-
ss_Pe96
说明: 这个程序是描述了跳频系统在部分边带干扰下的BFSK系统的仿真,主要是误码率计算函数(This procedure is described in some side-band frequency-hopping system under the disturbance of the BFSK system simulation, bit error rate is mainly a function)
- 2010-03-29 22:00:55下载
- 积分:1
-
LS_diffusion
偏微分方程:matlab实现林石算子扩散去噪算法 (Lin Shi operator to achieve diffusion filtering)
- 2010-05-05 19:03:52下载
- 积分:1
-
guyoupinlvmax
运用遗传算法进行编码,求解汽车发动机悬置系统的固有频率的最大值(The use of genetic algorithm coding, automotive engine mounting system to solve the natural frequency of the maximum)
- 2011-09-01 10:10:13下载
- 积分:1
-
New-Microsoft-Word-Document
it will nagative the i/p image
- 2013-12-17 18:50:42下载
- 积分:1
-
Ev
说明: 基于MATLAB的多类型电动汽车充电负荷仿真模型(electric vehicle charging load simulation based on MATLAB )
- 2015-07-22 10:23:09下载
- 积分:1
-
pcmcode
律u律pcm编码
若输入A律PCM编码器的正弦信号为x(t)=sin(1600πt),采样序列为x(n)=sin(0.2πn),n=0,1,2,…,10,将其进行PCM编码,求出编码器的输出码组序列y(n)。
要求:1) 直接采用A律扩展器函数求解上述问题。
2)使用13折线法近似A律PCM 求解上述问题。
3)计算量化误差。(Law a law pcm coding
If the input A-law PCM encoder is sinusoidal signal x (t) = sin (1600πt), for the sample sequence x (n) = sin (0.2πn), n = 0,1,2, ..., 10, it will be PCM coding to obtain the coded output code group sequence y (n).
Requirements: 1) directly A-law expander function to solve the above problems.
2) using a 13 fold line approximation A-law PCM to solve the above problems.
3) calculating the quantization error.)
- 2016-04-06 19:30:12下载
- 积分:1
-
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
-
comet
卫星返回地球的运动轨线示意图,做成动画,看着有动感。(Satellite to return to the Earth s movement trajectory diagram and create animation, looking at dynamic.)
- 2008-01-07 19:12:57下载
- 积分:1
-
code
MIT的EECS学院本科新生入学第一门课程introduction_to_cs&programming的作业答案,也是学习python语言和计算机科学很好的资料。(Institute of MIT' s EECS undergraduate admission first course introduction_to_cs & programming operating the answer is to learn good python language and computer science information.)
- 2010-09-20 20:40:49下载
- 积分:1
-
javAX25-master
AX.25是一个数据打包协议,用于信号数据提供高效率的传输(AX.25 is a data package protocol for signal data to provide efficient transmission)
- 2014-10-23 13:12:51下载
- 积分:1