CAJ | 학술논문

针对短波电台实际使用中自适应通信建链时间过长的缺点，通过构建短波天波传播模型，实时计算传播损耗，用基于传播损耗的信道优选方法进行快速自适应建链，并在西安、兰州和延安短波台站之间进行建链测试。实测结果表明，基于传播损耗的方法与线路质量分析( LQA)方法比较，前者能在平均话音质量基本保持不变的情况下，使平均建链时间减少约一半，实时性更好，有利于短波电台的改装和自适应通信方式的推广应用。
침대단파전태실제사용중자괄응통신건련시간과장적결점，통과구건단파천파전파모형，실시계산전파손모，용기우전파손모적신도우선방법진행쾌속자괄응건련，병재서안、란주화연안단파태참지간진행건련측시。실측결과표명，기우전파손모적방법여선로질량분석( LQA)방법비교，전자능재평균화음질량기본보지불변적정황하，사평균건련시간감소약일반，실시성경호，유리우단파전태적개장화자괄응통신방식적추엄응용。
Aiming at the shortcoming of long link establishment time for the adaptive communication of HF ( High Frequency) radio in practice, by building the HF sky wave propagation model and calculating the real-time propagation loss,a fast adaptive link establishment method is proposed by the way of channel optimiza-tion based on propagation loss and is tested among the stations in Xi’an, Lanzhou and Yan’an. The actual measurement results show that, compared with the way based on propagation loss with Link Quality Analysis ( LQA) , the proposed method can shorten the average link establishment time by about half and has a better real-time performance while the average voice quality can be kept unchanged, which is beneficial for the re-fit of HF radios and the popularization and application of adaptive communication method.