SU407317A1 - FREQUENCY-PULSE LINEAR INTERPOLATOR - Google Patents

Description

one

The present invention relates to the field of computing technology.

Known frequency-pulse Converter containing a decoder, the outputs of which are connected to the potential inputs of two groups of elements And, the pulse inputs of which are connected to the sensor outputs of exemplary frequencies, the inputs connected to the case: a frequency. The outputs of the elements “AND of each group are connected. To the corresponding element“ OR. The outputs of the elements “OR are connected with the i-m pulsed inputs of two elements“ I. The outputs of the elements “AND through the third element” OR are connected to the input of the frequency and pulse tracking system. The known device also contains a logical trigger ring.

A disadvantage of the known converter is the complexity of its implementation.

The proposed pulse frequency interiolator is characterized in that, for the sake of simplicity, it contains a frequency converter into a code, one of which is connected to the input of the interpolator. Other inputs are connected to the outputs of the frequency divider. The potential outputs of the converter are connected to the inputs of the descrambler, its frequency output is connected to the first input of a logic trigger ring, the other input of which is connected to the output of a frequency divider. Trigger outputs

2

rings are connected to the potential inputs of two elements “I.

FIG. 1 shows the scheme of the proposed frequency-pulse interpolator; in fig. 2 is a graph of the formation of a linear region.

The interpolator includes the interval definition block /, containing a frequency converter in the code (PCh) 2 and deciphering interpolation intervals 3, a logical trigger ring (LTK) 4, a sensor of exemplary frequencies 5, a group of circuits "And 6, impulse potential elements" And 7 and 8, the circuits OR 9 and 10, and the frequency-pulse tracking system.

In the proposed converter, the input f is connected to the input of the FCI 2 of the interval determination block /.

The inputs of the frequency frequencies of the FCL are connected to the | | 1a. frequency components Po / 2 (per frequency divider). The potential outputs of the PKhK are connected to the inputs of the decoder of interpolation intervals 3, the outputs of which are connected to the potential inputs of both groups of circuits “AND 6, to the pulse inputs of which are connected the sensor inputs of exemplary frequencies 5, the inputs associated with wedges

/ g

Frequency Components Frequency Output Last Frequency

The interval determining unit is connected to the input (LTK) 4.

The outputs of the LTK 4 are connected to the potential inputs of the pulse-potential elements “And 7 and 5, the pulse inputs connected to the outputs of the respective circuits“ OR 9. The outputs of the elements “And 7 and 5 are connected to the inputs of the circuit“ OR 10, the output connected to the summing input pulse counter pulse frequency tracking system

The simulated dependence for the / -th interpolation interval is

Xj-X

 .7 .7, „,

AH AH

where -Z; -i const.

The input frequency Fx is fed to the FCL 2 input of the interval determining block /, which converts the input frequency to the interpolation interval code. The outputs of the decoder of the interpolation intervals 3 control the switching of the reference frequencies F Zi from the sensor of the reference frequencies 5, which simulate the ordinates (Zi) of the function at the interpolation nodes. According to the principle of PChK 2, for each subsequent bit, the difference between the frequencies Fx and the sum of those binary frequency components, whose presence in the frequency F x is recorded at the previous bits, is received.

Thus, from the last bit of KLA 2, the FX-PX frequency is applied to the input of the LTK 4; -. LTK 4 in combination with the elements “And 7 and 8 forms multiplying-dividing devices (MDU). At the single output of the LTK 4 output trigger, rectangular duty cycle pulses are generated.

Fx-fxik

P-AH

where (FXi -F) corresponds to a lower frequency frequency control frequency band, during which time the frequency FZi passes to the output of the And 8 element. The average value of the pulse frequency at the output of the element "And 8

Fx-FXiRg.

i-. FAX

At zero output, output trigger

LTK 4 square squared impulses are formed

K-K-I - ... (L-)., (4)

during the lifetime of which on

the output of the element "And 7" receives pulses of frequency / - Zi-1 and the average value of the pulse frequency at the output of the element "And 7.

)

In the "OR} 0" scheme, the pulse sequences (3) and (5) are summed, and the result is fed to the input of the frequency-pulse tracking system.

Thus, the modeling dependence on the r-OM interval has the form

 P p, J - P,:,

(6) FAX is similar to expression (1).

Prede M e T invented and

Pulse-frequency linear interpolator containing dephirator, outputs of which are connected to potential inputs of two groups of elements “AND, pulse inputs of which are connected to outputs of sensor of reference frequencies, inputs connected to frequency divider, outputs of elements“ AND of each group are connected to corresponding element “OR element outputs

The "OR" is connected to the pulse inputs of the two elements "AND, and the outputs of the elements" AND through the third element "OR are connected to the input of the frequency-impulse servo system, and the radial trigger ring, characterized in that, in order to simplify the interpolator, it contains a frequency converter in the code, one input of which is connected to the interpolator's input, other inputs are connected to the outputs of the frequency divider, potential outputs of the converter are connected to the inputs of the descriptor, its frequency output is connected to the first input of the logic trigger ring, the other input of which is connected to the output of the frequency divider, and outputs triggerno0 second ring connected to voltage inputs of the two elements of the "I.

C: frequency divider

fo Viiirt UMl 1UI ALH p. +. P ir-n

. (7

1-1

, /