METHOD FOR DIRECT CURRENT COMPENSATION, DIRECT CURRENT COMPENSATOR AND BASEBAND SIGNAL PROCESSOR

摘要

The embodiments of the present invention relate to a method for direct current compensation, a direct current compensator and a baseband signal processor. Acquiring the average value of sampling points of polluted signals in the present estimation period; acquiring a rounding-up/rounding-down proportion of the decimal places according to the decimal places of the average value; rounding up or rounding down the decimal places of the average value according to the rounding-up/rounding-down proportion, to obtain an estimated value of the direct current; and carrying out a direct current compensation for polluted signals in the target estimation period by using the estimated value of the direct current. By using the method for direct current compensation, the direct current compensator and the baseband signal processor provided by the embodiments of the present invention, the accuracy of direct current compensation can be improved.