A novel method for optimal sampled data selection, transmission andreconstruction: a proposal

摘要

A technique that reduces the number of samples needed forreconstructing the signal is proposed. The signal is sampled above itsnyquist rate and from the sampled data, essential samples, called as keysamples, are identified and picked out. Three different implementationsusing analog circuits, digital circuits and a microprocessor basedcircuit are reported and their performances are compared. The keysamples are provided by the circuit, together with a clock count dataand a marking signal. The count data indicates the delay of the presentkey sample from the occurrence of the previous key sample. A signalreconstructing circuit for the optimal sampler also is reported. Thevalidity of the technique is verified with a computer generated testsignal. The proposed technique therefore allows data compression andreduces storage and transmission requirements