| 摘要 |
PURPOSE: A compensating method and a device of DC(direct conversion) offset shifted in sample signal is provided to realize new DC receiver for cellular communication system without performance degradation due to strong interferer. CONSTITUTION: A compensating device of D.C. offset shifted in sample signal comprises a unit generating samples of a base band signal, a unit generating the estimate of mean value to the samples, a unit detecting the shift of DC level of the base band signal on the basis of present sample, and a unit removing the shift of the DC level. The shift of DC level is removed by generating the sample compensated by the difference between the present sample value and the estimate. |
