摘要
文中通过对三种传播预测模型的产生背景及适用条件的对比分析,结合Matlab仿真结果与实测数据的比较,选择Longley-Rice模型为海上超短波通信传输损耗模型,根据传输损耗模型计算接收点场强,并计算出接收点所需最小接收场强,依据时间概率模型判定舰船超短波通信侦察系统的有效侦察距离,根据有效侦察距离对舰船超短波通信侦察系统侦察效能进行评估。
This paper analyzes backgrounds and applicable conditions for three models, and combines Matlab simulation with test data, chooses Longley-Rice model as the transmission-loss model for marine VHF/UHF communication. According to the transmission-loss model, the field intensity and the smallest receive field intensity of the receiving point is computed. Based on the timeprobabilisticmodel, the effective reconnaissance distance of shipboard VHF/UHF communication reconnaissance system is calculated. And the effectiveness of shipboard VHF/UHF communication reconnaissance system is also evaluated in the light of effective reconnaissance distance.
出处
《通信技术》
2009年第9期117-120,共4页
Communications Technology
