基于扩频通信的弹载发射机设计  

Design of missile borne transmitter based on spread spectrum

作　　者：刘雨顺 管雪元[1] 赵一帆 Liu Yushun;Guan Xueyuan;Zhao Yifan(State Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210096,China)

机构地区：[1]南京理工大学瞬态物理国家重点实验室,南京210096

出　　处：《电子测量技术》2021年第9期66-70,共5页Electronic Measurement Technology

摘　　要：随着国防科技的不断发展,扩频技术的应用越来越广泛。针对身管武器在飞行时的通信需求,设计了一种基于扩频通信的发射机。给出了系统的硬件设计框架,系统由射频前端芯片AD9361、数字基带处理芯片FPGA和外围电路组成;其中外围电路包括电源模块、时钟模块、巴伦馈线接口、串口和调试接口等。通信系统软件层面采用BPSK调制技术和扩频技术,其中扩频调制部分采用了Gold平衡码和三级RAM缓存方案。最后,依托某弹道测量项目进行遥测试验,利用地面接收站接收发射机发送的数据,记录调制波形、计算接收数据的误码率,验证了所设计的弹载发射机平台的可靠性和扩频调制方法的正确性。With the continuous development of national defense technology,spread spectrum technology is more and more widely used.In order to meet the communication requirements of gun barrel in flight,a transmitter based on spread spectrum technology is designed.The system consists of RF front-end chip AD9361,digital baseband processing chip FPGA and peripheral circuits.The peripheral circuit includes power module,clock module,balun feeder interface,serial port and debug interface.The software of communication system adopts BPSK modulation technology and spread spectrum technology,and the spread spectrum modulation part adopts Gold balanced code and three-level RAM buffer scheme.Finally,based on a ballistic measurement project,the telemetry test is carried out,using the ground receiving station to receive the data sent by the transmitter,recording the modulation waveform and calculating the bit error rate of the received data,which verifies the reliability of the designed missile borne transmitter platform and the correctness of the spread spectrum modulation method.

关 键 词：扩频通信 发射机 GOLD码 BPSK调制 

分 类 号：TN914.42[电子电信—通信与信息系统]