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能够用数学计算的方法增强信号,降低干扰的滤波器是()

单选题
2021-09-01 23:55
A、一阶低通滤波器
B、二阶低通滤波器
C、数字滤波器
D、一阶高通滤波器
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正确答案
C

试题解析

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