Research Article

Denoising Method Based on Sparse Representation for WFT Signal

Table 1

of test signals with 5 dB SNR by different wavelet.

WaveletFrequency (Hz)
5055606570

db21.49311.56201.55491.51291.4843
db41.18971.24641.23921.18301.1897
db61.09581.14541.10581.06341.0950
db81.08401.10891.05481.01121.0716
db101.03751.09041.06330.99431.0374
sym21.49311.56201.55491.51291.4843
sym41.19381.25211.24551.18811.1904
sym61.09911.15341.13571.07851.1159
sym81.05581.07881.05531.03941.1072
sym101.02291.08961.06341.03641.1336
coif21.20841.26391.23531.18951.2048
coif31.14051.20961.18361.11421.1283
coif41.12431.15081.14981.10091.1614
coif51.13721.14991.08081.06351.1697