Circuit for determining best fit to input signals.

摘要

A network comprising analog amplifiers (10) with a resistive interconnection matrix (20) that connects each amplifier output to the input of all other amplifiers. The connections embodied in the matrix are achieved with conductances whose values are computed in accordance with the set of decomposition functions for which the solution is sought. In addition to the specified connectivity implemented further included is a second matrix (30) that connects externally applied voltages to the amplifier inputs via resistors whose values are also computed in accordance with the set of decomposition functions for which the solution is sought. Still further and in accordance with another aspect of the invention, means (40) are included for varying the amplifier gains from an initial low value to an ultimately high value in the process of arriving at a solution to an applied problem.