The Application of Digital Shift Registers to Active Correlation Sonar.

摘要

A digital shift register should operate satisfactorily as a matched filter in the detection of pseudorandom signals for a correlation sonar. It appears that a filter designed to match a known signal after clipping should be the most satisfactory system. Doppler can be handled by properly spaced sets of taps from a single filter, one set for each increment of doppler.