TY - GEN
T1 - A nonlinear distortion compensation method with adaptive predistorter and negative feed-back for a narrow-band signal
AU - Zhang, Yitao
AU - Muta, Osamu
AU - Akaiwa, Yoshihiko
PY - 2006/12/1
Y1 - 2006/12/1
N2 - As a method to compensate for the nonlinear distortion of a power amplifier, the adaptive predistorter and the negative feed-back system are known. Although the feed-back method is a simple technique, its instability becomes a problem for a high feedback gain to achieve a high compensation effect. On the other hand, the predistorter needs long time to calculate the suitable parameters. In this paper, we propose a nonlinear distortion compensation method for a narrow-band signal. In this method, adaptive predistorter and negative feedback are combined. With computer simulations, we show that the proposed scheme achieves both five times faster convergence speed than that of the predistorter and three times longer permissible delay time in the feed-back amplifier than that of a negative feed-back only amplifier, while keeping the required compensation performance.
AB - As a method to compensate for the nonlinear distortion of a power amplifier, the adaptive predistorter and the negative feed-back system are known. Although the feed-back method is a simple technique, its instability becomes a problem for a high feedback gain to achieve a high compensation effect. On the other hand, the predistorter needs long time to calculate the suitable parameters. In this paper, we propose a nonlinear distortion compensation method for a narrow-band signal. In this method, adaptive predistorter and negative feedback are combined. With computer simulations, we show that the proposed scheme achieves both five times faster convergence speed than that of the predistorter and three times longer permissible delay time in the feed-back amplifier than that of a negative feed-back only amplifier, while keeping the required compensation performance.
UR - http://www.scopus.com/inward/record.url?scp=34548819315&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548819315&partnerID=8YFLogxK
U2 - 10.1109/VTCF.2006.603
DO - 10.1109/VTCF.2006.603
M3 - Conference contribution
AN - SCOPUS:34548819315
SN - 1424400635
SN - 9781424400638
T3 - IEEE Vehicular Technology Conference
SP - 2931
EP - 2935
BT - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
T2 - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Y2 - 25 September 2006 through 28 September 2006
ER -