SU472302A1 - The device is a temporary compression of electrical signals - Google Patents

Description

one

Isoretepie belongs to the field of technical expertise. be used for accelerated processing of electrical signals, in particular for spectrum analysis.

1);) s.lgsn; Signal compression allows you to repeatedly receive a compressed copy of the signal and accordingly increase the speed of its compression. For example, compression devices (temporary compressors) are common in which.) S. nforf.lacp is underestimated by a magpt. m paver, and then quickly reproduced),

npii.Menei.iie of similar devices for high frequency signals are limited by the speed of the write and read systems. With direct use, the compressor frequency band is equal to the highest sigpal frequency.

To compress high-frequency signals, it is necessary to introduce preliminary frequency conversions, complex filtering, etc. All of this dramatically reduces the noise immunity of temporary compressors, since the conversion products of interfering signals located near the operating frequency band are immediately after such processing within the operating band.

Claims - provision of temporary high-frequency signals from to. low frequency time compressors, ii.MeioiHHx bands are twice as strong as Ho; ioca compressible signals.

This is achieved due to the fact that, in advance, from the range of high-frequency oscillation you select :; 1 a11re female, ss hgvetstpuk Htec buried phase Jo; i; .iHnn i. ii OiiuTaio | ca; n; n. At; | two are subject to temporary compression in the work of the HUIX Enchron 11ncfrequency: Zremeni pln kompressor. The resulting compressions of the same 1 l) klolz 1ts tsll phase and amnltudoii years of the introduction of a single high-frequency laser.

The drawing shows a plok-scheme of the device.

The device consists of a phase detector 1, an amplitude detector 2, a reference generator 3. two time compressors 4 and 5, a phase one: year} 1 torus G. of a high-frequency generator 7 and an amplitude modulator 8.

The device works as follows: PM.

B. The input spgnal is detected by a phase detector 1, to which the reference high-frequency voltage is applied from the reference generator 3. The frequency / o of the reference generator is the average frequency of the possible band of input signals.

At the output of the detector (), an 11kfreq voltage is reflected, which characterizes the law of change in the phase of the input signal.

pusitelno phase supporting.

This is a temporary compress voltage.

The compressor 4 is not used for phase

oduleti high frequency oscillations fi, produced by the generator 7. Mole nor derived in phase modular 6. Phase detector 1 and modulator 6 have - t combined characteristics with a scale

Ml, but this is why the law changes the output

a phase modulator aperture is a time-compressed time law

11 Change the phase of the input signal.

In the amplitude detector 2, the envelope of the input signal is highlighted. This envelope is compressed k times by the temporal controller 5 and then used for amplitude modulation of the output high frequency signal of the phase modulator 6.

The modulation is produced in the amplitude modulator 8, having a modulation characteristic coupled by the characteristic of the detector 2. Due to this, the amplitude modulation law of the output signal of the device is k times the amplitude modulation signal of the input signal. Since the temporary compressors 4 and 5 operate spfazno, the correlation of the amplitude of the n phase of the output signal is similar to the correlation of the amplitude and phase of the input signal.

PREDEM e. h obretynn

The device of temporary compression of electrical signals, containing two series-connected temporary compressors, a reference generator and a high-frequency generator, is characterized by the fact that, to narrow down the required frequency zero when high-frequency signals are used, it is equipped with amplitude and phase detectors and serially connected amplitude and phase modulators , and the inputs of the phase n amplitude detectors are connected

between themselves, and their outputs through temporary compressors are connected to the corresponding inputs of the amplitude and phase modulators, the second inputs of the phase detector on the modulator are connected respectively to

output reference and high-frequency generators.

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