题目/Title：Low-complexity Algorithm and Circuit Design of Correlation for Time Delay Estimation

作者/Author：汤其勇,张春,李永明,贾雯
                        Qiyong Tang,Chun Zhang,Yongming Li,Wen Jia

会议/Conference：ICEIEC 2016

地点/Location：Beijing, China

年份/Issue Date：2016.17-19 June

页码/pages：pp. 1 - 5

摘要/Abstract：
Time delay estimation (TDE) is of great importance in a TDOA based location finding system and cross correlation is a typical method of TDE. This paper presents a new index named Equivalent One-bit Adding Times (EOAT) to evaluate algorithm’s computation on bit level, based on which a low-complexity method of correlation is presented, meanwhile, we deduce the sufficient condition under which new method could be used, where condition coefficient F is put forward whose value is decided by input signal’s nature, sampling rate and ADC’s bits.