SU432434A1 - DEVICE OF ELIMINATION - Google Patents

Description

one

The invention relates to the field of radio electronics and can be used in digital automation equipment, measuring equipment and radio navigation.

Decontamination devices are known that contain a binary quantizer, a drive and an accumulation result evaluation unit sequentially connected.

In order to increase the reliability and accuracy of identifying a given portion of the leading edge of a radio pulse, in the proposed device, between the output of the detector and the input of the accumulation result evaluation unit, an additional unit for evaluating the ratio of accumulation results was added.

The drawing shows a block diagram of the proposed disambiguation device.

The device contains serially connected bi-quantizer /, accumulator 2, unit 3 for estimating the ratio of accumulation results and unit 4 for evaluating accumulation results.

The device works as follows.

The signal from the radio receiver is fed to the input of the binary quantizer 1, where it is quantized into a number of control points by two levels (-f 1 and -1). From the output of the binary quantizer 1, the signals are fed to the input of accumulator 2, consisting, for example, of

accumulators, to which the input pulse signals arrive through the switchboard, which ensures that samples are fed for each control point (for example, for each half-period or the period of filling of the radio pulse) always to one accumulator.

From the output of accumulator 2, the signals are fed to the input of block 3 of the evaluation of the ratio of accumulation results, by means of which the partial separation of the accumulated results obtained in a number of points is found, and the ratio of accumulation results corresponds to the ratio of the instantaneous values of the signal at selected points only when

signal / noise, less than one.

From the output of block 3 of the evaluation of the ratio of the results of accumulation, the signals arrive at block 4 of the evaluation of the results of accumulation.

If the signal-to-noise ratio is equal to or greater than one, then in order to estimate the indicated Ratios, it is necessary to artificially degrade the signal-to-noise ratio to the required level, for which, in block 3 for estimating the ratio of accumulation results, it is necessary to introduce an additional generator of the reference regulating signal whose output is connected to the input binary quantizer;

If it is necessary to reduce the signal-to-noise ratio to the desired value, the signal of the additional generator is mixed into the input signal of the binary quantizer 1, and the signal-to-noise ratio decreases, which ensures in this case also the possibility of measuring the ratio of the instantaneous values of the signal in a number of points, without measuring the amplitudes themselves .Oshnala.

Subject of the invention A disambiguation device containing serially connected binary quantizer, accumulator and agglomeration evaluation unit, characterized in that, in order to increase the reliability and accuracy of identification of a predetermined leading edge portion of the radio pulse, an evaluation unit is additionally inserted between the accumulator output and the input of the accumulation evaluation unit ratios of accumulation results.