SU434570A1 - DEVICE FORMATION OF PHASOMANIPULATED VIBRATIONS - Google Patents

Description

one

The invention relates to communications, namely, to phase telegraphy, and can be used in phase communication systems, in radio telemetry, in radiolocation, etc.

A device for the formation of highly stable phase-induced oscillations with both single and multiple phase manipulations is known, which includes reference and synchronized generators interconnected through shapers, frequency dividers, an adjustable time delay device for pulse signals, a phase detector, a low-pass filter, and a controller.

The disadvantage of such a device is the relatively low carrier frequency of the synchronized generator. This is due to the fact that at high frequency the shape deteriorates and the steepness of the leading edge of pulsed signals at the output of the throat decreases, which leads to a "failure of the frequency divider (the divider division factor changes), which changes the frequency of the synchronized generator. This is highly undesirable in -like systems.

The purpose of the invention is to increase the maximum power loss, the frequency of the device for the formation of phase-shifted oscillations.

This goal is achieved by the fact that a frequency converter is switched on between the synchronized generator and the driver, the second

input. which through a frequency multiplier is connected to an additional output of the reference oscillator. The drawing shows the proposed device.

The signal of a highly stable reference generator 1 is fed to the driver 2, from the output of which the pulse sequence with the frequency coi goes to divider 3

frequencies. The pulse sequence from the output of the divider 3 frequency with a frequency of COI / KI is fed to the input of the adjustable element 4 delay, delaying each pulse of the input sequence by time T. The adjustable delay element is controlled by the encoder 5.

The pulse train thus obtained is fed to one input of the phase detector 6.

The other input of the phase detector 6 receives a sequence of pulses with a frequency (Opr / K2, obtained as a result of the frequency of the signals of the synchronized generator 8 and the multiplier

frequency 9 to intermediate resampling and passage through shaper 10 and frequency divider 11.

The phase detector generates a pulse, the duration of which is determined by the time

(phase) ratios of pulsed sequences of EMLONSTRATES arriving at its inputs.

The constant component of an impulse sequence at the output of the low-pass filter il2 is determined by the pulse duration "at the output of the detector; step 6 -and is used to control the phase of the synchronized generator through the controlled element 13.

In the steady-state mode, the duration of the pulses On the first phase detector will be constant, regardless of the magnitude of the delay Gs. This confirms that under the action of the control signal from the output of the low-pass filter, the phase of the synchronized generator is changed by the value of .Apsg

ShogTzTaKym brazom, by changing the delay time is tragassed by the IB -law of the phase change of the synchronized generator. The use of frequency converter lowers

the frequency of the input signal of the driver 10, thereby eliminating the “failure of the frequency divider, this allows a significant increase in the maximum carrier frequency.

Subject invention

A device for forming phase-shift oscillations, which contains reference and synchronized oscillators with corresponding formers and splitters on the outputs, interconnected via an adjustable delay element, phase detector, low-pass filter and a controller, characterized in that a carrier frequency device, between a synchronized generator and a driver, a frequency converter is included, the second input — which is connected to the additional output op through a frequency multiplier polar ge1neratora.