搜索资源列表
IIR滤波器设计
- 现有一个信号:x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的: 低通滤波器,滤除cos(2*π*n/3) 的成分,即想保留的成分为1+cos(π*n/4) 高通滤波器,滤除1+cos(π*n/4) 的成分,即想保留的成分为cos(2*π*n/3) 带通滤波器,滤除1+cos(2*π*n/3) 的成分,即想保留的成分为cos(π*n/4) 带阻滤波器,滤除cos(π*n/4) 的成分,即想保留的成分为1+cos(2*π*n/3)
eg
- x=2*sin(4*pi*t)+5*cos(8*pi*t) 对其进行快速傅立叶变换 加入高斯噪声 再进行频谱分析-x = 2 * sin (4 * pi * t) 5 * cos (8 * pi * t) makes its rapid Fourier transform to re-Gaussian noise spectral analysis
Test_Code1
- 已知一个序列x(n)=0.5cos(0.55*pi*n)+cos(0.45*pi*n),时域FFT分析其频谱。 (1)使用不同宽度的矩形窗截断该序列为M点,取M分别为:20,40,160,观察不同长度对频谱影响;(2)使用哈明窗和凯泽窗重做;(3)对三种窗的结果进行分析比较;(4)总结窗类型和长度对频谱分析的影响。
matlab(GA)2
- matlab遗传算法工具箱函数及实例讲解2 【问题】在-5<=Xi<=5,i=1,2区间内,求解 f(x1,x2)=-20*exp(-0.2*sqrt(0.5*(x1.^2+x2.^2)))-exp(0.5*(cos(2*pi*x1)+cos(2*pi*x2)))+22.71282的最小值。
xt
- 1、以不同的视角观察球面 和圆柱面 所围区域。2、画出s(t)=cos(2/3πf0t)的曲线及其付氏变换的曲线.设:f0=1KHz,时域分辨率 dt=0.01ms, 采样点数 N=2k, k>10.(均为M文件)
普通端射阵天线的matlab程序
- 普通端射阵天线的matlab程序 clear; f=3e10; lamda=(3e8)/f; beta=2.*pi/lamda; n=10; t=0:0.01:2*pi; d=lamda/4; W=beta.*d.*cos(t); z1=((n/2).* W)-n/2*beta*d; z2=((1/2).* W)-1/2*beta*d; F1=sin(z1)./(n.*sin(z2)); K1=abs(F1); polar(t,K1) ;
cossincordic.rar
- CORDIC算法的Matlab模拟,为了验证FPGA实现CORDIC算法的时间特性优于软件,用Matlab实现了一个计算sin, cos的CORDIC算法,Matlab simulation CORDIC algorithm, in order to verify the FPGA to achieve the time characteristics of CORDIC algorithm is superior to software, using Matlab calculated to
2004113084736415
- 想保留的成分为cos(2*π*n/3) 带通滤波器,滤除1+cos(2*π*n/3) 的成分,即想保留的成分为cos(π*n/4) 带阻滤波器,滤除cos(π*n/4) 的成分,-Want to keep the ingredients for the cos (2* π* n/3) band-pass filter, filter 1+ Cos (2* π* n/3) of the composition, that is, want to keep the ingredients of co
carry_trk_fll1
- 此程序对BPSK调制、载波锁频跟踪进行仿真,主要目的是锁频环-sintable(k+1)=sin(2*pi*k/2^10) costable(k+1)=cos(2*pi*k/2^10)
dsb-am
- 使用MATLAB对DSB-AM进行仿真:双边带幅度调制的过程以及对其中所包含的对信号的频谱分析都可以通过MATLAB中的M语句及相关函数来实现。假如信号m(t)=cos(m)以dsb-am方式调制载波c(t)=cos(20*pi*t),所的信号为y(t),并将采样频率定为 fs=100Hz,则可在MATLAB中设计程序对该幅度调制的结果进行仿真,绘制已调信号波形和频谱分析。-It is a example for DSB-AM based on MATLAB .
equal-area-critirea
- E=input( enter the generator voltage: ) V=input( enter the infinite bus voltage: ) Gx=input( enter the reactance of generator: ) L1x=input( enter the line reactance: ) L2x=input( enter the line reactance: ) L3x=input( enter the line re
FIR
- designed a lowpass filter to extract cos(0.1*pi) component from x(n) -designed a lowpass filter to extract cos (0.1* pi) component from x (n)
bandpass_filter
- extracting cos(0.3*pi*n)component by designing the bandpass filter-extracting cos (0.3* pi* n) component by designing the bandpass filter
MOMantena
- matlab求解半波天线,矩量法解双位方程,求直线天线表面电流分布 -matlab--antenau=u+I1(1,m).*sin(thita(1,n)).*exp(j*k0*z(1,m).*cos(thita(1,n))).*L/(N*lamda)
FourierSeries
- Program to plot x(t) =1/2+∑_(n=1)^∞▒ (sinc 〖n/2〗 〖 cos 〗 〖2πnt/4〗 ) Include n-value (Number of Terms) in graph on plot. Show 2 graphs, original and simulated together.- Program to plot x(t) =1/2+∑_(n=1)^∞▒ (sinc 〖
fft_ex
- Matlab code for FFT with two cos functions
cos
- 啁啾cos周期光纤光栅 Cos-period fiber grating chirp
CORDIC算法及例程sincos
- matlab实现cordic算法求解sin、cos例程(cordic algorithm about sin&cos achieved by matlab)
Discrete
- 1-cos离散阵风模型matlab程序,可以将其应用于飞机的阵风环节(1-cos discrete gust model matlab procedures,It can be applied to the gust of an aircraft)
用遗传算法求解f(x)=10*sin(5x)+7*cos(4x),x∈[0,10]上的最大值
- 用遗传算法求解f(x)=10*sin(5x)+7*cos(4x),x∈[0,10]上的最大值