SU1529428A1 - Two-channel device for mutual delay of digital signals - Google Patents

Abstract

The invention relates to a pulse technique and can be used in digital radio devices for various purposes. The purpose of the invention is to expand the functionality by increasing the range of mutual delays with the possibility of changing their sign. A two-channel device for mutual delay of digital signals contains two analog-to-digital converters, each of which is connected to a corresponding digital-to-analog converter. The clock pulse generator is connected to the control inputs of the first and second analog-digital converters, respectively, through the first and second controlled delay elements, and connected to the control inputs of the digital-analog converters via the third delay element. 1 il.

Description

The invention RELATES to the pulse Technique and is intended for use in digital radio engineering devices for various purposes — when processing mainly square-shaped signals.

or inventions - enhanced functionality by increasing the range of mutual delays with the possibility of changing their sign,

The drawing shows a block diagram of the device.

A two-channel mutual signal termination device consisting of the first 1 and second 2 analog-qi (} 1 AD converter, the first 3 and second 4 controlled delay elements, the generator 5 clock pulses, the third delay element 6 and the first 7 and second; 8 Clocked and digital converter converters DACs: ADC inputs 1 and 2 are the first and second inputs of the device, respectively. with -Digital inputs 7 and 8, Control inputs 1, 1x 3 delay elements 3 and 4 and the input of the third - 6th element 6 (connected to the output of the 3 clock pulse generator. The outputs of which are, respectively, the first and second outputs of a two-channel device for mutual delay of digital signals.

The device works as follows.

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The clock pulse generator 5 produces a sequence of pulse signals with a period equal to the sampling interval T (pulse duration and "T), which is fed to the inputs of the controlled delay elements 3 and 4 and to the input of the third delay element 6. The control inputs of the controllable elements 3 and 4 are delays.

V and V signals are controlled. The controlled delay elements generate pulsed signals from cc and tc with a period T that are delayed by time -f (V) tf (Vt) f where f (0 is a single-valued function, a sequence of pulses of duration b, b with a period T delayed by time The controllable sequences of pulse signals are fed to the clock inputs from the First controllable delay element, respectively, to the first ADC, and from the second to the second ADC. clocked x of the first and second HAIt whose output signals change when the output signal of the third delay element is affected.The mutual delay of the output pulse sequences of the first and second controlled delay elements determines the amount of adjustable mutual delay of the digital signals.

Claims (1)

Formula invention A two-channel device for mutual delay of digital signals, containing a first analog-to-digital converter, two digital-to-threshold converters, whose outputs are device codes, and a clock pulse generator, characterized in that functionality by increasing the range of mutual delays with the possibility of changing their sign, introduced a second analog-to-digital converter, the first and second controllable delay elements, wherein the output of the clock generator is connected to the control inputs of digital-to-analog converters via a third delay element and through the first and second controlled delay elements with the control inputs of the first and second analog-to-digital converters, respectively, whose inputs are the first and second inputs of the device, and the outputs are connected to the signal inputs of the first and second digital-to-analog converters respectively.