王玉珏

(92232部队,北京 100161)

摘　要：为评估沿粗糙海面传播的短波地波通信性能，研究了不同海况下的地波传播衰减因子。将短波地波传播模型与天线仿真技术相结合，在地波场强的计算中充分考虑实际舰载鞭天线的增益、方向图和辐射效率等参数；并介绍了大气噪声，对粗糙海面短波通信接收点处的信噪比进行计算；最后，给出了临海四地短波通信测试结果。无线信道试验表明，海面短波地波传播理论计算与外场试验结果基本一致。

关键词：地波传播；粗糙海面；鞭天线；信噪比

doi:10.3969/j.issn.1002-0802.2015.06.010

粗糙海面短波地波通信链路分析与计算

王玉珏

(92232部队,北京 100161)

摘要：为评估沿粗糙海面传播的短波地波通信性能，研究了不同海况下的地波传播衰减因子。将短波地波传播模型与天线仿真技术相结合，在地波场强的计算中充分考虑实际舰载鞭天线的增益、方向图和辐射效率等参数；并介绍了大气噪声，对粗糙海面短波通信接收点处的信噪比进行计算；最后，给出了临海四地短波通信测试结果。无线信道试验表明，海面短波地波传播理论计算与外场试验结果基本一致。

关键词：地波传播；粗糙海面；鞭天线；信噪比

doi:10.3969/j.issn.1002-0802.2015.06.010

收稿日期：2015-01-07；修回日期：2015-04-18Received date:2015-01-07；Revised date：2015-04-18

中图分类号：TN91

文献标志码：码：A

文章编号：号：1002-0802(2015)06-0677-05

Abstract：In order to evaluate the real ability of HF ground-wave communication system over rough sea-face, the ground wave attenuation factors under various sea conditions are studied. In combination of shipboard whip antenna modeling technology with HF ground-wave propagation model, the modeling results of directivity property, the radiation efficiency as well as the measured gains are introduced into HF ground-wave propagation computation formula. Atmosphere yawp intensity notion is given, and representative SNR value of the shortwave communication over rough sea-face also calculated. The calculation of SNR is of great significance in improving shortwave communication efficiency. Finally, HF communication result of the four different near-the-sea places is presented. Experiment on wireless channel indicates that the theoretical calculation of HF ground-wave propagation is basically consistent with the result of outfield test.

作者简介：

Analysis and Calculation of HF Ground-Wave of Communication

Link over Rough Sea-Surface

WANG Yu-jue

(Unit 92232 of PLA, Beijing 100161, China)

Key words：ground-wave propagation; rough sea-face; whip antenna; signal-to-noise ratio

0引言

短波通信具有抗毁性好、设备简单、抗干扰性好、造价低廉和使用方便等优点，被广泛用于军事、气象、商业等部门[1]。短波通信也是海上通信的重要手段，特别是中近距离、小业务量的通信很适合利用地波方式进行保障。……