EXTRACTING ANALOGUE SIGNALS FROM NOISE USING A DIGITAL COMPUTER.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1966
- Accession Number
- AD0488504
Entities
People
- Neil A. Barrett
Organizations
- Naval Postgraduate School