Accession Number : AD0437937


Title :   RADAR ACCURACY AND RESOLUTION IN A MULTIPLESIGNAL ENVIRONMENT,


Corporate Author : STANFORD UNIV CALIF STANFORD ELECTRONICS LABS


Personal Author(s) : May,Bill B


Report Date : Jan 1964


Pagination or Media Count : 88


Abstract : The multiple-signal environment involves received data consisting of the sum of several signals and noise. Often the signals differ only in certain parameters such as amplitude and time of arrival. The measurement of these parameters is straightforward when the signals are separated in time; however, when the signals overlap in time, the receiving problem becomes difficult because the signals themselves act as interference in addition to the noise. Various receivers have been devised for the multiple-signal environment in this study. The goal in the derivation of these receivers is the display of the desired information in an accurate and convenient form. The optimum linear receiver, derived under an appropriate criterion, is shown to make possible a considerable improvement in data display as compared with that of the conventional matched filter. Only a small degradation in noise performance results; and the complexity, although greater than that of the matched filter, is well within reason. The optimum receivers derived in the nonlinear class are of quite complex form; this fact, along with the nonlinearity, hinders an exact analysis. However, certain calculations indicate that a significant improvement in data presentation might be possible with little or no degradation in noise performance as compared with that of the matched filter. (Author)


Descriptors :   *RADAR SIGNALS , RESOLUTION , NOISE(RADAR) , TIME , MEASUREMENT , RADAR INTERFERENCE , RADAR RECEIVERS , LINEAR SYSTEMS , ELECTROMAGNETIC WAVE FILTERS , RADIOFREQUENCY FILTERS , NONLINEAR SYSTEMS , ERRORS , ATTENUATION


Distribution Statement : APPROVED FOR PUBLIC RELEASE