SU1337803A2 - Device for separating direct and transient components of reproduction signal - Google Patents

Abstract

The invention relates to a measurement technique and makes it possible to increase the fidelity of the selection of the stationary and non-stationary components of the reproduction signal. Blocks b and 7 of the comparison affect blocks 9 and 10 of the buffer memory. When the buffer storage unit 9 is closed, all samples from it are transmitted to the stationary characteristic component of the playback signal 11, which also receives the stationary results from the playback signal averaging unit 15. The buffer memory unit 10 acts on the playback signal averaging unit 15 and on the subtracting unit 16, from which the residuals of the difference go to the stationary characteristic component 13 of the playback signal. At the same time, it receives the remainder of the difference between the source data of the time series and the inversion series, which represents the stationary residue, which is formed at the output of the former 21 consecutive differences of inversions due to the successive differences of inversions from the non-stationary component. From the normalization and centering unit 17, this stationary residue enters the subtraction unit 18. The stationarity of this stationary residue is checked by comparison units 6 and 7. 1 il. S (L 00 so oo o oo oo)

Description

The invention relates to a measurement technique, in particular to devices for extracting stationary and non-stationary components of a reproduction signal.

The aim of the invention is to increase the fidelity of the selection of the stationary and non-stationary components of the reproduction signal.

The drawing schematically shows the proposed device.

The device contains serially connected block 1 reproducing block 4 of the serial comparison and the counter 5 of the number of inversions, the output of which is connected to the first inputs of the first and second blocks 6 and 7, the analysis block 2, the delay block 3, the 15th and second blocks 6 and 7 of the comparison and the first output to another input of block 2 of ana.piza, a supplementary subtractive block 18, connected by the first information input to the second day, the second inputs of which are connected to the JQ output of the delay unit 3 and output to the first and BTopEjiM c)) block 8 to other information the ion input of the RAM block, the first and second 13 characteristics calculation of the nonstationary blocks 9 and 10 of the buffer memory, the block component, and the reproducing signal of the stationary characteristics calculation, the additional block 19 of the signal of the playback signal memory, a connection of the first format, the first recording unit 12, the non-stationary component for calculating the characteristics of the reproduction signal, the second recording unit 14, the unit

the input of the output of the counter 5 of the number of inversions, the additional element 20 of the delay and the driver of 21 consecutive differences inver15 averaging the playback signal of the DA. Outputs of the first and second blocks

and a subtracting unit 16. The input of the operational memory unit 8 is connected to the output of the analysis unit 2. The information inputs of the first and second blocks 9 and 10 of the buffer memory are connected to the second output of the delay unit 3, the first control inputs to the output of the first comparison unit 6, and the second control inputs to the output of the second comparison unit 7. Characterization calculation block 11 - 40 body block 19 of buffer memory and

tick stationary component signal output to the information input of the block

playback is switched on between output 17 of normalization and centering, the second

the house of the first block 9 of the buffer memory and the output of which is connected to the second

the input of the first block 12 of the record. Block

13 calculating the characteristics of the unsteady subtractive unit 1B.

The single component of the playback signal is connected by an output to the input of the second recording unit 14. The first input of the subtracting unit 16 is connected to the first output of the playback signal averaging unit 15, and the second input, together with the input of the playback signal averaging unit 15, is connected to the output of the second buffer storage unit 10. The output of the subtracting unit 16 is connected to the first and second blocks 9 and 10 of the bunn with the information input of the 13fer memory unit. In block 4, the sequence

calculating the characteristics of the nonstationary comparison, the subsequent component of the signal is reproduced comparing each object of the settlement. The second output of the block 15 averaging counting with all subsequent.

No playback signal is connected to the input of analysis unit 2. The control input of the non-stationary characterization component of the reproduction signal component 13 is connected to the output of the second comparison unit 7 together with the second control inputs of the first and second blocks 9 and 10 of the buffer memory.

The device also contains a normalization and centering unit 17 connected by the first and second control inputs to the outputs of the first and second comparison blocks 6 and 7, respectively, and the first output to the other input of the 2 ana.pisa block 2, a complementary reading block 18 connected by the first information track to the second output of the block 3 of the delay and the output to another information input of the block 13 for calculating the characteristics of the non-stationary component; it will reproduce the signal, the additional block 19 of the buffer memory,

the input with the output of the counter 5 of the number of inversions, the additional element 20 delay and the driver 21 consecutive differences inver5

6 and 7, the comparisons are connected respectively to the first and second control inputs of the additional buffer memory unit 19, the first output of which is connected via an additional delay unit 20 to the first input of the sequencer 21 of the inversion differences. The latter is connected by the second input to the second output by the additional information input auxiliary I0telno0

The device works as follows.

Each current sample comes from the playback unit 1 to the analysis unit 2. From analysis block 2, the samples are sent to delay block 3, in which each sample is delayed by the sampling time and passed to block 4 of consecutive avg.

As a result of each comparison, an inversion signal is generated, equal to the level of the logical unit, if the previous count is greater than the next one, and the level of logical zero, if the previous count is less than the next one. Each value of the signal of the current inversion, equal to the level of the logic unit, is sent to the counter 5 of the number of inversions, in which the signal of the current inversion is calculated.

The analysis unit 2 acts on the RAM block 8, in which for each sequence number the values of the minimum and maximum inversions signals and the value of the current inversion signal are calculated. If, as a result of the comparison, it turns out that the current inversion signal is between the maximum and minimum inversion signals, then the measured reference value is considered stationary. Otherwise, the first comparison unit 6 generates a nonstationarity signal at the minimum of the inversion, and the second comparison unit 7 generates a signal device for separating the stationary and non-stationary components of the reproduction signal according to the author. St. No. 1051447, characterized in that, in order to increase the fidelity of the separation of stationary and non-stationary transient by the maximum inversion. If, after stationarity signals, signals of an unsteady-state component of the reproduction signal are received according to the maximum inversion, there is a change, the normalization block is entered into it

35

40

an increasing trend, and if, after stationary signals, signals of non-stationarity follow the minimum of inversion, there is a realization with a decreasing trend. Sequential alternation of nonstationarity signals according to the maximum and minimum of inversions characterizes the oscillatory trend.

The first and second blocks 6 and 7 of the comparison act on the first and second blocks 9 and 10 of the buffer memory. When the first block 9 of the buffer memory is closed, all samples from it are transmitted to the block 11 for calculating the characteristics of the stationary component of the playback signal, which also receives stationary results from the playback signal averaging unit 15. The second block 10 of the buffer chamber acts on the block 15 for averaging the playback signal and on the subtracting block 16. From the subtracting block 16, the residuals of the difference go to

45

and centering, connected by the first and second control inputs to the outputs of the first and second comparison blocks, respectively, and connected by a first output to another input of the analysis unit, an additional subtracting unit connected by the first information input to the second output of the delay block and connected to the output of another information input of the calculator characteristics of the transient component of the playback signal, an additional block of buffer memory, connected by an information input to the output of the counter ETS

inversions, an additional delay element, and a shaper of consecutive inversion differences; the outputs of the first and second comparison blocks are connected respectively to the first and second control inputs of the additional buffer memory block, the output of which is connected through the additional section 13 of the characteristics calculation; - the stationary component of the signal by the driver of the sequential

Inversion differences connected by a second input to the second output output. At the same time, it receives the remainder of the difference between the initial data of the time series and the pressure buffer storage unit and

versioned series representing stationary residual. This stationary residue is formed at the output of the former of 21 consecutive differences of inversions due to the successive differences of inversions from the non-stationary component. From the normalization and centering block 17, this stationary residue enters an additional subtractive block 18. In this case, the stationarity of this stationary residue is checked by the first and second blocks 6 and 7 of the comparison.

The use of the invention makes it possible to significantly increase the fidelity of the stationary and non-stationary components of the reproduction signal.

Claims (1)

Invention Formula A device for separating the stationary and non-stationary components of the reproduction signal according to the author. St. No. 1051447, characterized in that, in order to increase the fidelity of the selection of the stationary and non-stationary components of the reproduction signal, a normalization unit is introduced into it components of the reproduction signal, the normalization unit is introduced into it and centering, connected by the first and second control inputs to the outputs of the first and second comparison blocks, respectively, and connected by a first output to another input of the analysis unit, an additional subtracting unit connected by the first information input to the second output of the delay block and connected to the output of another information input of the calculator characteristics of the transient component of the playback signal, an additional block of buffer memory, connected by an information input to the output of the counter ETS inversions, an additional delay element and a shaper of consecutive inversion differences, the outputs of the first and second comparison blocks are connected respectively to the first and second control inputs of the additional buffer memory block, the output of which is connected through the additional buffer memory block and 513378036 connected by the output to the information input to the second information flow, the input of the normalization unit and the centering-additional subtractive block, the second output of which is connected to.