Accession Number:

AD0404064

Title:

DEVELOPMENT OF LEAD SELENIDE DETECTOR ARRAY. VOLUME 2. PASSIVE DETECTION STUDY

Descriptive Note:

Corporate Author:

GENERAL PRECISION INC GLENDALE CA

Personal Author(s):

Report Date:

1963-04-01

Pagination or Media Count:

96.0

Abstract:

The research complements present detection theory by providing a useful mathematical statement of the ideal requirements for systems endeavoring to detect time-variant stochastic signals in the presence of Gaussian noise. The a posteriori probability approach is employed to state the sufficiency conditions in general form these are then reduced to a useful set of requirements for an ideal detection system through series representation of arbitrary signals. The results show that a detection system can only provide estimates of relevant information appearing in a signal-plus-noise quantity inferences drawn from these estimates subsequent to detection will say something about signal present. The results clearly state, therefore, that a detection system is fundamentally an information detector, and not a detector of signals. Present detection methods are shown to be approximations to the ideal requirements developed. The ideal requirements are evolved in a form which permit possible logical improvements to present methods. Subsequent signal processing of detection system output receives some attention. Maximum likelihood is considered, as well as an approximate system model based on a particular interpretation of pseudo-constant signal detection which leads to maximum use of detected quantity.

Subject Categories:

  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE