Non-linear parallel filters and circuits for their optimisation
R. Woodcock · Spiral (Imperial College London) · 1960
2.suitable for use in numbers to form the products of the signal samples.Although the development was successful, these multipliers are not used in the filter as T.P.L. ' t Wilby invented a simpler device.Analogue circuits are described for the calculation of the optimum values of the coefficients co , Ci , 02 etc., and a method of selecting the important parameters is proposed.Results are given of tests on the filter which demonstrate the optimisation process.3.