Instrumentation of Sequentially Shifted Shifting Register.

摘要

Instrumentation studies for signal-processing systems have led to a proposed device, called a Sequential Matched Filter, which requires a special adaptation of a digital shift register. A shift register consists of a linear array of n one-bit registers containing n bits of stored information which are moved forward one bit register upon the acceptance of each new sample to be stored. New samples are fed serially into the array. A conventional shift register shifts the n bits of information simultaneously at the sample rate; however, in the application under consideration here the desired operation is to handle only one bit of information at a time. The forward transfer of all n bits of information is effected by transferring the information in only one bit register at a time beginning with the nth register and successively transferring the information in the (n-1)th, the (n-2)th, etc. until all n bits have been transferred one position. This latter operation is hereafter called sequential shifting. This technical memorandum proposes three possible solutions to the problem of instrumenting a sequential shifting register for use in a sequential matched filter.