题目内容
（请给出正确答案）
[主观题]
利用模拟Butterworth低通滤波器和脉冲响应不变法，设计一个满足下列条件的数字低通滤波器。 |H（ejΩ)|≤0.2
利用模拟Butterworth低通滤波器和脉冲响应不变法，设计一个满足下列条件的数字低通滤波器。
|H(ejΩ)|≤0.2 0.6π≤Ω≤π
查看答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
利用模拟Butterworth低通滤波器和脉冲响应不变法，设计一个满足下列条件的数字低通滤波器。
|H(ejΩ)|≤0.2 0.6π≤Ω≤π
如果结果不匹配，请 联系老师 获取答案
更多“利用模拟Butterworth低通滤波器和脉冲响应不变法，设…”相关的问题
某电路有用信号频率为2 kHz，可选用__________。
A．低通滤波器
B．高通滤波器
C．带通滤波器
D．带阻滤波器
一个RC低通滤波器如下图所示，假设输入是均值为零、功率谱密度为n0/2的高斯白噪声时，试求：
It was in the spring of his thirty-fifth year that father married my mother, then a country school teacher, and in the following spring I came wriggling and crying into the world. Something happened to the two people. They became ambitious. The American idea of getting up in the world took possession of them.
It may have been that mother was responsible. Being a school teacher, she had no doubt read books and magazines. She had, I presume, read of how Garfield, Lincoln, and other Americans rose from poverty to fame and greatness, and as I lay beside her—in the days of her lying-in—she may have dreamed that I would someday rule men and cities. At any rate she induced father to give up his place as farmhand, sell his horse, and embark on an independent enterprise of his own. She was a tall silent woman with a long nose and troubled gray eyes. For herself she wanted nothing. For father and me she was incurably ambitious.
According to the narrator, his father's life used to be______.
A．quite poor
B．quite hard
C．quite happy
D．quite rich
