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DesignProject1
it is code for gsm speech coing
in the main.m,encoder.m,decoder.m,levision.m m-file .
it is helping in implement on matlab platform
- 2009-12-22 13:01:44下载
- 积分:1
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psd_eatmation
说明: 实现信号的功率谱估计,AR,MUSIC,FFT,周期图法(Achieve signal power spectrum estimation, AR, MUSIC, FFT, periodogram)
- 2010-04-18 22:49:51下载
- 积分:1
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Segmentation
基于直方图的自适应阈值法实现分割图像前景与背景,matlab编写,包含测试图像和实验报告(Foreground and background to achieve image segmentation histogram-based adaptive threshold method, matlab prepared, containing the test images and test reports)
- 2014-01-08 15:35:05下载
- 积分:1
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Liu_Zhang_Peterson_Chandra_PV
Large Area DEM Generation Using Airborne LiDAR Data and Quality Control
- 2014-09-18 23:47:06下载
- 积分:1
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heart500
基于mit数据库的时域心率算法,阈值自动更新,心率自动计算。(Mit database based on time-domain heart rate algorithm, the threshold value is automatically updated, heart rate calculated automatically.)
- 2013-09-21 21:03:49下载
- 积分:1
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tsp_ga
solve tsp using genetic algorithm using GUI matlab code
- 2014-11-20 16:27:43下载
- 积分:1
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runstringNew-65000
This is file for assembler code
- 2015-03-26 21:30:27下载
- 积分:1
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FIR
1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求,二者有什么不同。
b)使用 hamming 窗,将窗长增大 1 倍,设计 FIR。验证同样的窗函数类型
(hamming),不同窗长度时,设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通,并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通,通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
- 2017-07-06 11:55:24下载
- 积分:1
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Gibbs
吉布斯分布代码,常用于马尔科夫随机场分割和识别(Gibbs distribution code, commonly used for Markov Random Field segmentation and recognition)
- 2013-04-24 22:06:45下载
- 积分:1
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Carrier-aggregation-
LTE-A系统中载波聚合介绍,初学者适合理解其概念(Carrier aggregation for LTE-advanced mobile communication systems.pdf)
- 2013-12-24 15:09:54下载
- 积分:1