| 摘要 |
PURPOSE:To prevent reception sensitivity from deteriorating by controlling the gain of each signal by weighing based on a nonlinear weighting function, and synthesizing obtained signals. CONSTITUTION:Part of signals at every polarization components in X direction and Y direction are branched and taken out by branching means 11a and 11b, respectively. The weighting based on the non-linear weighting function f(a) is decided by weighing means 12a and 12b corresponding to a branched signal power. The gain of each signal can be controlled by gain control means 13a and 13b by the weighing decided in such way. And a synthetic signal can be outputted by synthesizing signals obtained by the gain control means 13a and 13b with each other, respectively by a synthesizing means 14. In such a way, it is possible to prevent the reception sensitivity from deteriorating without using a conventional square rule synthetic method. |
