SU510717A1 - Sine-cosine functional converter - Google Patents

Description

one

The invention relates to the field of computing, in particular, to specialized computers and is intended to transform a sequence of pulses in a sinusoidal and cosine dependence.

A sine-cosine functional converter is known, which contains a block of linear transducers, a sign trigger, two groups of OR elements, an increment counter and a group of switches, the first outputs of which are connected to the inputs of the first group of OR elements, and the control inputs are connected to the corresponding outputs of the increment counter .

However, such devices allow the formation of a narrow class of functional dependencies.

while for reproducing sinusoidal (cosine) dependencies of the form

f (x} L -sin (0-x

with A (or d) 1) execution is required

dy

conditions 1 - i; oo. In addition, the step changes

Neither the angle of inclination of the approximating segments is limited by the capacity of the increment counter.

Changing the capacity of this counter to change the angle of inclination leads to a change in the length of the approximating segments, which entails the appearance of additional

approximation errors.

The purpose of the invention is to improve the accuracy

calculations at reproduction of values of functions on sine and cosine dependences.

The goal is achieved by the fact that the proposed converter additionally introduces a reversible counter and delay elements, the inputs of which are connected to the corresponding outputs of the linear block

converters connected by the input to the input of the increment counter, and the outputs are connected to the signal inputs of the switch group, the second outputs of which are connected to the inputs of the second group of elements

"OR, the outputs of both groups of elements" OR are connected to the corresponding inputs of the reversible counter, and the output of the increment counter is connected to the input of the sign trigger.

The drawing shows the schematic diagrams of the proposed converter.

The sine-cosine functional converter contains an increment counter 1, a block of linear transducers 2, delay elements 3, a group of switches 4, two reversible “PLI groups of elements of a counter 7, t) Iggsra 8, U, y; 1vralyy key 10, counter 11 p Key 12. Functionalization of the corporate chagar of the United States of America is based on the use of piecewise linear approximation of the irproduction of the dependency of the dependency, and the section of the sipusoid (cosypical) corresponding to a quarter of the period is approximated by one segment with odometer correction, consisting of a complementary approximation by two segments of a curve, the order of which is the difference between the sinuses of the sine (cosine) per atom site and the correspondence: their name and the result of these functions, as a result of previous appendages, as a result of previous appendages, as a result of previous appendages, resulting from the previous appendants appearing as a result of previous appendages. by summing up the corresponding values of all approximations 1miruk) of 1 segments. If the computations are carried out with higher accuracy, then we can fit each segmeite, which is the difference between the expirient siaus or cosines (snusoid, cosiiuusoid) and approximated by their values, and in the case of 1, and in a single figure, 1, ь, ол. } Also, TWO segments. Increasing the number of such operations (p1go; s KOi) peKiuni ;. It is possible to achieve any predetermined accuracy, and for the purpose of calculating the calculations, calculate the necessary number of correction steps that are implemented in the device in parallel at each step. Thus, the following operations should be performed when annotating the similar approximation: the parallel formation of straight lines (the KOTopBix number is determined by the permissible error of annroxymycin), different angles of inclination to the abscissa axis and different lengths; summation of the current line ordiat of approximate myrting segments. The converter works in the following way. In the initial state, all the triggers and counters are in the zero state. Key 12 is open-run generating function sius. The start trigger 9 is translated into one state, which opens the control key 10. Clock pulses, each of which is a single increment of the YES argument, pass through the key 10 to the inputs of the linear transducer unit 2 and the prnran1 counter, 1 The signal overflows the counter 1, the capacity of which corresponds to an apryMeirra value of 180 °, is fed to the counting input of the trigger 8, transferring it to the opposite state each time. So there is the formation of zzak of reproducible dependence. We assume that the single state of the mngera of the sign 8 corresponds to the positive sign of the calculated value of the function, and the zero sign to the positive sign. The block of linear transducers 2, at the input to its input, of the incremented A.i forms the required linear dependencies at the swap outputs with corresponding tilt angles that, through delay elements 3, arrive at the first inputs of the corresponding switches 4, and the number of outputs of the transducer 2 depends on or a given calculation accuracy. The signals from the corresponding outputs of the counter are incremented 1 by pa other inputs of non-switches 4, changing the sign of the increments of linear dependencies arriving at their first inputs. In this way, an approximating segments of the corresponding length are formed with corresponding tilt angles. From the nerve outputs of the switches 4, the signals corresponding to the linear dependences of the same sign (plus) receive the summing input of the reversible counter 7 through the ground of the OR 5 for the sum. Signals corresponding to linear signals with a reverse sign m (l1In-s), from the second outputs of non-switches 4, receive the subtractive input of the reversible counter 7 through the group of elements "OR 6. Delay elements 3 are introduced for separation in time of variable signals, from which the odds: the increment of the calculated function is prevented, preventing the simultaneous arrival of signals on the summing and subtracting inputs of the reversible counter 7. When 1M the delay time of each element 3 is different and is related to each other as 1: 2: 3 ... Minimum delay time is defined This is done by the time of transient processes in the reversible counter 7. Such a spindle spacing in time allows the formation of linear dependencies with tilt angles from -90 ° to + 90 °. The result of the calculation is formed on the reversible counter 7, and the sign of the result is in the trngger 8. If the final results are 1, the calculation is .1 but it is necessary to learn how to increase the function at each step, then you need to “Reset the roar of the counter 7” at each step (Nernod, following impulses Ah). The use of the counter argument 11 (key 12 closed) allows the calculation of computations. for discrete values, 11 arguments. In sTo.vi, if the argument in the additional code is overwritten, it is entered into counter 11, after the impulse sequence corresponding to the input to its input is given to the argument of the calculated function, but the output of the counter argument 11 is the second half of the counterpolarity received by zero output trigger input 9, non-switching to the zero state. As a result, the key 10 is closed, which corresponds to the end of the calculation process. The operation of the device when calculating the cosine dependence is similar. The difference lies in the fact that the initial state of the converter is as follows: from the counter 7, the value corresponding to Cos 0 ° 1 (cosO ° sin90 °) is quasi, and the increment counter 1 is indicated by the indication of the corresponding argument E0 °.

Ф орм ул а and 3 о б р е e and u

A siaus-cosius functional instructor containing a block of lii converters, a sign trigger, two groups of elgeites OR, an increment counter and a group of switches, the first outputs of which are connected by the inputs of the first group of OR elements, and the control inputs are connected to the corresponding outputs of the increment counter, in order to improve accuracy, a reverse counter and delay elements are added to it, the inputs of which are connected to the corresponding outputs of the linear conversion unit The inputs are connected to the input of the increment counter, and the outputs are connected to the signal inputs of a group of switches, the second outputs of which are connected to the inputs of the second group of elements OR, and the outputs of both groups of elements OR are connected to the corresponding inputs of the reversible counter, and sign trigger entry.

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