Stepped Frequency Multiresolution Digital Signal Processing

Table 2

SNR calculation results of different algorithms in scenario 2.

Digital signal processing algorithm	Signal-to-noise ratio
Raw data 1	−11.547
Mean method	4.111
Principal component algorithm	5.192
Linear prediction algorithm	8.361
An improved algorithm is proposed in this paper	20.324
Raw data 2	−15.339
Mean method	8.774
Principal component algorithm	15.934
Linear prediction algorithm	20.331
An improved algorithm is proposed in this paper	25.143
Raw data 3	−20.302
Mean method	11.213
Principal component algorithm	18.201
Linear prediction algorithm	21.354
An improved algorithm is proposed in this paper	30.119