| 摘要: |
| 本文介绍了海面低仰角数字微波通信系统的特点，对海面电波多径衰落进行了理论计算，指出了通信系统抗衰落的方法和手段，并给出了一种抗衰落通信系统在海面通信试验中的测试数据。 |
| 关键词: 海面低仰角 数字微波通信 电波传输 多径衰落 低仰角 菲涅尔半径 扩频 误码率 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:March 27, 2002 |
| 基金项目: |
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| Performance and System Analysis of an Over Sea Low Elevation Digital Microwave Communication System |
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| Abstract: |
| In this paper, features of an over sea low elevation digital microwave communication system is presented, multiple-path fade of electro-magnetic wave on sea surface is theoretically calculated and anti-fade methods of communication system are pointed out.Finally, tested data of the experiment for an anti-multi-path-fade communication system communication on sea surface is given as well. |
| Key words: Digital microwave communication,Electro-magnetic wave transmission,Multi-path fade,Low elevation,Radius of Fresnel zone,Spectrum-spread,Code error ratio, |
