摘要
在分析了以往的脉冲超宽带(IR-UWB)室内定位系统接收检测技术的基础上,提出利用数字锁相环接收机来准确估计UWB脉冲信号到达时间(TOA),完成室内环境精确测距和定位功能。通过仿真和测试论证了方案的可行性,最后在6m×6m室内空间中实现了系统对标签的定位功能,输出抖动在2ns以内,获得了良好的效果。
Based on the analysis of the previous receiver detection techniques of IR-UWB positioning system, this paper proposes digital phase-locked loop receiver to make an accurate estimate of UWB pulse signal＇s time of arrival （TOA）, and to complete the indoor environment precision ranging and positioning capabilities. Through system simulation and implementation, verify the feasibility of the program and finally implement the functions of label positioning system with the maximum jitter of 2 ns in 6 m×6 m indoor environment, the obtained result is favorable.
出处
《电子技术应用》
北大核心
2010年第4期74-76,80,共4页
Application of Electronic Technique
基金
国家自然科学基金(60472091)
广西科学基金(0640168)
