一型高仰角天线近距离通信效果分析  

Analysis of the effect of a high elevation antenna in the near distance communication

作　　者：邓铁辉 沈建[2] 

机构地区：[1]海司信息化部,北京100841 [2]海军工程大学电子工程学院,湖北省武汉市430033

出　　处：《电子技术（上海）》2016年第4期13-15,共3页Electronic Technology

摘　　要：文章通过使用ITU-R P.533建议中的"高频传播预测方法"计算了一型高仰角天线近距离的场强和信噪比覆盖情况,并对与短波鞭天线近距离通信的覆盖情况进行了对比。计算结果及分析表明,短波近距离通信时,鞭天线的通信效能总体上要优于高仰角天线,但是鞭天线存在近区通信盲区;高仰角天线的场强覆盖和信噪比覆盖要比鞭天线差,但是不存在近区通信盲区。通过对鞭天线和高仰角天线的建模分析得出的两型天线的效率和增益图表显示,鞭天线在低频段的增益和效率都优于高仰角天线,在盲区以外,鞭天线的场强覆盖和信噪比覆盖要优于高仰角天线。In this paper, the high frequency propagation prediction method based on P.533 ITU-R is used to calculate the field strength and signal to noise ratio coverage of a high elevation antenna, and the coverage of the short distance communication with the short wave whip antenna is compared. The calculation and analysis results show that the communication efficiency of the whip antenna is better than that of the high elevation antenna, but the whip antenna has the communication blind zone in the near area when communicating in short distance. The field strength and signal to noise ratio coverage of high elevation antenna is more inferior than that of whip antenna,but it has no blind zone.Modeling the whip antenna and the high elevation antenna, and then gain their efficiency and gain patterns. Them show that the gain and the efficiency of the whip antenna are superior to the high elevation antenna. The field strength and signal to noise ratio coverage of whip antenna is more inferior than that of high elevation antenna beyond blind zone.

关 键 词：短波 盲区通信 鞭天线 高仰角天线 

分 类 号：TN929.5[电子电信—通信与信息系统]