SU943773A1 - Pulse train period linear extrapolator - Google Patents

Description

one

The invention relates to the field of computational tech- nics, and it can be an aerial & call | O to compensate for the delay in frequency-pulse ACS, for restoring the envelope of signals with perird modulation, etc.

A linear analogue extrapopor containing an operating device, an analog shift register, cocden- der switches, a comparator, key circuits, field-effect transistors, and fl switches are known.

The disadvantage of such a device is the limited accuracy due to the addition of analog elements, as well as the possibility of extrapolation to. one period, since with T | t k. is an unknown quantity.

The closest in terms of technical dryness to t of inference is an extrapolator containing a frequency-pulse converter, a trigger, a group of delay elements, a subtractor 2j.

In a well-known extra- lator, linear extrapolation is carried out, for a constant time T, equal to the delay time of the signals in the delay line.

The drawback of the device is the impossibility of predicting f (-t) for one period, since the value of t is determined by the parameters of the linear extrapolator and is constant.

The purpose of the invention is to extend the functionality by extrapolating period-modulated signals.

--4-V, - .. (Oh

where A and B are the modulator parameters; c is the modulating function for a variable time equal to period I.

Claims (2)

The goal is achieved by the fact that a memory register, an output register, are entered into an extrapolator containing an analog-to-digital converter, the input of which is connected to the input of an extrapolator. 394 sawtooth generator, knife and counter, with the input of the ext ppoltor directly connected to the first inputs of the memory register, the output register and the counter, and through the saw voltage generator with the frequency input of the multiplier whose code input is connected to the output of the memory register The second input of which is connected to the output of the analog-digital converter, the output of the multiplier is connected to the second input of the counter, the output of which is connected to the second input of output 1L) of the register. the output of which is connected to the output of extras of proshgore. The drawing shows a block diagram of an extrapoltor. The extrapolator contains an analog-to-digital converter 1, a saw-tooth voltage generator 2, a memory register 3 multiplier 4, an output register 5, a counter 6. The extrapolator works as follows about an amp | From converter 1 for each input pulse, the bit register in memory 3 records the value of the code, where (U.-T.2 is the scale factor, and the generator 2 is started, the output of which generates a pulse sequence with frequency Ht T In the interval between h and and 1. The pulses in the memory 3 register are stored by the previous period. Binary multiplier 4 multiplies the gpc code, its output frequency F 1 NH-I AV gpc "is integrated by counter 6, Tog.G, By the end of the period T and y T n .JyninFi c- ,, .P vi-i zha m-h - I with the next recording impulse It is sent to the output register, Kv is recorded into the memory register of the TC генератор, the TC generator 2 and converter 1 are started. The back of the input pulse sets O in the counter 6, 34 The form: ω (5) describes the linear law of the extrapopic period. the extrapolative formula of the first order ij fb) tt H tt-l Expressing T through f from formula (1) is obtained after transformations. Thus, after the arrival of the input pulse in the output register 5, a code proportional to the coefficient Tu is written. Investigator. However, the device performs a linear extrapolation of the signal with a period modulation for a time equal to the first period. the result in the form of a code forms immediately after the arrival of the next input pulse, i.e., the speed is determined only by the time of the code code from the counter to the output register. Claims of the invention Linear. Extrapolator of the pulse period, containing an analog-to-digital converter, the input of which is connected to the input of an extrapolator, which is typical. By the purpose of clearing the functionality by providing extrapolation of the signals with period modulation, a memory register, an output register, a sawtooth generator, a multiplier and a counter are entered into it, and the extrapolator input is connected directly to the first inputs memory register, output register and counter and through a saw-tooth voltage generator: With a frequency input multiplier, the code input of which is connected to the output of the memory register, the second input of which is connected to the output analog-digital th transducer, the output of the multiplier is connected to the second input of the counter, the output of which is connected to the second input of the output register whose output Median yield extrapolation torus. Sources of information taken into account in the examination 1. USSR author's certificate number 503256, cl. G06 G 7/30, 1974. 2. USSR author's certificate number 596970, cl. G06 G 7/30, 197 (prototype).