| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a communication system suitable for mass-production at low cost by correcting the characteristic fluctuation of an analog signal processing part. SOLUTION: An RF module part 100 has a second received signal processing circuit 40, a second transmitting signal processing circuit 50, a reference signal generating circuit 60 and an input path switching circuit 70 and when a first control signal is inputted, switching to a first input path is performed by the input path switching circuit 70 but when a second control signal is inputted, switching to a second input path is performed by the input path switching circuit 70. A baseband part 200 outputs the first control signal to the RF module part 100, inputs a processed received signal provided through the first input path, estimates the characteristics of the second received signal processing circuit 40 on the basis of the inputted processed received signal, outputs the second control signal to the RF module part 100, inputs a processed received signal provided through the second input path and corrects the inputted processed received signal on the basis of the estimated result of the characteristics.</p> |
