OFDM調(diào)制解調(diào)電路的基本構(gòu)成方框圖，輸入數(shù)據(jù)經(jīng)串，井轉(zhuǎn)換成并行的多路數(shù)據(jù)，
經(jīng)多路調(diào)制后再經(jīng)并，串轉(zhuǎn)換變成串行數(shù)據(jù)，再經(jīng)D/A轉(zhuǎn)換，然后經(jīng)低通濾波器和調(diào)制器調(diào)制后經(jīng)帶通濾
波器(BPF)，然后進(jìn)行發(fā)射傳輸。在接收端經(jīng)帶通濾波器(BPF)將載波選入，再進(jìn)行解調(diào)和低通取出
調(diào)制信號(hào)，然后經(jīng)A/D轉(zhuǎn)換器再變成數(shù)據(jù)信號(hào)，數(shù)據(jù)信號(hào)經(jīng)串，并轉(zhuǎn)換變成多路多載頻調(diào)制信號(hào)，經(jīng)OFDM
解調(diào)后經(jīng)并，串轉(zhuǎn)換恢復(fù)成原數(shù)據(jù)信號(hào)輸出。