TY  - JOUR
T1  - Compression of Vibration Data by the Walsh-Hadamard Transform
AU - Joseph Oyobe Okassa, Aime AU - Pierre Ngantcha, Jean AU - -Germain Allogho, Guy AU - ELE, Pierre 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 10
SP  - 2256
EP  - 2260
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.2256.2260
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.2256.2260
KW  - WHT
KW  -compression
KW  -vibratory signals
KW  -storage
KW  -bandwidth
KW  -rotating
AB  - Vibration signals are vectors for several pieces
of information relating to the operating status of rotating
machines. The storage and transmission of these signals
poses problems of space and bandwidth. One solution to
this problem is to compress these signals. In this research,
we compress and decompress the vibration signals formed
by the variations of vibration amplitudesof a ball bearing.
We used an algorithm based on the Walsh-Hadamard
Transform (WHT). The coefficients obtained are coded
according to Huffman coding. An evaluation of the
performance of this algorithm is made on the basis of
SNR, MFD, MSE, PRD and CR measurements. Taking
this assessment into account, the results of the method are
qualitatively and quantitatively very encouraging.
ER  -