Accession Number : ADP008951

Title :   The Dual Spectrum Approach: Better Validation for PDA Signal Processing,

Corporate Author : QUEEN'S UNIV KINGSTON (ONTARIO) DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Sellens, R. W.

Report Date : 23 JUL 1992

Pagination or Media Count : 5

Abstract : An alternative method for determining the frequency and phase shift for a pair of Doppler bursts is described. The dual spectrum approach has the advantage that each burst is evaluated on an entirely separate basis, allowing the measurement system to reject events composed of bursts that are inconsistent with each other in either frequency or signal to noise ratio. Possibilities for greater modularity of signal processing equipment using this approach are identified. (Author)

Descriptors :   *LASER ANEMOMETERS, *OPTICAL PROCESSING, LIGHT PULSES, DOPPLER EFFECT, SIGNAL TO NOISE RATIO, SPECTRUM ANALYSIS, PHASE SHIFT, FAST FOURIER TRANSFORMS, CANADA.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE