摘要
提出了基于插值法的地形重建算法 ,并应用于平流层通信系统电波传播损耗的预测 ,给出了地形重建算法的计算机实现方法 ,并对随机产生的地形数据进行了模拟 ,得出了平流层通信传播损耗与地形数据特征之间的关系。通过地形库数据的行插值、列插值和对角线插值方法解决了平流层通信系统传播损耗预测的地形重建问题 ,保证了传播损耗预测算法的有效性。
A terrain reconstruction algorithm based on interpolati on is presented and used to predict the propagation loss of the stratospheric communication systems. The program of the algorithm based on interpola tion algorithm aided by computer is describ ed. By means of simulation with the randomly generated terrain data, the relatio n between the propagation loss and the topographic information is obtained. Usin g such approaches as row interpolation, column interpolation, diagonal interpola tion and so on, we solve the problem on the terrain reconstruction for predictin g the propagation loss of the stratospheric communication systems and ensure the validity of the algorithm for predicting the propagation loss of strat ospheric communication systems. The research has great significanc e on the performance simulation of the stratospheric communication systems where no measurement data are available.
出处
《数据采集与处理》
CSCD
2001年第3期280-285,共6页
Journal of Data Acquisition and Processing
基金
国家自然科学基金 (编号 :69972 0 2 8)资助项目
关键词
地形重建
电流传播
传播损耗预测
插值法
平流层通信
移动通信
terrain reconstruction
radio propagation
pro pagation loss prediction
interpolation
stratospheric communications
