Accession Number : AD0851094

Title :   Antenna Processing for Target Detection in a Nonuniform Clutter Background: The Time-Invariant Case,

Corporate Author : HUGHES AIRCRAFT CO CULVER CITY CA ANTENNA DEPT

Personal Author(s) : Young, G. O. ; Howard, J. E.

Report Date : FEB 1969

Pagination or Media Count : 99

Abstract : The generalized likelihood ratios needed for detection and other types of hypothesis tests are presented for the case of time-invariant input signals, clutter, noise, etc., for N antenna elements, K targets, K' discrete clutter sources, and uniform background clutter and receiver noise. The targets and clutter considered were assumed to be nonscintillating. Specific likelihood ratio tests are also given for the detection of one or more targets versus no targets, and a block diagram of a detector that performs these tests is shown. Time- and space-saving computing techniques are described that reduce the complexity of these very general tests. Probability distributions are also presented that are immediately applicable to estimation as well as to hypothesis testing and that result in a substantial savings of effort in the synthesis of estimators for decision-theoretic antenna systems. (Author)

Descriptors :   (*RADAR SIGNALS, DATA PROCESSING), (*SURFACE TARGETS, RADAR CLUTTER), DETECTION, RADAR ANTENNAS, NOISE(RADAR), RADAR TARGETS, PROBABILITY, DECISION THEORY.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE