CAJ | 학술논문

为了分析微蜂窝结构中无线电接收信号的特性，研究了无线电波在微蜂窝结构中的传播路径。基于射线追踪法和镜像反射原理提出一种电波传播预测模型，该模型将城市微蜂窝结构的电波传播路径由几何射线转化为树结构，利用运筹学中图论的相关原理遍历搜索全部路径，再用镜像反射原理进行筛选得到最后的传播预测路径。以某市区部分区域为例，进行无线电波在该微蜂窝结构中的传播预测计算，得到收发机之间的电波传播路径，验证了该模型的可行性和准确性。
위료분석미봉와결구중무선전접수신호적특성，연구료무선전파재미봉와결구중적전파로경。기우사선추종법화경상반사원리제출일충전파전파예측모형，해모형장성시미봉와결구적전파전파로경유궤하사선전화위수결구，이용운주학중도론적상관원리편력수색전부로경，재용경상반사원리진행사선득도최후적전파예측로경。이모시구부분구역위례，진행무선전파재해미봉와결구중적전파예측계산，득도수발궤지간적전파전파로경，험증료해모형적가행성화준학성。
To analyze the characteristics of the receiving radio signal,the wave propagation in microcell structure must be analyzed first.A wave propagation prediction model was presented.The model changed the propagation paths in microcell structure from geometrical ray into tree structure and used relevant principle of graph theory in operational research searching all the propagation paths.Then,imaged reflec-tion principle was used to screen out the final propagation prediction paths.The model calculated the radio propagation paths in microcellular structure which took one region of a city as example,and got the calcu-lation of concrete wave propagation path of the transceiver.The feasibility and accuracy of the model were validated to a certain extent.