. Du Pont De Nemours And Company Film winding apparatus and method

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