Impulse series selector

FIELD: radio engineering and impulse engineering, possible use for selection and measurement of parameters of regular and random impulse series.

SUBSTANCE: impulse series selector contains input impulse generator (1), at first and second outputs of which impulses of constant duration are generated, proportional to amplitude of input impulses, corresponding to rise-up and descending parts of input impulses respectively, delay blocks (2,4,5,7), AND elements (3,12), adder (6), multi-level amplitude selector (8), commutator (9), triggers (10,13), keys (11,14,15), and computing device (16). At first output of selector one periodical series of impulses is received with preservation of its amplitude. At second output of selector, all impulses are received with given amplitude and duration both from periodical series and those that appear in random time moments. At third output of selector all remaining impulses which may be used for further analysis are singled out. At fourth output of selector, impulses with given amplitude and duration, which appear in random time moments, are singled out.

EFFECT: expanded functional capabilities when analyzing and processing impulse series due to usage of informative impulse parameters.

2 dwg

 

The proposed selector applies to electrical engineering and can be used in radio devices for various purposes for selection of pulse sequences with the given parameters, and also for measuring the parameters of a periodic sequence of pulses.

The known device allocation periodic pulse signals based on the time parameters of the analyzed sequence (see, for example, U.S. patent No. 3922676, ed. mon. No. 477531, 894851, 1691938, patent No. 2173935 and others).

Known devices of allocating periodic pulse signals closest to the proposed selector is a selector pulse sequence in patent No. 2173935, M CL 7 NC 5/19, from 18.04.2000 year and selected for the prototype.

The disadvantage of the prototype is that it does not allow discriminates pulses with specified parameters in the duration and amplitude appearing at random points in time, and does not pass to the output of the selector other impulses, not belonging to a given periodic sequence. This fact limits the possibilities for further processing and analysis of the input sequence of pulses.

Object of the invention is to enhance the functionality of the prototype, namely the possibility of selection pulses with specified what parameters in amplitude and duration, but appearing at random points in time, and the allocation of all other pulses at the output of the selector.

The problem is solved in that the selector pulse sequence containing the input shaper pulses, an input connected to the input bus and to the input of the third delay unit, the output of which through the key connected with the first output, the first output of the input shaper is connected to the inputs of the first and second delay blocks, the output of the first delay unit is connected to the second input of the first element And the output of the second delay unit connected to the second input of the adder and to the third input of the first element And to the first input of which is connected to the second output of the input shaper, the output of the first element And connected to the first input of the adder, the output of which is connected in series through a multilevel amplitude selector and a switch connected to a single input of the first flip-flop to the zero input of which is connected to the output of the fourth delay unit, and the trigger output is connected with the control input of the first key, inputs of the second element And the second trigger, the second and third keys and subtractive device, and the first and second inputs of the second element And connected respectively with the first and second inputs of the first element And the second element is connected to the input of the fourth delay unit and to a single input of the second trigger, to the zero input of which is connected to the output of the fourth delay unit, the unit and the zero outputs of the second trigger connected respectively to the control inputs of the second and third keys, to the signal inputs of which are connected to the output of the third delay unit, the outputs of the second and third keys are respectively the second and third outputs of the selector outputs the first and second keys are connected with the inputs of subtractive device, the output of which is the fourth output of the selector.

A structural scheme selector is presented in figure 1, and timing diagrams explaining the principle of its operation is shown in figure 2.

The selector pulse sequence contains the input shaper pulses 1, an input connected to the input bus and to the input of the third delay unit 5, the output of which through the first key 11 is connected to the first output of the selector. The first output driver 1 is connected to the inputs of the first 2 and second 4 units of delay. The second output of the input driver 1 and the output of the first delay unit 2 is connected respectively to first and second inputs of the first 3 and the second 12 elements And. the output of the second delay unit 4 is connected to the second input of the adder 6 and the third input of the first 3 elements And whose output is connected to the first input of the adder 6. The output of the adder 6 via the placenta is therefore United multilevel amplitude selector 8 and the switch 9 is connected to a single input of the first flip-flop 10. The output of the second element 12 And is connected to the fourth input 7 delay unit performing a delay time equal to a given pulse duration tAndand with a single input of the second 13 trigger, and to the zero inputs of the trigger 10 and 13 connected to the fourth output 7 of the delay block. A single trigger output 10 is connected to the control input of the key 11. A single release of the second part 13 of the trigger 1 is connected with the control input of the second key 14, and its zero output is connected to a control input key 15 signal inputs of the keys 14 and 15 is connected to the output of the third 5 of the delay block. Exit key 14 is the second output of the selector, which is connected to one input of subtractive device 16, a second input connected to the output of the key 11, and the output of subtractive device 16 is the fourth output of the selector. The output of the key 15 is the third output of the selector.

