SU1027633A1 - Single pulse signal shape digital registering device - Google Patents

Abstract

A DIGITAL DETECTING DEVICE OF MONO-PULSE SIGNALS, containing a digital time interval meter, the output of which is connected to the input of the mainframe and indication unit, and the first input is connected to the pulse receiver distributor, the delay line whose output is connected to the receiver, the receiver, and the transducer | connected to the input signal bus and to the input of the meter amplitude, whose output is connected via a serially connected memory block and (k-1) resistors, where k is an integer number, with a common bus, the second inputs of the first (k-1) comparators connected to the first output of the corresponding resistor, the second input of the k-th comparator is connected to a common 11-link, 6 differently so that, in order to improve accuracy and reliability, k / 2 anti-coincidence elements are entered into it, the OR element and the sync pulse generator, and the recirculator input the pulses are connected to the output of the OR element, whose inputs are connected to the outputs of the anti-coincidence elements, the inputs of which are connected to the outputs of the corresponding comparators, the output of the rectifier (L of the pulse cooler is connected to the first input of the imager with nhroimpulsov, the output-of which is connected to a second input meter .intervalov time, and a second input coupled to an output k-ro comparator.

Description

The invention relates to a pulse technique, which can be used in the development of digital recording devices. A device is known that contains parallel measuring channels, each of which consists of series-connected delay lines, a voltage divider and a voltage key, and the key outputs of all channels are connected to the inputs of the display unit. The disadvantage of this device is its low accuracy. A device containing a digital time meter is known, the output of which is connected to the input of the approximation and indication unit, and the first input is connected to the output of the pulse recirculator, a delay line whose output is connected to the first inputs of all comparators, the input is connected to the input signal bus and the input of the amplitude meter, the output of which is connected via serially connected memory sticks and () resistors with a common bus, the second inputs of the first (k-1) comparators are connected to the first output of the corresponding resistor, The second input of the k-ro comparator is connected to the common bus f2. The disadvantages of the known device are its inaccuracy and low reliability, which is determined. great complexity. The purpose of the invention is to increase accuracy and reliability. The goal is to achieve that in a device containing a digital time interval meter, the output of which is connected to the input of the block of approximation and indication, and the first input is connected to the output of the pulse generator, the delay line whose output is connected to the first inputs of the Comparators, and the input is connected by bus the input signal and the input and 1 amplitude gauge, the output of which is connected through a serially connected memory block and (k-1) resistors, where k is an integer, with a common bus, the second inputs of the first (k-1) comparators. The output terminal of the corresponding resistor, the second input of the k-.ro comparator is connected to the common bus, k / 2 anti-coincidence elements are entered, the OR element and the clock generator, and the pulse recirculation input is connected to the output of the OR element, whose inputs are connected, to the outputs of the anti-coincidence elements The inputs of which are connected to the outputs of the corresponding comparators, the output of the pulse recirculator is connected to the first input of the sync pulse generator, the output of which is connected to the second input of the time interval meter, and the second input d is connected to output k-ro comparator. On .fig. 1 is a block diagram of a digital recorder of a single-pulse waveform; FIG. 2 shows time diagrams. The device contains a digital meter 1 of time intervals, the output of which is connected to the input of the block 2 approximation and indication, and the first input is connected to the output of the recirculator 3 pulses, delay line 4, the output of which is connected to the first inputs of the comparator 5, and the input is connected to the input signal bus b and to the input of the amplitude meter 7, the output of which is connected through a serially connected memory block 8 and (k-1) resistors 9 to a common bus, the second inputs of the first (k-1) comparators 5 are connected with the first conclusions with the corresponding resistors 9, the second input of the k-ro comparator 5 is connected to the common bus, the input of the recirculator 3 is connected to the output of the OR element 10, the inputs of which are connected to the outputs of the anti-coincidence elements 11, the inputs of which are connected to the outputs of the corresponding comparators 5, the output of the recirculator 3 is connected to the first input of the synchronizer 12 clock pulses, the output of which is connected to the second input of the meter 1. intervals, and the second input is connected to the output of the comparator 5-k. Digital recorder forks monopulse signals works as follows. A single pulse, the shape of which needs to be registered, is fed to the meter 7 of the amplitude of the input signal and through delay line 4 to the first inputs of the comparators 5. The amplitude value of the measured signal is stored in memory block 8 and through resistors 9 the voltage divider in the form of quantization reference levels distributed by comparator 5. During operation of the device, the measured signal is compared with the reference levels of the comparators 5 (Fig. 2a). As the level of the signal increases from zero yoo-. Comparators 5 start at the beginning, starting with k-ro, and the logical unit level is set at their outputs. Then, as the level of the input signal decreases, the comparators 5 begin to turn off in the reverse order, thus setting the logical zero level at their outputs. Thus, pulses are removed from the outputs of the comparators, the duration of which depends

from the time when the input signal exceeds the quantization level,, (Fig. 2b). From each of the two neighboring comparators 5, the pulses are applied to the corresponding anti-coincidence elements 11, the output of which produces a pair of pulses with a duration equal to the on and off interval of the adjacent comparators 5 (Fig. 2.b-).

Further, these pulses from all circuits of the diagrams arrive at the element OR 10 ,. where c5 are built in one channel (fig, 2d). Signal from; The gahod of the IDN element iO is a pulse sequence with a pulse width I1 and temporal location relative to each other, which determines the e1F1M shape of the input signal.

The number of pulses in a burst is equal to the number of quantization levels. This pulse sequence is defined by the duration of the input signal. From the output of the item OR 1 & pulses arrive at the input of the recirculation of the tdra 3 pulses, where: there is a multiple repetition of the entire pulse sequence recorded in it. For normal

The operation of the recirculator of 3 pulses requires that the amount of delay in the feedback circuit is not less than the maximum possible duration of the input signal.

From the output of the recirculator 3 pulses, the pulse sequence is fed to a digital meter 1 time intervals, where the digital duration of the pulses and the temporal position between them is measured in digital form. A synchronization signal is generated from the driver 12 of the synchronization pulses before each recirculation cycle. meter 1 time intervals to the initial state. Since the recirculator is for the entire sequence of pulses of an obgtion, the temporal arrangement of the pulses and their duration during the recirculation process does not change. This allows very accurately changing the time intervals, the measured values of the time intervals in digital form are transmitted to the approximation and indication unit 2, in which the form of the measured mono-impulse is restored and displayed. .

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Claims (1)

A: DIGITAL RECORDING DEVICE FOR MONOMPULSE SIGNAL FORMS, containing a digital time interval meter, the output of which is connected to the input of the approximation and indication unit, and the first input is connected to the output of the pulse recirculator, the delay line, the output of which is connected to the first inputs of the comparators, and the input is connected to the bus of the signal and with the meter_input, the amplitude, the output of which is connected through a series of _ _ connected memory block and (k – 1) resistors, where k is an integer, with a common bus, the second inputs of the first (k – 1) comp The speakers are connected to the first output of the corresponding resistor, the second input of the comparator is connected to a common bus, which means that, in order to improve accuracy and reliability, k / 2 anti-coincidence elements, an OR element, and a shaper are introduced into it sync pulses, and the input of the pulse recirculator is connected to the output of the OR element, the inputs of which are connected to the outputs of the anti-coincidence elements, the inputs of which are connected to the outputs of the corresponding (g corresponding comparators, the output of the pulse recirculator is connected to the first input of the I sync * output is connected to the second input meter 'time slots, and a second input coupled to an output k-th comparator.