Table 5 Estimated parameters of signal
From: Estimation of LFM signal parameters using RD compressed sampling and the DFRFT dictionary
Methods | (\(\widehat{p}_{{{\text{opt}}}}\), \(\widehat{u}_{{{\text{opt}}}}\)) | (\(\widehat{k}\),\(\widehat{{f_{c} }}\)) | Error (\(\widehat{k}\)) | Error (\(\widehat{{f_{c} }}\)) | Operation time/s |
|---|---|---|---|---|---|
QPSO | (0.81, 595) | (307.8, 255.3) | 0.026 | 0.021 | 10.23 |
GA-PSO | (0.81, 595) | (307.8, 255.3) | 0.026 | 0.021 | 20.33 |
PSO | (0.79, 590) | (323.9, 264.7) | 0.080 | 0.059 | 50.76 |
2-DS | (0.81, 595) | (307.8, 255.3) | 0.026 | 0.021 | 264 |