包括地址产生单元、数据查询单元（可以重新初始化rom中的数据，由matlab产生.coe文件替换）、积分单元、抽取单元、梳状滤波单元，对于初学者很有帮助(Including address generation unit, data query unit (data can be re-initialized in rom, generated by matlab. COE file replacement), integration unit, extraction unit, comb fi