利用数字滤波器的不同模拟化设计方法，进行了计算机上的设计实现，检验并比较了不同形式的数字滤波器的设计方法的特性。
Digital wave filters were designed with the computer by use of different simulation design methods, and the design features of different digital filters were checked and compared.
采用不同的形态运算所构成的不同形态滤波器，其滤波效果是不同的。
Different morphologic arithmetic, which forms a morphologic filter namely morphologic operator, could get different result of filtering.
采用不同的形态运算所构成的不同形态滤波器，其滤波效果是不同的。
Different morphologic arithmetic, which forms a morphologic filter namely morphologic operator, could get different result of filtering.
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