| 主权项 |
1. A signal receiving apparatus, applicable in a wireless system, comprising:
an adjustment circuit, configured to receive a received signal having a first direct current (DC) signal and to adjust the first DC signal according to an adjustment signal to generate an adjusted receiving signal having a second DC signal; a first calculation circuit, configured to generate an error signal according to a comparison of the second DC signal with a target DC signal, the first calculation circuit comprising:
an analog to digital converter (ADC), configured to convert the second DC signal from analog form to digital form; anda first digital processing circuit, configured to calculate the error between the second DC signal and the target DC signal to generate the error signal, the first digital processing circuit comprising:
a first logic circuit, configured to generate a differential calculus signal according to the second DC signal and a prior DC signal;a second logic circuit, configured to generate an integral calculus signal and the prior DC signal by operating integral calculus on the differential calculus signal; anda third logic circuit, configured to generate the error signal according to the integral calculus signal and the target DC signal; and a second calculation circuit, configured to generate a change rate according to the error signal and to update the adjustment signal according to the change rate and the error signal. |
