Table 1 Comparison with the computation of FFT
N | \(Q_{{{\text{FFTrm}}}}\) | \(Q_{{{\text{FFTca}}}}\) | \(N_{1}\) | \(N_{2}\) | \(H\) | \(Q_{{{\text{rm}}}}\) | Reduction rate (%) | \(Q_{{{\text{ca}}}}\) | Reduction rate (%) |
|---|---|---|---|---|---|---|---|---|---|
128 | 1792 | 2688 | 16 | 26 | 5 | 776 | 56.70 | 588 | 78.13 |
10 | 1296 | 27.68 | 1108 | 58.78 | |||||
15 | 1816 | 1.34 | 1628 | 39.43 | |||||
256 | 4096 | 6144 | 32 | 40 | 5 | 1824 | 55.47 | 1216 | 80.21 |
10 | 2624 | 35.94 | 2016 | 67.19 | |||||
15 | 3424 | 16.41 | 2816 | 54.17 | |||||
512 | 9216 | 13,824 | 32 | 102 | 5 | 3064 | 66.75 | 2332 | 83.13 |
10 | 5104 | 44.62 | 4372 | 68.37 | |||||
15 | 7144 | 22.48 | 6412 | 53.62 | |||||
1024 | 20,480 | 30,720 | 64 | 146 | 5 | 7016 | 65.74 | 4644 | 84.88 |
10 | 9936 | 51.48 | 7564 | 75.38 | |||||
15 | 12,856 | 37.23 | 10,484 | 65.87 |