BE481266A - - Google Patents

Info

Publication number
BE481266A
BE481266A BE481266DA BE481266A BE 481266 A BE481266 A BE 481266A BE 481266D A BE481266D A BE 481266DA BE 481266 A BE481266 A BE 481266A
Authority
BE
Belgium
Prior art keywords
transmitter
distance
energy
wave
station
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE481266A publication Critical patent/BE481266A/fr

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
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • 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

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)
BE481266D BE481266A (de)

Publications (1)

Publication Number Publication Date
BE481266A true BE481266A (de)

Family

ID=128268

Family Applications (1)

Application Number Title Priority Date Filing Date
BE481266D BE481266A (de)

Country Status (1)

Country Link
BE (1) BE481266A (de)

Similar Documents

Publication Publication Date Title
US5307194A (en) Covert communication system using ultraviolet light
EP0415818B1 (de) Steuerung der Ausrichtung für Antennensystem mit elektronisch gesteuerter Auslenkung und Strahlformung durch Berechnung
EP2122388B1 (de) Einrichtung und verfahren zum lokalisieren einer mobilen einrichtung, die sich einer elektromagnetische wellen reflektierenden oberfläche nähert
EP2831615B1 (de) Vorrichtung für aktive und passive elektromagnetische detektion mit geringer wahrscheinlichkeit von unterbrechungen
EP0258917A1 (de) Frequenzmoduliertes Dauerstrichradar zur Entfernungsmessung
EP0170557B1 (de) Frequenzmodulierter Radiohöhenmesser
EP3698173B1 (de) Positionierungssystem mit gnss-signalerzeugungsvorrichtung und abstrahlendem kabel
FR2648570A1 (fr) Dispositif et procede pour mesurer l'azimut et le site d'un objet
FR2661561A1 (fr) Systeme d'antenne de radiogoniometrie a couverture omnidirectionnelle.
EP0022410B1 (de) Sondiergerät zum Bestimmen und Messen relativer Phänomene in der Umgebung des Erdballs
FR3057072A1 (fr) Procede et dispositif de reflectometrie gnss
EP0034974B1 (de) Überwachungsgerät für Doppler-VOR-Radionavigationssystem und damit ausgestattetes Doppler-VOR-System
FR3040792A1 (fr) Charge utile d'un satellite de mesure d'un systeme de localisation et procede de localisation
CH287593A (fr) Installation de radiogoniométrie et de détermination de distance.
EP3904904B1 (de) Weltraumüberwachung mit einem bistatischen radar, dessen empfangssystem sich zumindest teilweise an bord eines satelliten befindet
Earp et al. The practical evolution of the commutated-aerial direction-finding system
EP0702865B1 (de) Wahl eines verbindungssatelliten
BE473669A (fr) Système de transmission à distance des indications d'appareils de mesure électriques ou autres
Li et al. Photonic-assisted multifunctional radar for simultaneous measurement of distance, direction and velocity
Gething et al. Measurement of elevation angles of hf waves
BE475934A (de)
Jakes Jr Participation of the Holmdel station in the Telstar project
BE469834A (de)
CH275842A (fr) Installation de balise radioélectrique.
Tuska Historical notes on the determination of distance by timed radio waves