Table 29 Performance analysis of the random Uniform sensing matrix
Length of signal (N) | Number of measurements (m) | Compression ratio (CR = m/N) | Sparsity level = (k/N) × 100 (%) | No. of non-zeros (k) | No. of iterations required | Signal reconstruction time (s) | RMSE | Relative error | SNR (db) | Construction time for sensing matrix (s) |
|---|---|---|---|---|---|---|---|---|---|---|
2048 | 205 | 0.1 | 50 | 1024 | 28 | 2.235539 | 0.0634 | 1.0600 | 1.0296 | 0.223625 |
2048 | 410 | 0.2 | 50 | 1024 | 25 | 3.600845 | 0.0537 | 0.8966 | 0.8152 | 0.738591 |
2048 | 512 | 0.25 | 50 | 1024 | 25 | 5.745004 | 0.0516 | 0.8616 | 0.8698 | 1.917257 |
2048 | 614 | 0.3 | 50 | 1024 | 25 | 6.434319 | 0.0496 | 0.8281 | 1.6951 | 2.113897 |
2048 | 849 | 0.4 | 50 | 1024 | 23 | 9.443467 | 0.0474 | 0.7924 | 1.9810 | 5.332054 |
2048 | 1024 | 0.5 | 50 | 1024 | 23 | 15.986578 | 0.0470 | 0.7857 | 2.0911 | 11.975395 |
2048 | 1229 | 0.6 | 50 | 1024 | 24 | 19.727464 | 0.0468 | 0.7823 | 2.1297 | 14.165440 |
2048 | 1434 | 0.7 | 50 | 1024 | 24 | 25.920229 | 0.0468 | 0.7816 | 2.1401 | 34.968949 |
2048 | 1536 | 0.75 | 50 | 1024 | 23 | 72.481383 | 0.0468 | 0.7816 | 2.1407 | 48.408631 |
2048 | 1638 | 0.8 | 50 | 1024 | 20 | 29.193737 | 0.0468 | 0.7816 | 2.1407 | 93.407060 |
2048 | 1843 | 0.9 | 50 | 1024 | 17 | 32.821700 | 0.0468 | 0.7816 | 2.1408 | 51.437677 |
2048 | 2048 | 1.0 | 50 | 1024 | 9 | 22.395440 | 0.0468 | 0.7815 | 2.1409 | 57.803101 |