| 摘要 |
A receiver device has a plurality of signal reception processing circuits, which processes GPS positioning signals of different carrier wave frequencies received by an antenna. In the receiver device, the positioning signals are converted into intermediate frequency signals in a first stage, which includes phase shifters, mixers and complex filters. The receiver device further has dividers of frequency-dividing ratios, which are set variably in accordance with the carrier wave frequencies in the respective signal reception processing circuits. By changing the frequency-dividing ratios, the receiver device can be adapted to receive other positioning signals.
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