基于多用户检测的多目标测距系统  

Multi-target ranging system based on multi-user detection

作　　者：苏萌[1] 张宇翔[1] 

机构地区：[1]重庆大学通信与测控中心,重庆400044

出　　处：《传感器与微系统》2012年第6期111-113,共3页Transducer and Microsystem Technologies

摘　　要：设计了一种能够在一次测量中完成同一方向上多个目标测距的系统。该系统利用数字匹配滤波器的捕获功能,实现多个回波的捕获,多用户检测器对捕获进行处理;利用比相器得到测距的到达时间差,从而完成了同一方向上的多个目标测距。与传统测距相比,多目标测距可以在一次测距过程中,对测距范围和测距方向上出现的多个目标同时进行测量,从而大大提高了测距系统的实用性和灵活性。A multi-target ranging system is designed,which uses capture function of digital matching filter to implement multiple echo capture,and multi-user detector processes the captured and uses phase detector to get the time difference of arrival,so the measurement of multi-target in the same direction can be completed.Compared with traditional ranging,multi-target ranging can support mulitiple targets simultaneously in only one ranging process in ranging direction and area,the practicability and flexibility of ranging system is also improved.

关 键 词：扩频测距 多目标 多址干扰 并行干扰抵消 

分 类 号：TU198.7[建筑科学—建筑理论]