Erasure correction achieved by two errors-only decoding passes using the Euclidean algorithm. Any (valid) code length can be input. -Erasure correction achieved by two errors - only decoding passes using the Euclidean algo rithm. Any (valid) code

Calculation of the Euclidean distance between the two matrices, Wavelet packet analysis to extract vibration signal characteristic frequency, Includes the modulation, demodulation, signal to noise ratio calculation.