本論文乃考慮多載波調變信號在加成性高斯雜訊環境下，接收端已知各個載波頻率時，設計接收系統之濾波器模組，濾出各個單一載波訊號，供後續系統使用；載波數估側模組，考慮載波數目為一變化值，偵測多載波調變訊號之載波數；載波回復模組，回復載波因受雜訊、通道影響，產生的相位偏移，。此外藉由電腦模擬，了解系統效能，且提供系統中模組參數的設定。
本論文將提供接收系統之系統設計及完整的接收運作流程，並針對濾波器組、載波數估測、和載波回復的設計有詳盡的討論，並進行電腦模擬作效能的評估。

In this thesis, we discuss how to design a receiving system of multi-tone modulated signals when the carrier frequencies of received signals were known. We design the filter-bank module to filter the every single signal of multi-tone signal. It is necessary to ascertain much of carriers that multi-tone modulated signal have .So we design the carrier-number detection module in the receiving system to detect the carriers. Then we design the carrier recovery module to track the phase offset of single signal in the subchannels.

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