基于第三代移动通信CDMA基站信号的非合作定位技术  

A Non-Cooperative Location Technology Based on DMA Base Station Signal of Third Generation Mobile Communication

作　　者：李鹏程 顾杰 王淑君 冉一航 Li Pengcheng;GU Jie;WANG Shujun;RAN Yihang(Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China)

机构地区：[1]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2022年第1期61-65,共5页Electronic Information Warfare Technology

摘　　要：针对拒止环境下的导航定位难题,提出一种利用多个CDMA基站发射的下行链路信号作为辐射源构成的非合作定位技术及实现方案。详细阐述基于到达时间的定位原理及解算方法,完成导频信道信号捕获跟踪、同步信道与寻呼信道解调等信号处理关键步骤,通过试验结果证明利用CDMA下行信号进行定位的可行性,最终实现不依赖于卫星导航信号的非合作定位。Aiming at the difficulty of navigation and position in GNSS denial environment,a new non-cooperative location technology and implementation method by using downlink communica-tion signal of the multiple CDMA base station as the external illuminator is presented.The posi-tion principle and solution method based on TOA are described in details.The key process of sig-nal processing,such as pilot channel signal acquisition and tracking,synchronous channel and paging channel demodulation is completed.The feasibility of position is proved using CDMA downlink signal with the experimental results.Finally,the non-cooperative location is realized,which is independent of the satellite navigation signal.

关 键 词：CDMA 到达时间 导频信道 捕获跟踪 非合作定位 

分 类 号：TN971.3[电子电信—信号与信息处理]