polyphase structure meaning in Chinese

多相组织

Fpga and dvb standard are introduced firstly , dvb - c standard and composition of its system are analyzed completely , development of modulator structure and dvb - c digital modulator composition are presented , more over , analysis of respective modular are given . then , principle of dvb - c digital modulator system are presented , they are error control technique 、 mqam 、 nyquist rule and root raised cosine filter 、 window design method for fir filter 、 multi - rate signal processing ( integer interpolating , conversion of fractional sampling , equal conversion of net structure , polyphase structure for filter , poly - phase structure for interpolator , multi - stage implementation of samplying conversion ) 、 distrubited algorithm 、 cic filter 、 dds 、 cordic algorithm
接着,专门利用一个章节阐述了dvb - c前端调制系统原理,他们了差错控制技术、多进制调制( mqam ) 、 nyquist准则与平方根升余弦滤波器、有限冲击响应滤波器的窗函数设计法、多抽样率信号处理包括(整数倍内插原理、分数倍抽样率转换、网络结构的等效结构、滤波器的多相表示、内插器的多相表示、抽样率转换的多级实现) 、分布式算法、 cic滤波器、直接数字频率合成( dds ) 、 cordic算法。