On transmitter gain/phase imbalance compensation at receiver

被引：26
|
作者：
Huang, XP [1 ]
机构：
[1] Commun Res Ctr, Ottawa, ON K2H 8S2, Canada
来源：
IEEE COMMUNICATIONS LETTERS | 2000年 / 4卷 / 11期
关键词：
gain control; phase control; quadrature amplitude modulation; quadrature phase shift keying;
D O I：
10.1109/4234.892203
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This letter explores benefits of compensating transmitter gain and phase imbalances in a receiver for quadrature communication systems. It is assumed that the gain and phase imbalances are introduced at the transmitter only. The Gram-Schmidt orthogonalization procedure is used at the receiver to compensate for the imbalances, Computer simulation has been performed to study a coherent differential QPSK communication system, It has been found that the bit error rate performance is improved significantly if the transmitter phase imbalance is compensated, However, no improvement can be obtained if the transmitter gain imbalance is compensated.
引用
收藏
页码：363 / 365
页数：3
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