An Improved One-Way Delay Measurement Error Elimination Algorithm
GU Cheng-ji · Radar Science and Technology · 2013
Owing to the measurement error of one-way delay for the relative clock frequency difference between sending end and receiving end in coordinated detection system,a one-way delay measurement error elimination algorithm based on least square fitting and convex hull(LSFCH)is proposed in this paper.The algorithm can firstly denoise the original one-way delay measurement data,and then fulfill linear fitting by use of least squares fitting method.All non-negative delays are ensured by using convex hull to get the accurate one-way delay.Experimental results show that the LSFCH algorithm can effectively eliminate the impact of clock frequency on one-way delay measurement and has good accuracy and robustness.