Energy Detection Receiver with TOA Estimation Enabling Positioning in Passive UWB-RFID System
This paper presents a passive UWB-RFID system with Time-Difference-of-Arrival (TDOA) positioning from system to circuit perspectives. Wireless powered RFID tags with UWB transmitter transmit wideband pulses to readers, allowing high accurate Time-of-Arrival (TOA) estimation. Low power low complexity TOA estimations using energy detection receiver are investigated. Max Energy Select (MES), Threshold Comparison (TC), and MES-Search-Back (MES-SB) algorithms are evaluated and analyzed. As a special focus, a prototype of the proposed energy detection receiver is designed and implemented. It consists of a 3.1-4.8GHz IR-UWB analog frontend with high speed digital circuits in 90nm CMOS, and a flexible back-end with a TOA estimator on FPGA.
Zhuo Zou Ti Deng Qin Zou David Sarmiento M Fredrik Jonsson Li-Rong Zheng
iPack Vinn Excellence Center, ICT School KTH-Royal Institute of Technology, Sweden
国际会议
南京
英文
1-4
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）