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Two-channel-receiver-indicator-for-phase-radio-systems

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Details

Inventors: Glumov, Ivan F.; Maiko, Viktor P.; Ziberov, Valery I.; Yaroslavtsev, Nikolai A.;
Assignee:
Primary Examiner: Blum; Theodore M.
Assistant Examiner:
Attorney, Agent or Firm: Steinberg & Raskin

Two of three receivers of a receiver-indicator are tuned to the frequencies of a first guided station and first guiding station, second guided station and second guiding station, respectively, and a third receiver is tuned to the frequency of a repeater station. The first and second receivers are connected to inputs of a first signal shaper for shaping electric signals corresponding to the best frequency between the first guided and guiding stations and to the input of a second signal shaper for shaping electric signals corresponding in the heat frequency between the second guided and guiding stations. The third receiver is connected to a third signal shaper for shaping electric signals corresponding to the beat frequency between the first guided and guiding stations and to a fourth signal shaper for shaping electric signals corresponding to the beat frequency between the second guided and guiding stations. The outputs of the first and third signal shapers are connected to inputs of a first digital follow-up phase meter, and the outputs of the second and fourth signal shapers are connected to the inputs of the second digital follow-up phase meter. Connected to the outputs of the first and second shapers are inputs of digital units for automatic frequency adjustment and multiplication, whose outputs are connected to the inputs of the first and second digital follow-up phase meters. A count pulse generator is connected to other inputs of the automatic frequency adjustment units.

DETAILED DESCRIPTION An object of the present invention is to provide a two-channel receiver-indicator for phase radio systems having a high accuracy of phase measurements with low frequency stability of the ground stations of the radio system.
This object is attained by providing a two-channel receiver-indicator of phase radio systems comprising three receivers, two of which, tuned respectively to the frequencies of the first guided and guiding stations and of the second guided and guiding stations of the radio system, are connected to the input of a first signal shaper for shaping electric signals corresponding to the beat frequency between the first guided and guiding stations and to the input of a second signal shaper for shaping electric signals corresponding to the beat frequency between the second guided and guiding stations respectively.
The third receiver, tuned to the frequency of the repeater station of the radio system, is connected to the input of a third signal shaper for shaping electric signals corresponding to the beat frequency between the first guided and guiding stations and to the input of a fourth signal shaper for shaping electric signals corresponding to the beat frequency between the second guided and guiding stations.
The outputs of the first and third signal shapers are connected to the inputs of the first follow-up phase meter and the outputs of the second and fourth signal shapers are connected to the inputs of the second follow-up phase meter.
In accordance with the invention, the system includes two digital units for automatic frequency adjustment and multiplication, one input of each of which is connected to the output of the first and second signal shapers, respectively, and the output of each of which is connected to the input of the follow-up phase meters.
The output of a count pulse generator is connected to the other inputs of the digital units for automatic frequency adjustment and multiplication.
The digital follow-up phase meters are used as the follow-up phase meters

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