JPS5295996A - Fm-cw radar - Google Patents

Fm-cw radar

Info

Publication number
JPS5295996A
JPS5295996A JP1299776A JP1299776A JPS5295996A JP S5295996 A JPS5295996 A JP S5295996A JP 1299776 A JP1299776 A JP 1299776A JP 1299776 A JP1299776 A JP 1299776A JP S5295996 A JPS5295996 A JP S5295996A
Authority
JP
Japan
Prior art keywords
radar
measure
filter
differential amplifier
high precision
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
JP1299776A
Other languages
Japanese (ja)
Inventor
Hisayoshi Ueno
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1299776A priority Critical patent/JPS5295996A/en
Publication of JPS5295996A publication Critical patent/JPS5295996A/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
    • G01S13/02—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

Abstract

PURPOSE:To obtain the device with high precision by the use of not the filter but the differential amplifier at the FM-CW radar to measure the range electrically.
JP1299776A 1976-02-09 1976-02-09 Fm-cw radar Pending JPS5295996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1299776A JPS5295996A (en) 1976-02-09 1976-02-09 Fm-cw radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1299776A JPS5295996A (en) 1976-02-09 1976-02-09 Fm-cw radar

Publications (1)

Publication Number Publication Date
JPS5295996A true JPS5295996A (en) 1977-08-12

Family

ID=11820833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1299776A Pending JPS5295996A (en) 1976-02-09 1976-02-09 Fm-cw radar

Country Status (1)

Country Link
JP (1) JPS5295996A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541465A1 (en) * 1983-02-18 1984-08-24 Thomson Csf CONTINUOUS WAVE RADAR MODULATED IN FREQUENCY AND ITS APPLICATION TO AN ALTIMETRIC PROBE
US5280290A (en) * 1991-10-21 1994-01-18 U.S. Philips Corporation Self-oscillating mixer circuits, and FMCW radar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541465A1 (en) * 1983-02-18 1984-08-24 Thomson Csf CONTINUOUS WAVE RADAR MODULATED IN FREQUENCY AND ITS APPLICATION TO AN ALTIMETRIC PROBE
US5280290A (en) * 1991-10-21 1994-01-18 U.S. Philips Corporation Self-oscillating mixer circuits, and FMCW radar

Similar Documents

Publication Publication Date Title
NL7707818A (en) LASER DISTANCE MEASUREMENTS OPERATING ACCORDING TO THE PRINCIPLE OF DURATION MEASUREMENT.
JPS5295996A (en) Fm-cw radar
JPS52119197A (en) Thin board piezo-resonator
JPS5214466A (en) Current measuring device
JPS52104289A (en) Atomic spectrum generator
JPS524882A (en) Phase differential meter
JPS535608A (en) Hunting characteristic measurement device
JPS5216995A (en) Radar signal processor
JPS525293A (en) Radar
JPS535590A (en) Fm-cw radar containing function to delete residual spurious element
JPS53132371A (en) Distance measuring device
JPS5347889A (en) Indicating instrument for serum subdivision
JPS533262A (en) Radiation thickness meter
JPS5368146A (en) Signal generator
JPS522544A (en) Measuring device utilizing irregular signal
JPS51120762A (en) Voltage mearuring device
JPS5377659A (en) Distance detector
JPS51134144A (en) Distance gauge
JPS5235689A (en) Reflection measuring device
JPS5345A (en) Divider
JPS5263695A (en) Doppler sensor
Chong et al. The limitations of 113Inm for plasma volume measurement.
JPS5223959A (en) Nicrometer in which a measuring range is made variable
JPS5414280A (en) Deviation value detecting circuit
JPS51144835A (en) Progressive angle meter

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20080914

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20080914

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20090914

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20090914

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100914

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100914

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110914

Year of fee payment: 10

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 10

Free format text: PAYMENT UNTIL: 20110914

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 10

Free format text: PAYMENT UNTIL: 20110914

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 11

Free format text: PAYMENT UNTIL: 20120914

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130914

Year of fee payment: 12

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250