周期信号的频谱是
A.离散的,且谐波幅值随谐波次数的增加而降低
B.离散的,且谐波幅值随谐波次数的增加而增加
C.连续的,且谐波幅值随谐波次数的增加而降低
D.连续的,且谐波幅值随谐波次数的增加而增加
正确答案是A
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/811203.html
上一篇:Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.You ought to drive very cautiously on such a ( )day. (fog)
Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
You ought to drive very cautiously on such a ( )day. (fog)
下一篇:以下关于系统的概念,错误的是()