Title :
Vibration signal compression by an ADPCM encoder
Author :
He, Zhenya ; Wu, Lenan ; Xu, Hua
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
A description is presented of an effective adaptive encoder, an adaptive differential pulse code modulation (ADPCM) encoder whose main part is a LMS adaptive predictor, and applications in vibration signal compression. Some simulation results are also presented and analyzed. The ADPCM encoder described has the advantage of adapting statistical variation of the input signal and can maintain a relatively high compression ratio in such situations. It is an effective method in vibration signal compression
Keywords :
data compression; encoding; filtering and prediction theory; least squares approximations; pulse-code modulation; ADPCM encoder; LMS adaptive predictor; adaptive differential pulse code modulation; high compression ratio; input signal; statistical variation; vibration signal compression; Adaptive filters; Bit rate; Delay; Digital signal processing; Dynamic range; Equations; Least squares approximation; Mean square error methods; Signal processing algorithms; Vectors;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160749
