| 摘要 |
PROBLEM TO BE SOLVED: To make diversity synthesis work appropriately in the case that a level of quantization noise is different for each branch.SOLUTION: Each of a plurality of branch processing means has both or any one of a thermal noise corrector and a quantization noise corrector. The thermal noise corrector estimates an average power of thermal noise of a base band reception signal modulated with each carrier frequency isolated by discrete Fourier transformation, and corrects a value of the signal so as to be a predetermined value equal to those of the other all branch processing means. The quantization noise corrector, in the case that a value of a power estimated so that a quantization bit width of the base band reception signal becomes a small predetermined quantization bit width is larger than the quantization bit width after reduction, performs correction so that the power falls within the quantization bit width after reduction. |
