Compression methods for mechanical vibration signals: Application to the plane engines
The proposed compression approach exploits features of mechanical vibration signals. The LOT compression exploits the energy concentration on some frequency components. The method is well suited for non-stationary signals. Results show that high compression rate can be achieved (size can be divided by 50). Fault detection performances are not modified by the signal compression.
compression vibration signals fault detection uniform adaptive quantization subband coding dct