Modeling distortion in multichannel communication systems

被引:7
作者
Gharaibeh, KM [1 ]
Steer, MB [1 ]
机构
[1] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27606 USA
基金
美国国家科学基金会;
关键词
behavioral modeling code division multiple access (CDMA); cross-modulation distortion; multichannel; nonlinear systems; power amplifiers; statistical modeling;
D O I
10.1109/TMTT.2005.847064
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A behavioral modeling technique suited to capturing the response of wide-band multifunctional and multichannel amplifiers is introduced. The technique is based on the three-box approximation of the Volterra model and takes into account the dependence of the amplifier characteristics on frequency. The model is coupled with a new nonlinear statistical analysis, which enables accurate estimation of intermodulation and cross-modulation distortions of multiple digitally modulated signals. The model parameters can be obtained using simple measurements.
引用
收藏
页码:1682 / 1692
页数:11
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