SU562830A1 - Correlation Analysis Device - Google Patents

Description

(54) DEVICE FOR CORRELATION ANALYSIS

The invention relates to computing technology and can be used to analyze non-linear objects in various fields of science and technology, for example, in scientific research in biology and medicine to identify biological structures at the cellular and tissue levels, etc.

Relay correlation devices are known that contain multiplying blocks, averagers, and sign blocks ij. The disadvantage of these devices is that they cannot be used to identify non-linear objects of study.

It is also known a correlation device used to analyze a wide class of random processes whose stochastic connections are essentially nonlinear 2.

This device contains a correlator, the first input of which is the first input of the device and connected via a serially connected key and block}) of the symbol function to the first input of the multiplication unit. It allows

Analyze more broadly a class of functions. In it, the first input of the corrector is connected to the input of the forming unit of the sign function, the output of which is connected to the input of the multiplication unit, the output of which is connected to the second input of the correlator. However, the above device does not allow to determine the characteristics of the studied nonlinear objects under the influence of random processes in deep-well conditions.

The purpose of the invention is to expand the functionality of the device for the correctional analysis.

This is achieved by the fact that three switches, an accumulation unit, a variable divider, voltage, a division unit and a clock unit, whose input is connected to

0 to the first output of the first switch, and the output to the first input of the accumulator unit, the second input of which is to the connection; with the second output of the first switch, the input of which is connected to the output of the correll5 to 5) a, the second input of which is connected to the DUT 0101 of the second switch, the first of which is connected to the first input of the device, and the second through the third switch of the socket with the second input of the device the variable voltage healer is connected to the first input of the division unit, the second input of which is connected to the first input of the first switch, the second output of the third switch is connected to the second input of the multiplication unit. It becomes possible with the help of this device besides analyzing a wide class of random precess definitions. coefficients of the polynomial characteristic containing 2 terms of nonlinear objects in natural conditions. A correlation scheme for determining the coefficients o and g of polynomials containing two terms is shown in the drawing. The described correlation device contains a correlator (dispersiometer Ij multiplication unit 2, sign function generation unit 3, key 4, switch 5 and also division unit 6, accumulation unit 7, variable voltage divider 8, clock unit 9 and switches 10 and input 1 dividing unit 6 is connected via switch switch. Yu is connected to the output of correlator 1, and input I via a variable voltage divider 8 is connected to output of accumulation unit 7. Accumulator unit 7 is connected via output switch 1O to correlator output 1. The output of the clock unit 9 is connected About the 1st input of the accumulation unit 7, and the input through the switch 1O is connected to the output of the correlator 1. The device operates as follows. First, the normalized autocorrelation function (dispersion) p (O), key 4 and switch 5 are in position P, and switches 10 and 11 in position 1. At the same time, the correlation device operates in the measurement mode of the autocorrelation function: the accumulator 7 is connected to the output of the correlator 1, and an electrical signal proportional to (0) s output correl torus 1 comes in b accumulation lock. Then, the cross-correlation function P x.v (O) is measured, key 4 is in position I, switches 5, 10 and 11 are in position II. At the same time, the device operates in the mode of measuring the function of mutual correlation of objects of odd degrees, and the block 6 is connected to the correlator 1 through switch 10 and, through the switch 10, clock 9, the electrical signal from the correlator 1 stops to the 1st input of the target unit 6 and simultaneously to the clock unit 9, from the output of which the readout signal goes to accumulation unit 7, from the output of which through the variable voltage divider 8 (the division value of which is set depending on CTenevm odd) en. polynomial), the signal is proportional to Px, x input block of the target. In this case, the output of dividing unit 6 yields an electrical voltage proportional to the coefficients. (That odd term of the polynomial. Again, the normalized autocorrelator of the inoinate is measured in a similar way, the function P x- is fed to the corresponding lean electric signal at block 7; the correlation of objects of even degrees p ,,,, (О), key 4 and switch 5 are in position I, and switches Yu and 11 are in position I. At the same time, the device operates in the mode of measuring the function of mutual correlation of objects even Now, the dividing unit 6 is connected to the output of the correlator of the torus 1 and the clock unit 9 through the switch 10, and the signal proportional to P-J & ICT-TTUX output of the correlator to the post to the 1st input of the dividing unit 6 and simultaneously to the clock block 9, from the output of which the signal is read by the accumulative block 7, from the output of which through the variable divider 8, for example, whose dividing value is set depending on the degree of an odd number of the nominal), a proportional signal is received; p, y (O) at Q, and the input of the dividing device 6, an electric voltage is obtained proportional to the coefficient of the odd member of the polynomial. Thus, when determining the coefficients of the polynomial characteristic of nonlinear objects in natural conditions, for example, of the form y Q x -v L x where the quince coefficients are determined by Co) by the formulas t a -t Xu tag-pjo) -h; 2