JPS5742871A - Radio-wave reflection system - Google Patents

Radio-wave reflection system

Info

Publication number
JPS5742871A
JPS5742871A JP11781880A JP11781880A JPS5742871A JP S5742871 A JPS5742871 A JP S5742871A JP 11781880 A JP11781880 A JP 11781880A JP 11781880 A JP11781880 A JP 11781880A JP S5742871 A JPS5742871 A JP S5742871A
Authority
JP
Japan
Prior art keywords
signal
information
rader
circuit
wave
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
JP11781880A
Other languages
Japanese (ja)
Inventor
Morio Onoe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11781880A priority Critical patent/JPS5742871A/en
Publication of JPS5742871A publication Critical patent/JPS5742871A/en
Pending legal-status Critical Current

Links

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To transmit various kind of information besides information showing that where is a body at a reflection point, by constituting to vary the reflectivity of a reflecting plate according to the information to be transmitted. CONSTITUTION:For example, when an input signal to an input circuit 6 is a velocity signal (a) of a vessel, etc., the velocity signal (a) is encoded by an encoding circuit 5 and passed through a waveform shaping circuit 4 and a modulator 3 to turn on and off a reflecting plate 2. If a pulse wave of a radar arrives as shown by an arrow A, when it is modulated by the signal (a), a reflected radio wave is code- modulation in the form of the encoded signal (a). For this purpose, waveform shaping is performed after the detection of rader-side receiver through a holding circuit fitted with reset peak or a low-pass filter to reproduce a wave, modulated at a reflection terminal side, at the rader side. Thereby transmitting the speed signal (a) to the rader side. Thus, various kind of information are transmitted in addition to information showing that there is a body at the reflection point.
JP11781880A 1980-08-28 1980-08-28 Radio-wave reflection system Pending JPS5742871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11781880A JPS5742871A (en) 1980-08-28 1980-08-28 Radio-wave reflection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11781880A JPS5742871A (en) 1980-08-28 1980-08-28 Radio-wave reflection system

Publications (1)

Publication Number Publication Date
JPS5742871A true JPS5742871A (en) 1982-03-10

Family

ID=14721008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11781880A Pending JPS5742871A (en) 1980-08-28 1980-08-28 Radio-wave reflection system

Country Status (1)

Country Link
JP (1) JPS5742871A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62113081A (en) * 1985-11-12 1987-05-23 Nippon Kokan Kk <Nkk> Ship position calculating apparatus
JPS62118278A (en) * 1985-11-18 1987-05-29 Nippon Kokan Kk <Nkk> Radar navigation device
JPS638578A (en) * 1986-06-30 1988-01-14 Matsushita Electric Ind Co Ltd Responder and identification of moving body
JPH0396882A (en) * 1989-09-11 1991-04-22 Tokimec Inc Reflector for radar test
JPH07294637A (en) * 1990-08-03 1995-11-10 Bio Medic Data Syst Inc Passive transponder
US5670959A (en) * 1994-10-19 1997-09-23 Nippondenso Co., Ltd. Antenna reflector
JP2022127780A (en) * 2021-02-22 2022-09-01 株式会社グリーン＆ライフ・イノベーション Buoyancy body for radio wave reflection fishery and sar image fishing tool watching system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149596A (en) * 1978-05-17 1979-11-22 Morio Onoue Reflectivity variable radar reflector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149596A (en) * 1978-05-17 1979-11-22 Morio Onoue Reflectivity variable radar reflector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62113081A (en) * 1985-11-12 1987-05-23 Nippon Kokan Kk <Nkk> Ship position calculating apparatus
JPS62118278A (en) * 1985-11-18 1987-05-29 Nippon Kokan Kk <Nkk> Radar navigation device
JPS638578A (en) * 1986-06-30 1988-01-14 Matsushita Electric Ind Co Ltd Responder and identification of moving body
JPH0396882A (en) * 1989-09-11 1991-04-22 Tokimec Inc Reflector for radar test
JPH07294637A (en) * 1990-08-03 1995-11-10 Bio Medic Data Syst Inc Passive transponder
US5670959A (en) * 1994-10-19 1997-09-23 Nippondenso Co., Ltd. Antenna reflector
JP2022127780A (en) * 2021-02-22 2022-09-01 株式会社グリーン＆ライフ・イノベーション Buoyancy body for radio wave reflection fishery and sar image fishing tool watching system

Similar Documents

Publication Publication Date Title
AU625991B2 (en) Method for processing transmitted and reflected signals for removing unwanted signals and noise from wanted signals
JPS5222866A (en) Demodulation system for angle modulated signal wave
CA2010959A1 (en) Ranging Systems
US4109247A (en) Clutter free communications radar
US3685050A (en) Single antenna signal retransmission device
JPS5742871A (en) Radio-wave reflection system
GB1378066A (en) Toyota jidosha kogyo kk doppler radar
WO1997009638A3 (en) Rangefinder
US4438435A (en) Two-way ranging system
US5115247A (en) Frequency modulated, phase coded radar
JPS577574A (en) Object discriminator
EP0395000A3 (en) Ultrasonic ground speedometer utilizing doppler effect
JPS6447985A (en) Cw radar system
JPS53131815A (en) Phase linear type emphasizer
CADZOW The algorithmic generation of pseudo-optimum pulse-burst codes[Final Technical Report, 1 Jun.- 1 Aug. 1977]
JPS54136293A (en) Echo detection system
FR2345729A1 (en) Radar transponder for mobile radar device - produces position and hazard condition recording using electroacoustic coding system (NL 26.9.77)
JPS6410319A (en) Information recognizing device
GB1404590A (en) Radio signalling equipment
SU1191345A1 (en) Device for identification of moving objects
GB1518103A (en) Signal receiving and transmitting systems
JPS5287997A (en) Radar signal processing unit
JPS57165777A (en) Obstacle detection device for ultrasonic wave
FR2438307A1 (en) Collision warning system for aircraft - uses radar signals processed to yield direction and velocity data for collision condition display
JPS5242395A (en) Radar unit