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DSP
说明: 首先,建立两个模拟信号的数学模型 有用信号 干扰信号。两个信号的中心频率、信号带宽等参数由学生自己选定,要求两个信号的频谱不重叠 分别画出三个模拟信号的时域波形和频谱图;然后,根据x_a (t)的中心频率和带宽,按照奈奎斯特采样定理选择采样频率fs,分别对信号s_a1 (t)、s_a2 (t)、x_a (t)进行时域采样,得到离散信号s_1 (n)、s_2 (n)、x(n)。利用FFT算法分析离散信号的频谱,分别画出三个离散信号的时域波形和频谱图;
接着,设计数字滤波器H(z),要求该滤波器对干扰信号s_2 (n)的衰减大于40dB。提出滤波器的设计指标,并设计滤波器,给出滤波器的设计结果,绘制滤波器的幅频特性和相频特性曲线,验证滤波器的设计结果是否达到设计指标要求;此外,选择实现数字滤波器H(z)的结构,画出滤波器结构信号流图;然后,将合成信号x(n)输入数字滤波器H(z),按照所选择的滤波器结构,设计计算机程序计算滤波器的输出响应y(n),画出y(n)的时域波形和频谱图;(the synthetic signal x (n) is input into the digital filter H (z). According to the selected filter structure, a computer program is designed to calculate the output response y (n) of the filter, and the time-domain waveform and spectrum diagram of Y (n) are drawn)
- 2020-05-26 14:26:10下载
- 积分:1
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802.16d
802.16 physical layer simulation through diferent SUI Channel.
- 2009-04-04 17:52:31下载
- 积分:1
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Floyd-dijkstra-m-atlab
简单的路径优化问题很实用的 程序代码,可以选择(For simple path optimization problem very useful program code, you can choose)
- 2013-04-29 23:04:09下载
- 积分:1
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DSP6
LMS的一个好算法,你可以自己动手。仿真通信系统,让你收益。好东西大家一起分享(LMS is a good algorithm, you can do-it-yourself. Simulation of communication systems, allows you the proceeds. Good things share with everyone)
- 2007-08-21 18:55:58下载
- 积分:1
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DCM_speed_control
parameter of dc motor
- 2014-12-10 14:42:14下载
- 积分:1
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NBCOFdEst
窄带相关脉冲估计多普勒频移(包括解模糊算法)(Narrowband related pulse Doppler shift estimation (including solution fuzzy algorithm))
- 2013-11-23 22:49:27下载
- 积分:1
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test2
基于windows平台vs2010和opencv2.4.10和zbar的二维码识别程序。(Based on the Windows platform vs2010 and opencv2.4.10 and zbar qr code identification procedures.)
- 2021-04-02 15:59:08下载
- 积分:1
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caiyangdianshu
当信号采样点数很少时,不能很好的恢复原模拟信号,导致原始信号中的一部分丢失。而当信号的采样点数增多到1024时,其分辨率很好,可以有效的区分信号的信息,当采样点数继续增多时,其恢复为原始模拟信号的精度越高且不丢失原始信号。(When the signal is small when the sampling points can not be good to restore the original analog signal, causing part of the original signal is lost. When the signal is increased to 1024 sampling points, its resolution is very good, can effectively distinguish the signal information, continue to increase when the sampling points, its back to the higher accuracy of the original analog signal without loss of the original signal.)
- 2011-06-13 10:24:20下载
- 积分:1
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niudunfa
本程序的功能是用牛顿——拉夫逊法进行潮流计算。程序为10节点,10支路。供研究电力系统潮流的人员参考。(This procedure is the function of the Newton- Raphson method flow calculation. Procedures for the 10-node, 10 branches. Power Flow for research officers.)
- 2013-08-08 20:37:12下载
- 积分:1
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otsu22
实现一维二维灰度直方图图像分割的matlab实现源代码。(Realization of a two- dimensional histogram image segmentation matlab source code.)
- 2015-07-06 22:17:18下载
- 积分:1