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为建立远程舰艇短波通信可靠通信链路,简化短波通信工程中天线和通信台站设计过程,研究设计了一个完整的短波通信链路计算模型。该模型包含天线辐射特性计算模型、短波通信电路计算模型、短波天线数据库和通信链路地理参数数据库四大部分。在此基础上,使用该模型进行了实例分析,确定了在一定条件下的工作频率、反射模式,预估场强强度,为短波天波通信工程设计提供依据。
In order to establish a reliable communication link for short-range shipwreck of a long-range ship and simplify the design process of the antenna and communication station in the shortwave communication project, a complete calculation model of the shortwave communication link is designed and studied. The model includes four parts: the calculation model of the antenna radiation characteristics, the calculation model of the short-wave communication circuit, the short-wave antenna database and the communication link geographical parameter database. On this basis, the model is used to analyze the case, and the working frequency, reflection mode and estimated field strength under certain conditions are determined, which provides the basis for the design of shortwave sky wave communication engineering.