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Machine translation
1. (WO1981001616) A MEASURING DEVICE FOR MEASURING THE CARRIER FREQUENCY OF SHORT DURATION PULSES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001616    International Application No.:    PCT/SE1980/000312
Publication Date: 11.06.1981 International Filing Date: 03.12.1980
IPC:
G01S 13/24 (2006.01), G01S 7/292 (2006.01)
Applicants:
Inventors:
Priority Data:
7909984 04.12.1979 SE
Title (EN) A MEASURING DEVICE FOR MEASURING THE CARRIER FREQUENCY OF SHORT DURATION PULSES
(FR) DISPOSITIF DE MESURE POUR MESURER LA FREQUENCE PORTEUSE D"IMPULSION DE COURTE DUREE
Abstract: front page image
(EN)A device for measuring the frequency of a pulsed carrier signal in which the carrier frequency is situated within the frequency range and to give a continuous signal whose frequency is equal to the measured carrier frequency. A frequency discriminator (3) gives an analog voltage via a track-and-hold circuit (4) and a DC-amplifier (15) to one input of a comparator (6) whose second input receives the analog voltage from the discriminator (3). The difference value from the comparator (6) is supplied to a voltage controlled oscillator (8). This is via a directional coupler (9) and a controllable switch (1) connected to the frequency discriminator (3) which alternatively receives the input signal to the device and the output signal from the voltage controlled oscillator (8).
(FR)Dispositif de mesure de la frequence d"un signal porteur a impulsion dans lequel la frequence porteuse est situee dans la gamme de frequence et pour produire un signal continu dont la frequence soit egale a la frequence porteuse mesuree. Un discriminateur de frequence (3) envoie une tension analogique via un circuit de voie-et-maintien (4) et un amplificateur a courant continu (15) a une entree d"un comparateur (6) dont la seconde entree recoit la tension analogique provenant du discriminateur (3). La valeur differentielle provenant du comparateur (6) est transmise a un oscillateur commande par la tension (8). Ceci s"effectue via un coupleur directionnel (9) et un commutateur a commande (1) connecte au discriminateur de frequence (3) qui recoit alternativement le signal d"entree envoye au dispositif et le signal de sortie provenant de l"oscillateur (8) commande par la tension.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)