The proposed selector works as follows. Input pulse sequence (figa), which are periodic sequence of pulses, pulse amplitude and duration of which coincides with the amplitude and pulse width of the periodic sequence, but appear at random points in time (in the drawing from the periodic sequence of pulses they differ in a different shade), and the pulses from the other what their options are served at the input shaper 1 and 5 on the third unit delay. The first output of the input shaper 1 pulses of constant duration proportional to the amplitude of the input pulses and their corresponding leading edge (figb), and on the second output - similar pulses corresponding to the rear edge of the input pulse (pigv), served on the first inputs of the first 3 and the second 12 members, but on the second inputs of these elements pulses from the first output driver 1, which is delayed in the first 2 unit delay time is equal to a specified pulse duration tand(Figg). The pulses from the first output driver 1 is delayed in the second unit 4 is delay - on time is equal to the sum of the given repetition period Tandand pulse duration tand(figd), and served on the third inputs of the first 3 elements And. At times, when all three inputs of the element And 3 are the signals that carry information about the duration, period and amplitude of the pulses at its output pulses appear (fige). Similarly, when both inputs of the second element 12 And there are signals that carry information about the amplitude of the pulses and their duration at its output pulses appear (figs). As can be seen, the output element And 3 pass pulses from a periodic sequence of pulses, and the output And 12 pass all pulses with a given amplitude and permanent is steadily increasing. The pulses from the output element And 3 are received at the first input of the adder 6, the other input of which pulses from the output of the second 4 of the delay block. At the output of the adder 6 appears pulses (figs), served on multi-level amplitude selector 8, where, depending on the total amplitude of the input pulses are divided by level (Figi). Each channel of the multi-level amplitude selector 8 transmits on its output pulse only when the amplitude of the total voltage Uclies in some interval of values of Umin<Uwith<Umaxdescribing this channel. The switch 9 allows you to connect to a single input trigger 10 any channel multilevel amplitude selector 8. When power is applied, for example, at the k th level (Figi) multilevel amplitude selector 8 these pulses through the switch 9 (FIGC) are fed to the single input of the first trigger 10 and the cutting edge install it in one state. In the zero state, the trigger 10 is set by the pulses from the output of the fourth delay unit 7 (Figl), in which the delay of pulses at a time interval equal to the specified duration of tand. The trigger output 10 pulses appear (film), which open the first key 11. To the second input of the key pulses from the output Thur is REGO 5 delay unit, delayed for a time equal to the specified pulse duration (fign). Thus, to the first output of the selector in this case, a periodic sequence of pulses with preservation of its amplitude (fihp). The pulses from the output of the second element 12 And (Figg) served on a single input of the second 13 trigger, setting it in one state. In the zero state the trigger is set by the pulses from the output of the fourth 7 delay unit (Figl). On a single trigger output 13 appears pulses, the duration of which is equal to a given (figr). These pulses to the control input of the second key 14, opening it. At the signal input of the key pulses from the output of the third 5 delay unit (fign). Thus, the second output of the selector are all pulses with a given amplitude and duration as from the periodic sequence, and appear at random points in time (fight). The zero output of the trigger 13 there is high voltage in the moments when a single output is zero volts (figs). This voltage is applied to the control input of the third 15 key, opening it, and to the second input of this switch is energized from the output of the third 5 delay unit (fign). Thus, the third output selector selects all the remaining pulses (Figo)that may used for further analysis. The pulses from the output of the keys 11 (fegp) and 14 (fight) served on subtractive device 16, and the fourth output selector will select a pulse with a given amplitude and duration, but appear at random points in time (high).

Thus, using the proposed selector inputs of the second element And the second trigger, two keys and subtractive device, in a certain way connected to the prototype, allows you to extend the functionality of the prototype selection pulse sequences with the given parameters.

The selector pulse sequence containing the input shaper pulses at the first output of which pulses of constant duration proportional to the amplitude of the input pulses at the moments corresponding to the leading edge of the input pulse and the second output - similar pulses at the moments corresponding to the rear edge of the input pulse, the input of which is connected to the input bus and to the input of the third delay unit, the output of which through the key connected with the first output, the first output of the input shaper is connected to the inputs of the first and second delay blocks, the output of the first delay unit is connected to the second input of the first element And the output of the second delay unit connected with a second input of the su is the transformer and to the third input of the first element And to the first input of which is connected to the second output of the input shaper, the output of the first element And connected to the first input of the adder, the output of which is connected in series through a multilevel amplitude selector and a switch connected to a single input of the first flip-flop to the zero input of which is connected to the output of the fourth delay unit, and the trigger output is connected with the control input of the first key, characterized in that it additionally introduced the second element And the second trigger, the second and third keys and subtractive device, and the first and second inputs of the second element And connected respectively with the first and second inputs of the first element, And the output of the second element And is connected to the input of the fourth delay unit and a single input of the second trigger to the zero input of which is connected to the output of the fourth delay unit, the unit and the zero outputs of the second trigger connected respectively to the control inputs of the second and third keys, to the signal inputs of which are connected to the output of the third delay unit, and the outputs of the second and third keys are respectively the second and third outputs of the selector outputs the first and second keys are connected with the inputs of subtractive device, the output of which is the fourth output of the selector.



 

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