JPS6343715B2 - - Google Patents
Info
- Publication number
- JPS6343715B2 JPS6343715B2 JP54094104A JP9410479A JPS6343715B2 JP S6343715 B2 JPS6343715 B2 JP S6343715B2 JP 54094104 A JP54094104 A JP 54094104A JP 9410479 A JP9410479 A JP 9410479A JP S6343715 B2 JPS6343715 B2 JP S6343715B2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- frequency
- distance
- frequency signal
- voltage level
- 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
Links
- 230000035559 beat frequency Effects 0.000 claims description 27
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
-
- 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
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/345—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using triangular modulation
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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9410479A JPS5618772A (en) | 1979-07-24 | 1979-07-24 | Fm-cw radar apparatus for automobile |
US06/171,149 US4348675A (en) | 1979-05-23 | 1980-07-22 | FM-CW Radar system for use in an automotive vehicle |
FR8016243A FR2461991A1 (fr) | 1979-07-24 | 1980-07-23 | Installation radar du type a modulation de frequence et a ondes entretenues, a l'abri des signaux fantomes, ayant pour role d'avertir un conducteur qu'il serre de trop pres un autre vehicule |
DE3028076A DE3028076C2 (de) | 1979-07-24 | 1980-07-24 | Radargerät für ein Fahrzeug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9410479A JPS5618772A (en) | 1979-07-24 | 1979-07-24 | Fm-cw radar apparatus for automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5618772A JPS5618772A (en) | 1981-02-21 |
JPS6343715B2 true JPS6343715B2 (de) | 1988-09-01 |
Family
ID=14101127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9410479A Granted JPS5618772A (en) | 1979-05-23 | 1979-07-24 | Fm-cw radar apparatus for automobile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618772A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57201873A (en) * | 1981-06-08 | 1982-12-10 | Honda Motor Co Ltd | Fm-cw radar for running body |
JPS629282A (ja) * | 1985-07-08 | 1987-01-17 | Honda Motor Co Ltd | Fm−cwレ−ダ装置 |
WO2014147859A1 (ja) * | 2013-03-19 | 2014-09-25 | 三菱電機株式会社 | レーダ装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52111395A (en) * | 1976-03-16 | 1977-09-19 | Fujitsu Ten Ltd | Fmmcw radar |
-
1979
- 1979-07-24 JP JP9410479A patent/JPS5618772A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52111395A (en) * | 1976-03-16 | 1977-09-19 | Fujitsu Ten Ltd | Fmmcw radar |
Also Published As
Publication number | Publication date |
---|---|
JPS5618772A (en) | 1981-02-21 |
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