Accession Number : AD0725112

Title :   Envelope Correlation of Undersampled Data by Digital Processing,

Descriptive Note : Research rept.,

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I

Personal Author(s) : Cron,Benjamin F. ; Nuttall,Albert H.

Report Date : 25 MAR 1971

Pagination or Media Count : 29

Abstract : Digital computers can be used to obtain the complex envelope correlation of undersampled data. To obtain the complex envelope of the original process, a band of frequ easily shifted down to a center frequency of 0 Hz. A quantitative comparison of the theoretical and computed results shows that the digital method was accurate when employed for two specific examples of a sinc pulse and a linear FM pulse. (Author)

Descriptors :   (*SONAR SIGNALS, SPECTRUM ANALYZERS), (*INFORMATION THEORY, STATISTICAL ANALYSIS), DATA PROCESSING, STATISTICAL FUNCTIONS, CORRELATION TECHNIQUES, COMPUTER PROGRAMS, SAMPLING, POWER SPECTRA

Subject Categories : Statistics and Probability
      Cybernetics
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE