侧扫声纳系统姿态参数平滑方法研究  

Smoothing Method of The Parameters in Sidescan Sonar Data

作　　者：熊传梁[1] 王特 高君[1] 肖付民[1] 刘雁春[1] 

机构地区：[1]海军大连舰艇学院海洋测绘科学与工程系 [2]72681部队

出　　处：《海洋测绘》2012年第3期5-7,共3页Hydrographic Surveying and Charting

摘　　要：针对侧扫声纳系统姿态参数采样率低于声纳Ping值采样率的问题,采用窗口移动多项式最小二乘平滑方法(Savitzky-Golay平滑法),对阶梯状姿态数据进行平滑。结果证明了该法的可行性。在选取窗口宽度和多项式阶数时,通过实测数据比较表明,采用窗口为11的二阶多项式平滑后结果与原数据符合程度高。Aimming at the low sample rate of attitude data toward that of Ping data, the paper utilized the smoothing method of Savitzky-Golay to smooth the attitude data. The result validates the method. When choosing the length of the window and degree of polynomialare analyzed, the comparability to the original data shows that the model with 2nd polynomial and 11 as its window length can make a good smooth, correlating to the original data closely.

关 键 词：侧扫声纳 姿态 Savitzky-Golay 平滑 

分 类 号：P229.1[天文地球—大地测量学与测量工程]