正交多项式法在航空电磁运动噪声去除中的应用

黄威, 贲放, 吴珊, 孙思源, 廖桂香, 西永在

The application of orthogonal polynomial fitting method to airborne electromagnetic motion noise removal

Wei HUANG, Fang BEN, Shan WU, Si-Yuan SUN, Gui-Xiang LIAO, Yong-Zai XI

表2 多项式不同阶数和湮没点去噪效果

Table 2 Denoising effect of different order and annihilation point when polynomial fitting

order=2 k 500 1000 1200 1500 RMS 4.28 4.37 4.61 0.10 SNR 22.83 22.45 21.37 4.46 order=3 k 500 1000 1200 1500 RMS 4.28 6.58 0.15 1.33 SNR 22.89 14.28 -2.85 -45.92