首页>
外国专利>
Correction of quadrature phase imbalance and gain imbalance using dual CORDIC architecture during receiver low frequency conversion
Correction of quadrature phase imbalance and gain imbalance using dual CORDIC architecture during receiver low frequency conversion
展开▼
机译:在接收器低频转换期间使用双CORDIC架构校正正交相位不平衡和增益不平衡
展开▼
页面导航
摘要
著录项
相似文献
摘要
A digital radio receiver comprises: a first section arranged to receive an analog radio signal and to generate therefrom digital intermediate frequency I and Q channel samples, a second section arranged to convert said I and Q channel samples to a lower, baseband frequency, said second section comprising: a first coordinate rotation digital computer module arranged to perform a complex rotation of the I channel samples; a second coordinate rotation digital computer module arranged to perform a complex rotation of the Q channel samples; a phase accumulator arranged to provide an output signal representing a complex rotation to be applied to each of the I and Q channel samples, wherein the second section is arranged such that the phase accumulator output signal is modified by a phase offset signal prior to being supplied to one of the first and second coordinate rotation digital computers.
展开▼