摘要
介绍了一种具有对称滚降的信道特性的残留边带（ＶＳＢ）调制器实现方案．该方案基于带通信号 的抽样理论，通过直接边带成形和线形频谱搬移来实现调制过程．文中分析表明它在性能和硬件复杂度上具有一定的优越性，可适用于多电平ＶＳＢ调制。
An all digital implementation architecture was introduced for VSB modulators with symmetric roll-off factor for both spectrum sidebands. Based on sampling theorem, the modulation is completed by direct sideband spectrum shaping and linear frequency translation. Analyses show that this architecture has good performance and low hardware complexity, and it is applicable for multilevel VSB modulation.
