基于互TK能量算子的到达时间差估计

Time Difference of Arrival Estimation Based on Cross Teager-Kaiser Energy Operator

借鉴TK算子的优点,提出一种基于互TK能量算子的信号到达时间差(TDOA)的估计方法。该方法通过相似度的峰值可以直接获得一个统计独立的TDOA估计。采用超宽带信号进行仿真实验,结果表明,该方法适用于无线定位中TDOA参数的估计,性能优于互相关估计算法。

By referring to the advantage of Teager-Kaiser Operator（TKO）,this paper proposes an estimation method for Time Difference of Arrival（TDOA） of two signals based on Cross Teager-Kaiser Energy Operator（CTKEO）.TDOA estimation is obtained directly and statistical independently by checking peak position of the similarity between two signals.Simulation experiments with UWB signal show that the method is simple,more achievable and globally outperforms cross-correlation algorithm.