Estimation of timing delay and frequency offset using a dual-chirp sequence

A novel estimation technique of timing delay and frequency offset that takes advantage of a dual-chirp signal is proposed and investigated in this paper. The proposed technique can be implemented with low hardware or computational complexity by using fully-digital circuitry or a digital signal processor (DSP). In addition, it can achieve sufficiently low errors both on timing delay and frequency offset estimation by effectively analyzing only a single burst. Furthermore, the proposed technique enjoys higher resistance against various kinds of interference than conventional techniques. Its superiority is verified by means of simulations in conjunction with statistical analysis.