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1下载:
用matlab中的FFT函数实现了正弦信号,矩形信号,和白噪声的频谱分析,FFT with matlab function in a sinusoidal signal, the rectangular signal, and white noise spectrum analysis
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1.用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图
2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选
3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图
,1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their
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基于matlab,针对调幅AM、调频FM和调相PM信号,分析在不同的噪声环境,包括高斯白噪声、色噪声、非高斯噪声及正弦干扰中,各种信号的二阶循环谱。可根据需要改变程序中信号或噪声环境,分析结果。,Based on matlab, AM for AM, FM FM and PM phase modulation signals, analysis of noise in different environments, including Gaussian white noise, colored
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采用贝叶斯正则化算法提高BP网络的推广能力。在本例中,将采用两种训练方法,即L-M优化算法(trainlm)和贝叶斯正则化算法(trainbr),用以训练BP网络,使其能够拟合某一附加有白噪声的正弦样本数据。-The use of Bayesian regularization algorithm for BP network to improve generalization ability. In this case, two types of training methods will b
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对噪声信号中的正弦信号,通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计,信号源是: 其中, , , ; 是高斯白噪声,方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计,独立运行20次,记录各个方法的估计值,计算均值和方差; 2、增加噪声功率,观察和分析各种方法的性能。-Sinusoidal signal in the noise signal through the Pisarenko harmonic decomposition metho
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在matlab环境下仿真随机信号,括号内为内容(正弦信号、白噪声信号、正弦信号附加白噪声三种信号形式)
的代码,计算该随机信号的相关函数和功率谱-In the matlab simulation environment, random signals, the contents of brackets (sinusoidal signal, white noise signal, sine wave signal form of three additional white noise
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产生雷达中常用的sinc函数和chirp函数,以及均匀分布和高斯分布的白噪声-Commonly used in radar have sinc function and the chirp function, as well as the uniform distribution and Gaussian distribution white noise
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P0301:数字图像矩阵数据的显示及其傅立叶变换
P0302:二维离散余弦变换的图像压缩
P0303:采用灰度变换的方法增强图像的对比度
P0304:直方图均匀化
P0305:模拟图像受高斯白噪声和椒盐噪声的影响
P0306:采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307:采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308:图像的自适应魏纳滤波
P0309:运
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字母图像识别算法,O, E, A, U 四个字母进行识别,该算法加入一定噪声之后依然有效。-The basic goal of the program is to perform letter recognition of vowels O, E, A, U in paragraphs provided in form of black-and-white images. Using the training paragraph image, we are allowed to train ou
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该程序实现了基于小波模极大值,阈值去噪算法,并比较了各种方法的去噪效果。-The program achieved a de-noising based on wavelet modulus maxima algorithm, and effectively removes the signal in Gaussian white noise.
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OFDM下行的仿真1、产生要传输随机数;
2、进行调制;
3、串并转换;
4、进行IFFT操作(代码中有用到共轭对称向量的IFFT为实数进行简化计算);
5、增加循环前缀;
6、并串转换;
7、输出前滤波;
8、增加信道噪声(加性高斯白噪声);
9、接收端串并转换;
10、去除循环前缀;
11、进行FFT变换;
12、信号解调;
13、误比特率计算;
-OFDM downlink simulation 1, have t
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用MATLAB在产生的观测数据中捕获其中PRN 号码为“5”C/A 码。
(1) 观测数据应该有一定的多普勒频偏D f(-10kHz〈D f〈+10kHz);
(2) 加入高斯白噪声,使其信噪比为-20dB;
(3) 捕获成功后,应给出捕获标志,并给出估计的频偏和码偏值。-Generated by MATLAB in which observed data capture PRN number is " 5" C/A code. (1) there should b
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this an example of LDPC code in which after encoding i have added AWGN(Additive white Gaussian noise) and bsc(binary symmetric channel). then i hav performed decoding operation. one can easily devloped different BER vs Eb/N0 graph of different channe
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对一条直线进行白噪声驱动下的静态逐次滤波-Static white noise in successive filtering
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用 matlab实现均值滤波去高斯白噪声
用 matlab实现中值滤波去噪声
用理想低通滤波器在频率域实现低通滤波-Mean filter with matlab to implement Gaussian white noise with median filter matlab to achieve the ideal low-pass filter with the noise in the frequency domain low pass filter
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在自适应控制中,用Matlab算法实现白噪声及有色噪声序列的产生-In adaptive control, white noise with Matlab algorithm and the generation of colored noise sequence
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用matlab进行AMI编码的调试并进行文本的输出与输入 同时还可以直观的看到波形图-MATLAB program used to prepare the
AMI modulation and demodulation process, and in order to simulate the process of digital communication system, in the modulated Gaussian white noise after.
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使用这个matlab程序,你可以对图像实现加高斯白噪声或者椒盐噪声-whth this matlab code,You can add Gaussian white noise or salt and pepper noise on the purpose image
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使用matlab在16进制数据中加入高斯白噪声(程序虽小但是自己完成)-Using Matlab to add Gaussian white noise in the hexadecimal data (procedures may be small, but complete by myself)
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1.被动悬挂设计simulink模型
2.对于任意一段路面谱,求出其功率谱密度与频率的分布关系,在标准路面图中画出曲线验证路面
3.积分白噪声法路面构造simulink模型
4.整车平顺性分析simulink模型
5.实际路谱案例,c级路面
6.悬架动载荷功率谱密度图像画图matlab编程(1. Simulink model for passive suspension design 2. For any section of road spectrum, the
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