A TOA Estimation based on Adaptive Noise Cancellation For UWB Sensor Networks

摘要

This paper discussion the designing of UWB (ultra wideband) wireless sensor network (WSN) location measure, traditional GPS position estimation is not suitable due to cost, so a improved TOA (time of arrival) estimation which based on Adaptive Noise Cancellation method is proposed in order to design a low-calculation and high precision estimation algorithm. Adaptive Noise Cancellation (ANC) system was used to counteract input noise and Maximum Energy Selection estimate the maximum energy block. The simulation results show that the proposed method reached higher precision than traditional energy detection based non-coherent method, while largely decreases the computational complexity compared to the match-filtering based coherent method.