MEASUREMENT OF SHORT NOISY SIGNAL PARAMETERS WITH THE USE OF SIGN DM
Wlodzimierz Pogribny, Igor Rozhankiwsky, Tadeusz Leszczynski
Abstract:
Usually correlation analysis (CA) is realized in Pulse Code Modulation (PCM) format that needs numerous mathematical operations with the large word length that limits the fast-acting of processing as well as the use of its to the measurement of wide-band noisy signals in real time. In this paper the use of signal representation in Sign Delta Modulation (SignDM) format has been proposed in order to increase the efficiency of the real time CA of short hardly noised signals. The SignDM codes are specified by comparing the values of differences between signal samples in PCM format with a differential zone which is defined a priori. These two bit codes reflect the signal character and are suitable for CA as well. In this paper there are presented the fast and exact algorithms of the SignDM CA, as well as the computer simulation results for resolution of CA of short noisy signals at the various differential zone and initial phases.
Keywords:
correlation analysis, short time series, delta modulation
Download:
PWC-2006-TC4-069u.pdf
DOI:
-
Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006
 Back