| 摘要 |
Digital recurrent filter has the input module 1 containing the subtractive device S1 of the output signals of amplifiers with coefficients of transmittance of the proper operator a0,àan-1 from the input signal of the filter x, the output filter module 3, composed of summer S3 of the output signals of amplifiers with coefficients of transmittance of the action operator b0,àbm and functional module 2 including the chain connected operation units 4 composed of the chain connected correcting amplifier U2, summer S2 of the input signal of correcting amplifier U2 and delay element Z2, the operation unit 4 input is the input of correcting amplifier U2, whose change of the change of reinforcement coefficient gives a possibility to correct the frequency characteristics of the filter, the inputs of amplifier of the input module 1 are connected with the outputs of the elements of delay of operation units Z2, and the inputs of amplifier of the output module 3 are connected to the outputs of summers S2 of operation units 4.
|
