一种高阶多普勒无线通信信号模拟算法  

A High Order Doppler Wireless Communication Signal Simulation Algorithm

作　　者：宋青平 赵开兰 高洪兴 高军军 余跃 SONG Qingping;ZHAO Kailan;GAO Hongxing;GAO Junjun;YU Yue(Science and Technology on Information Systems Engineering Laboratory,Beijing Institute of Control and Electronic Technology,Beijing 100038)

机构地区：[1]北京控制与电子技术研究所信息系统工程重点实验室,北京100038

出　　处：《舰船电子工程》2022年第7期97-100,共4页Ship Electronic Engineering

摘　　要：为了测试无线通信高动态接收机的信号检测能力,需要模拟出接收机接收到的含有多普勒频偏和变化率的载波信号,论文首先根据收发信机之间的相对速度、加速度、加加速度计算出收发频率之间的多普勒频偏、多普勒一、二阶变化率。在此基础上通过直接数字频率合成器的频率控制字完成高动态高阶多普勒信号的模拟。仿真结果表明,该算法能够有效及精确地模拟出高阶多普勒信号,为信号的接收检测提供了条件,因此有较高的应用价值。In order to test the signal detection ability of wireless communication high dynamic receiver,it is necessary to simu⁃late the carrier signal with Doppler shift and rate received by the receiver.Firstly,according to the relative velocity,acceleration and acceleration between the transceiver,the Doppler frequency offset,the first and second-order Doppler change rate between the receiving and transmitting frequencies are calculated.On this basis,the simulation of high dynamic and high-order Doppler signal is completed through the frequency control word of direct digital frequency synthesizer.The simulation results show that the algo⁃rithm can effectively and accurately simulate the high-order Doppler signal,which provides conditions for the signal receiving and detection,so it has high application value.

关 键 词：信号模拟 多普勒频偏 多普勒变化率 频率合成 频率控制字 

分 类 号：TN914.3[电子电信—通信与信息系统]