To avoid the use of costly multiplication IC the technique of hardware lockup table to realize mutiplication in low cost and real-time is used in these schemes The first scheme is to simplify hardware lockup table based on the multiplication allocating rule ;

为避免使用昂贵的乘法器集成电路，本文利用硬件查找 表方案来降低成本、实时实现相乘运算。其中：方案一根据乘法分配律来简化硬件 查找表的构成；