TY - GEN
T1 - Suppression of narrow-band interference and multipath by spread-spectrum receiver using decision-feedback filters
AU - Ogawa, Toshiaki
AU - Sasase, Iwao
AU - Mori, Shinsaku
PY - 1991
Y1 - 1991
N2 - The performance of a differential phase-shift-keying (DPSK) direct-sequence (DS) spread-spectrum receiver using decision-feedback (DF) filters in the presence of narrowband interference and multipath is considered. First, the general analytic expressions for the optimum tap weights of the DF filters and minimum mean square errors are obtained. Next, the authors calculate the output signal-to-noise ratio (SNR) of the system having the optimum tap weights. The authors also consider the bit-error-rate (BER) by computer simulation. Finally, the adaptive DF filters using a recursive least square (RLS) algorithm are considered. It is found that the two-sided DF filter is superior for suppressing both interference and multipath in the spread-spectrum system. The authors also find that the adaptive DF filter using the RLS algorithm has rapid convergence.
AB - The performance of a differential phase-shift-keying (DPSK) direct-sequence (DS) spread-spectrum receiver using decision-feedback (DF) filters in the presence of narrowband interference and multipath is considered. First, the general analytic expressions for the optimum tap weights of the DF filters and minimum mean square errors are obtained. Next, the authors calculate the output signal-to-noise ratio (SNR) of the system having the optimum tap weights. The authors also consider the bit-error-rate (BER) by computer simulation. Finally, the adaptive DF filters using a recursive least square (RLS) algorithm are considered. It is found that the two-sided DF filter is superior for suppressing both interference and multipath in the spread-spectrum system. The authors also find that the adaptive DF filter using the RLS algorithm has rapid convergence.
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M3 - Conference contribution
AN - SCOPUS:0026388318
SN - 0879426381
T3 - IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. Conference Proceedings
SP - 673
EP - 676
BT - IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. Conference Proceedings
A2 - Anon, null
PB - Publ by IEEE
T2 - Proceedings of the 1991 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Processing. Conference Proceedings
Y2 - 9 May 1991 through 10 May 1991
ER -