Accession Number : AD0659138

Title :   ANTENNA SYSTEM OPTIMIZATION BY TRANSCOHERENCE FUNCTION MAXIMIZATION: THEORY,

Corporate Author : HUGHES AIRCRAFT CO CULVER CITY CALIF ANTENNA DEPT

Personal Author(s) : Young,G. O. ; Ksienski,A. A.

Report Date : DEC 1966

Pagination or Media Count : 91

Abstract : A definition of the transcoherence or transcorrelation function and the meaning of the degree of coherence are presented. The transcoherence function is derived for a general information-carrying field. Classical optical coherence theory is discussed, and the relationship between the classical definitions and the coherence functions defined in this report is derived. It is shown that first order coherence theory can describe gaussian processes, but that a higher order theory is necessary for nongaussian functions. Such a higher order theory is then developed. The relationship between information theory and the transcoherence function for space-time information-carrying systems, such as antenna processing systems, is presented. Maximization of the transcoherence function is shown to be equivalent to maximization of the space-time information content at the output, relative to the desired input. Related subjects such as stationarity, ergodicity, regression, and estimation are also discussed. (Author)

Descriptors :   (*ANTENNAS, OPTIMIZATION), DATA PROCESSING, THEORY, MEASURE THEORY, STATISTICAL PROCESSES, REGRESSION ANALYSIS, MATHEMATICAL ANALYSIS, CORRELATION TECHNIQUES

Subject Categories : Electrical and Electronic Equipment
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE