SU407334A1 - K ^ AL • ^ - Google Patents

Description

I

The proposed device relates to the field of computing.

A device for dividing the mean values of analog signals is known, which contains two comparators, one inputs of which are connected to the inputs of the device, the output of each comparator through a corresponding key connected by a control input to the output of a pulse generator, and a digital recording unit.

The known device does not provide a sufficiently high accuracy, it is difficult to implement and is sensitive to interference.

The proposed device differs from the well-known in that, in order to improve noise immunity and accuracy of operation, it contains a generator of random, equally-equal-amplitude signals, the outputs of which are connected to the second inputs of clutches; the output of the counter of the divider signal is connected to the input of the generator of pulses, and the output of the counter of the dividend signal is connected to the input of the digital registration unit.

A block diagram of a device for dividing the average values of analog signals is shown in the drawing.

The device contains comparators 1 w. 2, random signal generator 3, keys 4 and 5,

generator 6, counters 7 and 8. and digital registration unit 9.

The proposed device uses the statistical test method (Monte Carlo).

The operation of the device is as follows. The first inputs of the comparators / and 2 receive the signal of the divider U (t) and the signal of the dividend Lh (t), respectively, and the second input voltage is applied to the voltage from a generator of random signals equally distributed in amplitude (Jc (i ) is equally distributed over the interval of values from O to f / Q. When conditions (ti) and c (1k) are met, a signal appears at the output of the comparator, and when a polling pulse arrives at a random time 1k from the generator 6 pulses Key 4 signal passes to counter 7.

When the condition I (and) U (t) is met, a signal appears at the output of the room 2. At the moment when the polling pulse arrives at key 5, the signal from comparator 2 passes to counter 8.

During the whole time the condition is fulfilled:

() C / o and (/Х1.o. After the counter code 7 becomes equal to the specified number / P), from its output the signal goes to generator 6, as a result of which the polling pulses are sent to

the keys 4 5. At the same time, the operation ends, and the counter code of the dividend signal 8 is proportional to the ratio of the average values of the input signals Ui {t) and U2 (t) with a proportionality coefficient equal to the counter code of the divider 7 signal.

. Subject and title

A device for dividing the average values of analog signal-in, containing two comparators, one inputs of which are connected to the inputs of the device, the output of each kominator through the corresponding key connected

control input. with the output of the pulse generator, is connected to the input of the corresponding counter, and a digital recording unit, characterized in that, in order to improve the noise immunity and accuracy of the device, it contains a generator of random signals equally distributed in amplitude, the outputs of which are connected to the second the inputs of the comparators, the output of the counter of the splitter signal is connected to the input of the pulse generator, and the output of the counter of the dividend signal is connected to the input of the digital registration unit.