SU828436A2 - Device for discriminating and quantization of binary signals - Google Patents

Description

one

The invention relates to radio engineering. It can be used when receiving coded information and is an improvement of the known invention described in ed. St. No. 559442.

From the main invention of auth. St. No. 559442, a device for extracting and quantizing binary signals is known, which contains a low-pass filter, an input voltage control unit, keys, a clock generator, reset integrators, an analog-to-digital converter, a delay element, a subtraction unit, a threshold block, an adder, a digital converter analog .1. However, in the known device is low reliability.

The purpose of the invention is to increase credibility.

For this, a quadr, a first additional adder and a serially connected multiplier, a second additional adder and a divider, the second input of which is connected to the output of the first additional adder, whose input is connected to the output of the quad, and which is connected to the input of an additional output of adder the outputs of the delay element and the fifth key and the auxiliary output of the subtractor are connected to the corresponding inputs of the multiplier, and the output The cable is connected to the analog input of the converter - analog.

The drawing shows a structural electrical circuit of the proposed device.

The device contains a low-pass filter 1, an input voltage adjustment block 2, the first 3 and second 4 keys, integrators 5, 6 with reset, the third key 7, the geyrator of 8 clock pulses, the converter 9 analogue - digit, the fourth 10 and the fifth 11 keys , delay element 12, subtraction unit 13, adder 14, threshold unit 15, digit-analog converter 16, multiplier 17, first additional adder 18, quad 19, second additional adder 20 and divider 21.

The device works as follows.

The received signal through block 2 is fed to the inputs of the first 3 and second 4 keys. From the output of the keys 3, 4, the signal is alternately fed to the integrators 5, 6. The signals from the outputs of the integrators 5, 6 through the third key 7 alternately go to the converter 9.

The result of the conversion in the form of a code through the fourth 10 and fifth 11 keys and an element of the rear kn 12 is fed to the inputs of the block.

Claims (1)

Claim A device for extracting and quantizing binary signals according to ed. St. No. 559442, characterized in that, in order to increase reliability, a quadrator, a first additional adder and a series-connected multiplier, a second additional adder and a divider are introduced, the second input of which is connected to the output of the first additional adder, the input of which is connected to the output of the quadrator, to the input of which an additional adder input is connected, while the outputs of the delay element and the fifth key and the additional output of the subtraction unit are connected to the corresponding inputs of the multiplier, and the output of the divider Connected to the auxiliary input of the converter, analog - digital.