Table 3 Comparison of recognition accuracy of different detection algorithms
Detection algorithms | Noise/dB | ||||
|---|---|---|---|---|---|
0 | 50 | 40 | 30 | 20 | |
DT | 99.78% | 99.59% | 99.59% | 99.11% | 97.81% |
SVM | 98.22% | 97.67% | 97.33% | 96.78% | 92.52% |
KNN | 98.93% | 98.56% | 98.48% | 98.0% | 96.78% |
Detection algorithms | Noise/dB | ||||
|---|---|---|---|---|---|
0 | 50 | 40 | 30 | 20 | |
DT | 99.78% | 99.59% | 99.59% | 99.11% | 97.81% |
SVM | 98.22% | 97.67% | 97.33% | 96.78% | 92.52% |
KNN | 98.93% | 98.56% | 98.48% | 98.0% | 96.78% |