On transmitter gain/phase imbalance compensation at receiver
- 1 November 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Letters
- Vol. 4 (11), 363-365
- https://doi.org/10.1109/4234.892203
Abstract
This letter explores the benefits of compensating for 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 for. However, no improvement can be obtained if the transmitter gain imbalance is compensated for.Keywords
This publication has 2 references indexed in Scilit:
- I/Q-channel regeneration in 5-port junction based direct receiversPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1999
- Adaptive compensation for imbalance and offset losses in direct conversion transceiversIEEE Transactions on Vehicular Technology, 1993