Digital Correlator Speed Improvement by Multiplexing.

摘要: Abstract : Digital correlators can detect the presence of a reference binary code within long sequence bits. Correlation is an essential in proposed spread spectrum applications to future target identification interrogation/reply systems. High rate pseudorandom codes be used achieve transmission security and resistance interference jamming by spreading bandwidth. correlation provides reliability cost benefits through use modern digital integration techniques but has been limited speed. Several approaches time division multiplexing correlator devices, whereby k operations are overlapped time, developed this report. Where synchronization with input signal exists, resulting multiplexed provide k-times speed improvement over individual devices. A completely synchronized formed from such proper selection outputs. simplified realization presented that only requires one set N/k-bit registers sets N-bit comparator circuits. Laboratory experimentation computer simulations support these concepts described. (Author)