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lorenz
通过4阶龙格库塔方法求解混沌系统的微分方程(Through four order Runge-Kutta method for solving differential equations of chaotic systems)
- 2013-07-22 21:00:00下载
- 积分:1
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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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包含好几个合成地震记录的程序
压缩文件里边包含好几个合成地震记录的程序,包括楔形模型,断层等,有的还画出了地震记录,反射系数的振幅谱~(the zip file contains several synthetic seismogram programs, including wedge model, fault model, etc., some even draw the earthquake records, the reflection coefficient of amplitude spectrum ~)
- 2018-04-17 19:21:59下载
- 积分:1
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完整的OFDM
说明: 一个完整的OFDM通信系统,采用16QAM调制,设置不同的信噪比,得到误码率(A complete OFDM communication system adopts 16QAM modulation, sets different SNR, and gets bit error rate)
- 2020-05-31 11:25:17下载
- 积分:1
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embed.m.tar
this is a file for embedding a messge in an image
- 2010-06-23 21:38:47下载
- 积分:1
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Software-IA-03-Particle-swarm-optimization-em-Mat
In computer science, particle swarm optimization (PSO) is a computational method that optimizes a problem by iteratively trying to improve a candidate solution with regard to a given measure of quality.
- 2014-09-18 21:10:52下载
- 积分:1
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CS_OMP
正交匹配追踪算法—基于压缩感知信号重构.(Orthogonal Matching Pursuit algorithm- based on compressed sensing signal reconstruction)
- 2014-12-24 08:53:35下载
- 积分:1
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matlab
matlab自适应滤波器的程序.txt difenn de ru(matlab adaptive filter process. txt difenn de ru)
- 2008-04-23 14:37:46下载
- 积分:1
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103244852ofdmmatlab
OFDM限幅类峰均比,用于仿真OFDM系统中的限幅类峰均比。(Limiter type OFDM PAPR for OFDM simulation system PAPR limiting category.)
- 2008-05-26 16:33:36下载
- 积分:1
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filt1D
超声成像得到的射频信号转换为包络信号时的一维滤波(RF signals into ultrasound imaging to obtain one-dimensional filtering of the envelope signal when)
- 2013-12-03 05:06:11下载
- 积分:1