Accession Number : AD0718803

Title :   Correlation of Quantized Guassian Processes,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Rumsey,Daniel L.

Report Date : 07 SEP 1970

Pagination or Media Count : 120

Abstract : The well-known Polarity Coincidence Correlator was originally developed to simplify the electronics involved in making an Analog Correlator while roughly approximating its output. The Polarity Coincidence Correlator clips the two input signals about their means and compares the resulting signals for polarity to determine the degree of correlation. No amplitude information is used in this system. The idea of clipping each input signal into two regions, as in the Polarity Coincidence Case, is extended to quantizing each input signal into a greater number of regions. The resulting signals are then compared by region, weighted and summed for the degree of correlation. An expression for the output signal-to-noise ratio for this new type of correlator is developed and compared with the output signal-to-noise ratio of the Analog Correlator (ANC) and the Polarity Coincidence Correlator (PCC). It is shown that a good deal of improvement is achieved over the ANC and PCC under certain operating conditions. The theory behind these new types of correlators is developed for three and four region clipping to show the feasibility of these correlators as possibly better alternatives to the Polarity Coincidence Correlator. (Author)

Descriptors :   (*INFORMATION THEORY, CORRELATION TECHNIQUES), (*CORRELATORS, MATHEMATICAL ANALYSIS), SIGNAL-TO-NOISE RATIO, STATISTICAL PROCESSES, ANALOG SYSTEMS, COMPUTER PROGRAMS, THESES

Subject Categories : Electrical and Electronic Equipment
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE