JPS55128174A - Responder - Google Patents

Responder

Info

Publication number
JPS55128174A
JPS55128174A JP3611679A JP3611679A JPS55128174A JP S55128174 A JPS55128174 A JP S55128174A JP 3611679 A JP3611679 A JP 3611679A JP 3611679 A JP3611679 A JP 3611679A JP S55128174 A JPS55128174 A JP S55128174A
Authority
JP
Japan
Prior art keywords
signal
demodulated
receiving
antenna
responder
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
JP3611679A
Other languages
Japanese (ja)
Inventor
Shoichi Kamata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3611679A priority Critical patent/JPS55128174A/en
Publication of JPS55128174A publication Critical patent/JPS55128174A/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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors

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)

Abstract

PURPOSE:To simplify the circuitry dispensing with the power source and the receiving station employing a non-linear semiconductor for the responder for automobiles or the like. CONSTITUTION:The signal from the questioning device on the land is provided to a non-linear semiconductor 2 through a transmitting/receiving antenna 1. The modulated sweep signal is demodulated and fed to the resonance circuit 4 by way of a mathing transformer 3. A reflection signal is formed from any of corresponding elements 41-4n in the circuit 4 and combined with the receiving carrier signal to form a demodulated signal, which is teansmitted to the questioning device as the response signal from the antenna 1.
JP3611679A 1979-03-27 1979-03-27 Responder Pending JPS55128174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3611679A JPS55128174A (en) 1979-03-27 1979-03-27 Responder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3611679A JPS55128174A (en) 1979-03-27 1979-03-27 Responder

Publications (1)

Publication Number Publication Date
JPS55128174A true JPS55128174A (en) 1980-10-03

Family

ID=12460800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3611679A Pending JPS55128174A (en) 1979-03-27 1979-03-27 Responder

Country Status (1)

Country Link
JP (1) JPS55128174A (en)

Similar Documents

Publication Publication Date Title
ZA777120B (en) Coaxial transmitting and receiving optics for an electro-optic range finder
JPS5380906A (en) Frequency converter
BE874136A (en) ANTENNA ISOLATION DEVICE
FR2345825A1 (en) RECEIVING OR TRANSMITTING ANTENNA FOR RADAR
JPS5289002A (en) Process for communication
JPS55128174A (en) Responder
JPS53142890A (en) Identifying unit for microwave number
JPS52149085A (en) Radar apparatus
JPS5236904A (en) Signal transmission circuit
JPS5324708A (en) Transmitter
JPS52116535A (en) Collision preventing device
JPS567533A (en) Remote operating device
JPS5296813A (en) Transbonder for loading satelite
JPS5391603A (en) Receiver for transportation information
CNOSSEN et al. Advanced tracking and data relay experiments study: Multimode transponder experiment analysis procedure[Final Report, Sep. 1972- Sep. 1973]
JPS56136003A (en) Antenna device
JPS5652277A (en) Card equipped with radio transmitter*receiver
FRANKLIN et al. The Alouette II topside ionospheric sounder(Topside ionospheric swept-frequency pulsed sounder onboard Alouette 2 satellite, discussing transmitter power, large range receiver and antenna array)
JPS5367307A (en) Receiver device
JPS51148303A (en) Communication equipment
JPS52109302A (en) Moving object communication device
JPS53111227A (en) Communication device for multiple access
JPS5328357A (en) 4-way single -directivity reception antenna
MELITITSKII et al. Optimum amplitude detection of a partially polarized signal in the presence of partially polarized interference(scattering matrix radar detection)
JPS5639635A (en) Signal transmitter-receiver of self-driven car truck mounting storage battery