Multi-polar correlator

 

The invention relates to specialized computing devices, designed to determine the correlation functions of random processes. The technical result is the simplicity of the circuitry multi-polar correlator and reliability of functioning of the scheme. Multi-polar correlator consists of a ring of the distributor 1, comprising a generator of clock pulses 11 and triggers 21-2namplifier-limiter 3, the key schemes 41-4nthe first and second logical elements 5 and 9, a logical element OR 6, item 7, the storage element 8 and the pulse counter 101-10n. Due to the fact that multi-polar correlator configured to change the number of triggers the ring of the distributor, the correlator provides the change range of the study of random processes. 1 Il.

The invention relates to specialized computing devices, designed to determine the correlation functions of random processes.

A wide class of correlators described in [1].

Analog is multi-polar correlator copyright of svidetel is 2, auxiliary triggers 3 and 4, the key circuits of the first group 51-5nkey circuits of the second group 51-5m, diodes 6 and 7, the amplifier-limiter 8, the logic element And 9 and the pulse counter 10. However, this multi-polar correlator does not have high accuracy, because it takes into account the number of pulses=0 in the absence of the signal.

The prototype is a multi-polar correlator copyright testimony 444194 [2], consisting of an annular distributor 1, comprising a generator of clock pulses 11 and triggers 21-2nthe first and second auxiliary triggers the first group1and 41the first and second auxiliary triggers the second group2and 42key circuits of the first group 51-5nthe first and second keys of the second group 51and 5m, diodes 6 and 7, the amplifier-limiter 8, the first and second logic elements And 91and 92the counters 101-10n, schema zero first auxiliary trigger 12 and the logic circuit OR 13 and 14.

However, this multi-polar complex correlator in technical execution due to the use of the sub>1and 32and 42, schema zero first auxiliary trigger 12.

The aim of the invention is the simplicity of the circuitry multi-polar correlator and reliability of functioning of the scheme.

This goal is achieved by the fact that the output of the amplifier-limiter connected to the second input of the second element And the output of the first key is connected via a storage element with a first input of the second element And to the input element and to the first input element OR the output element through the second input element OR is connected with the second input of the first element And whose output is connected to the first counter and the trigger output is connected to the first input of the first element And the triggers are when pulses to open key schemes, as the pulses from the output of the second element And through the core schemas arrive at the inputs of the counters.

Functional electrical diagram of the multi-polar correlator shown in the drawing and consists of a ring of the distributor 1, comprising a generator of clock pulses 11 and triggers 21-2namplifier-limiter 3, the key schemes 41-4nthe first and second logical elements 5 and 9, logicalchannel polar correlator operates as follows. From the output of the generator 11 clock pulses are received at the inputs of triggers 21-2nring of the distributor 1. Upon actuation of the first trigger 1's output pulse voltage is supplied only to the control input key scheme 41and the first input of the first logic element And 5. The pulse voltage from the outputs of the triggers 22-2nis supplied to the control inputs of the respective key schemes 42-4n.When receiving a pulse from the output of the first trigger 21the annular valve 1 opens a switching circuit 41through which the amplified input signal is supplied to the input storage element 8. Memorized polar signal at the first input of the second element And 9. And to the second input of the second element And 9 is continuously applied current value of the amplified input signal. With the release of the second element And 9 removed signal only during trigger 22-2nif it matches the polarity of the current signal values and stored in the respective counters 102-10nreceived input signal, and the first counter 101only counts cycles of the correlator. Element OR 6 is configured to positive creativily impulse. As to the first input of the first element 5 receives the signal from the first trigger 21ring of the distributor 1 is also positive, the output of the first element And 5 on the first pulse counter 101signal only when the signal of either polarity. Thus, in the absence of an input signal from the output of the first element 5 is not supplied to the counter 101the pulse and the storage element 8 does not fix the polarity of the input signal, therefore, increases the accuracy of the correlator.

When pulse to the second trigger 22opens the key diagram 42and if the values from the storage element 8 and the current signal coincide at the inputs of the second element And 9, it exits through the open key scheme 42at the input of the counter 102receives a pulse. Similarly trigger key scheme 42-4nand the counters 102-10n.

At the end of one cycle of operation of the ring dispenser 1 in the first trigger 21again the impulse that leads to memorize the new current value of the input signal, and thereafter the cycle is repeated.

After the time required to identify the significant correlation number, recorded in the corresponding counter to the number registered in the first counter. The normalized correlation function of the random process is through the probability p(as function of delayp()=-cos2p().

Define ordinate normalized correlation function corresponds to the number of cells ring of the distributor 1 and the discrete values of the arguments is a multiple of the period of the clock 11.

The frequency range of the study of random processes can be changed by changing the frequency of the clock 11, and the change in the number of defined points of the correlation function by changing the number of triggers 21-2nring of the distributor 1.

As shown above, the developed multi-polar correlator has a simple circuit configuration and high precision work.

Sources of information 1. Rowinski Century. And., Orchowski C. F. Correlation device. M: Energy, 1974.

2. Copyright certificate 327495 published 26.01.1972, Bulletin 5.

3. Averscheduleservice polar correlator, containing ring dispenser, consisting of a clock, triggers, inputs of which receive impulses from the generator, the amplifier-limiter, the first key and the key circuit, the first and second elements And the first pulse counter and the counters, the element OR, characterized in that the output of the amplifier-limiter connected to the second input of the second element And the output of the first key is connected via a storage element with a first input of the second element And to the input element and to the first input of the OR element, the output element through the second input element OR is connected with the second input of the first element And whose output is connected to the first counter, and the output of the first flip-flop connected to the first input of the first element And the triggers are when pulses to open key of the scheme, and the pulses from the output of the second element And through the core schemas arrive at the inputs of the counters.

 

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