| 摘要: |
| 针对应急微波通信链路不能快速构建的问题，采用了一种多属性综合评价决策链路的方法。该方法结合已有的地理海拔和坐标数据，先对微波通信设备之间的视距传播情况进行判断，再在一定范围内进行中继站寻址，通过衰减预测、距离计算和角度估计后使用优劣解距离法对所有备选中继站综合排序从而得到最优中继站，最后完成所有设备间的链路构建。对此方法进行了功率适用性评估，结果表明该方法可在随机地区构建链路并且通信设备的接收功率均大于接收机灵敏度-120 dBm，证明了方法的有效性和适用性。 |
| 关键词: 数字微波 应急通信 中继站选取 视距判断 衰减预测 优劣解距离法 |
| DOI： |
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| 基金项目:通信网信息传输与分发技术重点实验室基金资助项目 |
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| Construction of emergency microwave communication link using geographic information |
| WANG Chenyi,DAI Fusheng,ZOU Bin |
| () |
| Abstract: |
| Emergency microwave communication link is always unable to quickly build. To solve the problem,a multi-attribute comprehensive evaluation method is used.According to existing geographic elevation and coordinate data,the method first judges the condition of line-of-sight(LOS) distance transmission between two microwave communication equipment and then searches the relay stations in a certain range. After attenuation prediction,distance calculation and angle estimation,Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS) is used to sort all the alternative relay stations in order to get the optimal relay station.Finally,the links between all equipment is built and the power applicability is evaluated. Simulation and evaluation results show that the proposed method can be used to construct communication link in random areas and the received power of the communication equipment is greater than the receiver sensitivity -120 dBm,which proves that the method of link construction is effective and adaptable. |
| Key words: digital microwave emergency communication relay station select line-of-sight judgment attenuation prediction TOPSIS |
《电讯技术》编辑部 