Programmable, four-channel, 128-sample, 40-Ms/s analog-ternary correlator

Abstract

The authors designed, fabricated, and tested a four-channel, analog-ternary charge-coupled device (CCD) correlator that extends the state of the art in several important areas. In addition to a sampling rate up to 40 Ms/s, dynamic range of 66 dB, and nonlinearity below -50 dB, the device exhibits a level of integration and user-friendliness not previously available. The correlator is intended for use in communications and radar systems where pseudonoise codes are used