A Calibration Method by Correlated Noise Injection with Distribution Networks Overlapped on a Closed Loop
Miao Feng · Yaogan jishu yu yingyong · 2011
A calibration method of receiving in-phase error and amplitude error is brought out,which overlap many 1︰4 noise distribution networks on a closed loop to achieve 1︰1 0 noise distribution network.The method's robust is also analyzed,the result shows in-phase remain error is less than 2.3 degree when the unseparated in-phase error is 1 degree,quadrature error is 0.5 degree and random error is 2%,which indicates the calibration overlapped on a closed loop is prior to the opened one.