Construction of synthetic test signals for evaluation lossy compression methods for measurement signals
W. Gawędzki · 2004
The problems of measurement signal compression recorded under long-term monitoring conditions are presented in the paper. The functional quality of lossy compression algorithms in metrological applications depends strongly on the data stream dynamic properties. This was the reason for presenting a proposal to use synthetic test signals for investigating and classification compression algorithms. Application of such signals to study the lossy compression algorithms makes the results obtained this way independent of the shape of an individual signal and makes them obligatory for the whole class of measurement signals. By changing parameters of synthetic signals, the functioning of algorithms can be investigated within certain intervals of parameter values, and not, as it is for real signals, for single values of these parameters. A method for generating synthetic test signals for testing metrological properties of lossy compression methods allowing unification of the obtained results is presented in the paper. The results of exemplary simulation experiments are presented.