【摘要】 分析了软件无线电常用的基于欠采样数字正交解调系统中可能产生的各种误差,给出了这些误差对信号的影响,并利用高斯-牛顿迭代法校正系统中由误差产生的幅度和相位的不平衡,最后给出了仿真结果.更多还原

【Abstract】 The thesis analyzes in detail possible errors of subsampling digital quadrature system widely applied in software-defined radio(SDR).The effects of possible errors on signals are showed and Gauss-Newton interative method is used to calibrate the amplitude and phase imbalances caused by the errors.Lastly,the simulation results are given.更多还原