下载APP
【多选题】
关于最佳线性滤波器，下列说法正确的有：
A.
它对信号的各频率分量起到的是幅度相加的作用；
B.
它对噪声的各频率分量起到的是功率相加的作用；
C.
是在白噪声背景下使输出信噪比最大的最佳线性滤波器；
D.
是使输出的信号平均功率与噪声的平均功率之比最大的线性滤波器。
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】最佳修复方案是
A.
直接改为活动义齿修复
B.
采用种植固定义齿修复
C.
全冠修复基牙后再改为活动义齿修复
D.
增加前端基牙数再行固定修复
E.
增加前端基牙数目再行固定活动联合修复
【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing (裁判) decisions that denied victory to their team. A researcher was appointed to study the performanc...
A.
The ideal retirement age for an experienced football referee is 35.
B.
Age should not be the chief consideration in choosing a football referee.
C.
A football referee should be as young and energetic as possible.
D.
An experienced football referee can do well even when in poor physical condition.
【单选题】Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing(裁判) decisions that denied victory to their team. A researcher was appointed to study the performance...
A.
slightly above average
B.
higher than in the 1998 World Cup
C.
quite unexpected
D.
as high as in a standard match