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example4_4
例4:在sinc(t)信号中叠加噪声,分析对应频谱
fs=100 采样频率,必须大于两倍基带信号最高频率
ts=1/fs 采样时间间隔
T=2 时间窗大小
(
x=x+0.1*randn(1,N)
x=awgn(x,-10, measured )
figure
plot(t,x)
title( 时域信号图 )
xlabel( t /s )
y=fft(x,N)
figure
if mod(N,2)~=0
N=N-1
end
f=linspace(0,fs/2,N/2)
plot(f,abs(y(1:N/2))*2/N)
title( 叠加噪声的sinc(t)信号频谱 )
xlabel( f /Hz )
figure
y0=y(1:N/2)
P=y0.*conj(y0)/N
P=10*log10(P)
plot(f,P)
title( 功率谱 )
xlabel( f /Hz )
)
- 2010-05-25 20:59:03下载
- 积分:1
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cpp-primer-code
cpp-primer-code预编码,仅供参考(cpp-primer-code pre-coding, for reference only)
- 2009-01-21 08:19:42下载
- 积分:1
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C1-
应用于地震勘探领域的资料处理,第一代相干算法处理。(Used in seismic exploration in the field of data processing, the first generation of coherent algorithm processing.)
- 2013-12-23 20:51:42下载
- 积分:1
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design
轨道设计,确定着陆准备轨道近月点和远月点的位置,以及嫦娥三号相应速度的大小与方向。(Track design, determine the location of the landing point in recent months to prepare the track and Apolune, as well as the size and direction of the Chang-e III corresponding velocity.)
- 2014-09-12 17:06:03下载
- 积分:1
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SEP-matlabe.m
经典的SEP协议,代码完全正确,以及运行验证,对初学WSN路由协议的同学很有帮助。(Classic SEP protocol, the code is correct, and run the validation for beginner students WSN routing protocol is helpful.)
- 2014-01-20 17:25:06下载
- 积分:1
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3.3
升余弦信号的功率谱及眼图 用matlab实现
(Raised cosine power spectrum and eye diagram)
- 2011-06-09 14:46:56下载
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123
2元BPSK调制加高斯信道硬判决统计误码率(2 yuan plus Gaussian channel BPSK modulation hard decision error rate statistics)
- 2013-12-12 14:58:58下载
- 积分:1
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bm308
有借鉴意义哦,这个有中文注释,看得明白,计算晶粒的生长,入门级别程序。( There are reference Oh, The Chinese have a comment, understand it, Calculation of growth, entry-level program grain.)
- 2020-06-30 23:00:02下载
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FFTandpowr
利用MATLAB和VC共同开发的信号处理程序。(Using MATLAB and VC joint development of signal processing.)
- 2010-05-31 23:56:30下载
- 积分:1
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@ccshelp
说明: 一个MATLAB的应用程序,很方便的!使用时需要转换为M文件。(A MATLAB application, very convenient! The use of M need to convert files.)
- 2006-03-16 16:35:18下载
- 积分:1