基于相关算法的海缆埋深检测性能分析

基于信号和噪声统计不相关特性,提出了相关算法在海缆埋深检测中的新应用,并结合IIR（无限脉冲冲击响应）滤波算法进行了分析比较。当幅值为1 V的25 Hz探测信号分别受到幅值为100 V的20.15 Hz,24.45 Hz强噪声干扰时,相关算法滤波后得到的归一化幅值分别为1.185和5.870,而IIR滤波算法得到的归一化幅值为1.42和9.32。仿真结果表明,海缆探测中相关算法优于IIR滤波算法。

Performance Analysis of Submarine Cable Burying Depth Detection Based on Correlation Algorithm

Based on the independence of signal and noise statistics,a new application of correlation algorithm in submarine cable burying depth detection is proposed,in addition a comparison is made combining with IIR filtering algorithm.When a detecting signal with 1 V amplitude and 25 Hz is interfered by the strong noise signals with 100 V amplitude,and 20.15 Hz and 24.45 Hz,respectively,the normalized magnitudes obtained using correlation algorithm are 1.185 and 5.870,respectively,and the corresponding results obtained using IIR filtering algorithm are 1.42 and 9.32,respectively.The simulation results show that in submarine detection correlation algorithm is better than IIR filtering algorithm.