基于高动态运动模型的多普勒频移仿真  

Doppler Frequency Shift Simulation Based on High Dynamic Motion Model

作　　者：仲伟志[1] 郭庆[1] 

机构地区：[1]哈尔滨工业大学通信技术研究所,哈尔滨150001

出　　处：《计算机工程》2010年第20期22-24,共3页Computer Engineering

基　　金：国家自然科学基金资助重点项目"空天地一体化信息网络的基础理论及关键技术研究"(60532030)

摘　　要：为更好地实现高动态链路中的载波捕获跟踪,以高动态载体在临近空间中的各种简单运动模型为依据,对载体相对于临近空间接收平台的多普勒频移变化趋势进行描述和仿真,在此基础上分析多普勒频移对载波同步产生的影响。理论分析和仿真结果表明,基于高动态载体运动模型的多普勒频移变化曲线能够正确描述高动态运动方式下的多普勒频移变化趋势。In order to realize carrier acquisition and tracking of high dynamic link better,Doppler frequency shift between high dynamic aircraft and near space receive plat is described and simulated in terms of the motion models of high dynamic aircrafts in near space,and based on the result,the influence on carrier synchronization caused by Doppler frequency shift is discussed.Analysis and simulation results show that Doppler frequency shift achieved in terms of high dynamic motion models can accurately describe Doppler shift trends under high dynamic movement.

关 键 词：临近空间 高动态运动模型 多普勒频移 载波捕获跟踪 

分 类 号：TN911.7[电子电信—通信与信息系统]