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The system mainly consisted of the PN code generator, the SS implement, the absolute-to-relative code converter, the digital sine wave signal generator, 2DPSK modulator and D/A converter. 電力線數(shù)字?jǐn)U頻通信系統(tǒng)的發(fā)送部分從結(jié)構(gòu)上看，主要由PN碼產(chǎn)生器、擴(kuò)頻器、碼變換器、數(shù)字正弦波信號(hào)發(fā)生器、2DPSK調(diào)制器以及D／A轉(zhuǎn)換器等幾個(gè)模塊組成。