... system and methods ofestimating channel impulse responses therein,” US patent0043887 A1, March 2003.[3] E. G. Larsson, G. Liu, J. Li, and G. B. Giannakis, “Joint sym-bol timing and channel estimation ... Communications Letters, vol. 5, no. 8, pp. 325–327, 2001.[4] J H. Chen and Y. Lee, “Joint synchronization, channel length estimation, and channel estimation for the maximum likeli-hood sequence estimator ... Comparison results of the PDF obtained by Larsson’s and proposed methods, true CIR length NP= 9 and (a) SNR = 0, (b)SNR= 10, and (c) SNR = 40 dB.according to the channel condition. That is...