登陆题目详情
单选题 用频域采样法设计一个低通数字滤波器,要求滤波器的阻带衰减需要达到60dB,那么应该在滤波器频率响应的过渡带上,至少采样几个点
学科：数字信号处理
时间：2025-06-21 00:00:55
相关题目
题目1单选题
<img src="https://tihai-oss-cloud.itihey.com/img/70984aaf008aaead354dcf5ed00e8379.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/7ff7fe3162d4d46752c20aa7eb226d28.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/3662beecdd2b1ed78af227e4d6f58fcc.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/e849a1be6f5e88f79c2c9c9477fa3a7f.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/edb9b40d9550b8dcd17136ecbfde3449.png">
题目2单选题
<img src="https://tihai-oss-cloud.itihey.com/img/8840b12eae1f1b961f12f4279d06195d.png">A. 系统因果稳定B. 系统非因果稳定C. 系统因果不稳定D. 系统非因果不稳定
题目3单选题
假设用窗函数法设计一个阻带衰减至少达到60dB的数字滤波器,则应该选择以下哪种窗函数进行设计A. 矩形窗B. 汉宁窗C. 哈明窗D. 布莱克曼窗
题目4单选题
<img src="https://tihai-oss-cloud.itihey.com/img/3ca6f72b645900844e9af6e727769e19.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/dc15585917293ec4430fb68ae9d1ec4f.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/73a8a10ef6e5ff8a10aa8a7ba79ea7b6.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/d86f38723252ffbec078b818f02cca3a.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/f6c6503061510641b619043c0fcfaf37.png">
题目5单选题
<img src="https://tihai-oss-cloud.itihey.com/img/77f407cac32caad6565d11e807d7a823.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/fe6fb920816746dd6d396c767f7983a3.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/b662314e9b36c065f9536fb2ed1c7521.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/b6a7f96326e2a1af43ad6ce7f524f8e6.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/891f9308d2fbdc99879923ed2f80bca1.png">
题目6单选题
<img src="https://tihai-oss-cloud.itihey.com/img/d86c3a01641af417d408503ae101a63a.png">A. 线性移变系统B. 线性移不变系统C. 非线性移变系统D. 非线性移不变系统
题目7单选题
用频域采样法设计一个低通数字滤波器,要求滤波器的阻带衰减需要达到60dB,那么应该在滤波器频率响应的过渡带上,至少采样几个点A. 0个B. 1个C. 2个
题目8单选题
<img src="https://tihai-oss-cloud.itihey.com/img/13f5845ad31c49d4d7d8aae4db05a90d.png">A. 因果、稳定系统B. 非因果、稳定系统C. 因果、非稳定系统D. 非因果、非稳定系统
题目9单选题
<img src="https://tihai-oss-cloud.itihey.com/img/936e2d696f46ce06b46b516d869837f0.png">A. 5B. 4C. 8D. 该序列无周期
题目10单选题
<img src="https://tihai-oss-cloud.itihey.com/img/6df4daa16c4f43f191c91b8c90c6c6df.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/86756fed94868f29f481f15c68ccfa08.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/b06bbb77752062068df81c3a5e8f6206.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/667157755ad8626e246ac81a7e60ac32.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/4827e1de7706011d6bc1a33090d24b47.png">
下载 题海APP
拍照搜题更快捷
- 海量题库
- 无搜索限制
- 快捷拍照搜题
