Accession Number:

AD0488504

Title:

EXTRACTING ANALOGUE SIGNALS FROM NOISE USING A DIGITAL COMPUTER.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Barrett, Neil A.

Report Date:

1966-05-01

Pagination or Media Count:

148.0

Abstract:

It is frequently convenient in data processing to convert analogue to digital data for computer assimilation. A convenient method of such conversion has been developed and used in the study of correlation detection of the audio signals corrupted by noise. A method to use apriori knowledge of the corrupting noise to increase processing gain has been studied. In the case of detection of a sinusoid in noise, an additional gain over convertial auto-correlation of up to 14.5 db has been achieved. Finally, a signal source located in an unknown random noise field was detected classified and located in relative bearing by the cross-correlation of the signals received from two spatially separated sensors. Author

Descriptors:

• *ANALOG TO DIGITAL CONVERTERS
• STATISTICAL FUNCTIONS
• DIGITAL COMPUTERS
• DATA PROCESSING
• CORRELATORS
• SIGNAL TO NOISE RATIO
• NOISE
• CORRELATION TECHNIQUES

Subject Categories:

• Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE