TY - GEN
T1 - Novel constrained algorithm for delay estimation in the presence of mulitpath transmissions
AU - So, H. C.
AU - Ching, P. C.
AU - Ho, K. C.
AU - Chan, Y. T.
PY - 1993
Y1 - 1993
N2 - A delayed version of a bandlimited signal can be represented by convolving a sinc function and the signal itself. By using this property, a novel constrained LMS algorithm that estimates the difference in arrival times of signal at two spatially separated receivers with multipath propagations is developed. The new model consists of two adaptive FIR filters to compensate the multipath effect in each channel and a third adaptive FIR filter to act as a delay estimator. With constraints, all filter coefficients are expressed in terms of the derived time delay as well as the multipath parameters. The error surface is multimodal and proper initialization is required to give good estimation of the system variables. Derivation of the proposed algorithm is given and simulations are included to demonstrate the effectiveness and validity of the algorithm.
AB - A delayed version of a bandlimited signal can be represented by convolving a sinc function and the signal itself. By using this property, a novel constrained LMS algorithm that estimates the difference in arrival times of signal at two spatially separated receivers with multipath propagations is developed. The new model consists of two adaptive FIR filters to compensate the multipath effect in each channel and a third adaptive FIR filter to act as a delay estimator. With constraints, all filter coefficients are expressed in terms of the derived time delay as well as the multipath parameters. The error surface is multimodal and proper initialization is required to give good estimation of the system variables. Derivation of the proposed algorithm is given and simulations are included to demonstrate the effectiveness and validity of the algorithm.
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M3 - 32_Refereed conference paper (with ISBN/ISSN)
SN - 780309464
VL - 1
SP - I-313-I-315
BT - Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
PB - Publ by IEEE
T2 - 1993 IEEE International Conference on Acoustics, Speech and Signal Processing
Y2 - 27 April 1993 through 30 April 1993
ER -