海洋的浩瀚和多变使其信号的获取艰苦困难,如何合理地分析海洋信号,从中尽可能多地提取有用的信息是海洋研究的关键问题之一。由于海洋遥感观测得到的数据大都具有大量的噪声,因此,采用更好的降噪方法去获取我们所需的信息显得尤其重要,本文主要针对两个海洋观测数据降噪处理的实例进行了分析和研究。 第一个实例针对一个复杂地形区的28小时走航ADCP重复测量所收集到的水深数据和DGPS的地理位置序列,提出了一种潮位信息提取算法,通过提取的潮位信息从而得到较为真实的水下地形图。算法主要分为以下几个步骤:根据测深距离选取重复测深点集,计算重复测深点集的水深差,拟合叠加法计算潮位,迭代逼近法计算潮位,和样条逼近及零...The vastness and changefulness of ocean render the acquisition of oceanic signal shard and difficult. It is thus of crucial importance for marine research to reasonably analyze oceanic signals acquired, so as to extract useful information as much as possible from them. As the data by ocean observation is easily polluted by lots of noise, the better methods by reduce the noise to obtain the informa...学位:理学硕士院系专业:海洋与环境学院环境科学与工程系_环境科学学号:2262006115235