【摘要】 在船舰行驶过程中，信号的传输在岛屿反射与海面散射影响下易产生多径效应，使船舰的无线地空数据接收系统受到影响。为提高接收机的接收性能，首先完成了多径信道的建模，搭建了三径信道模型，并在此模型下，将动态门限法与最小均方(LMS)算法进行改进结合，并用此算法完成了信号处理的研究与仿真。仿真结果表明，所提算法优化方案可以提高在此种情况下信号接收系统的准确性。更多还原

【Abstract】 During the process of ship driving, the transmission of signals is easy to generate multipath effect under the influence of island reflection and sea surface scattering, which affects the ship’s wireless ground-air data receiving system.In order to improve the reception performance of receivers, this paper first completes the modeling of multipath channels, builds a three-path channel model, and combines the dynamic threshold method with the least mean square(LMS) algorithm under this model, and uses this algorithm to complete the research and simulation of signal processing.The simulation results show that the optimization scheme of the algorithm proposed in this paper can improve the accuracy of signal receiving system under such circumstance.更多还原