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[matlab] aliasingmatlabbylrmaster DL : 0: aliasing in matlab by lrmaster,aliasing in matlab by lrmaster-aliasing in Matlab by lrmaster. aliasing in Matlab by lrmaster
Date : 2025-12-25 Size : 1002kb User : kauiyue
[matlab] pinpufenxi DL : 0: 本程序仿真了信号与系统中的频谱混叠，频谱泄漏和栅栏现象，包含三个文件：pinpufenxi.m, pinpufenxi.fig和一份word简介文档。-the process of signal simulation system with a spectrum-aliasing, spectrum leakage and fencing, contains three documents : pinpufenxi.m, pinpufenxi.fig and a brief word document.
Date : 2025-12-25 Size : 14kb User : 郇世昶
[matlab] matlab-signal DL : 1: 用c语言实现下列的数字信号处理算法 1．离散傅里叶级数合成连续周期信号 2．DIF FFT 测试程序 3．将输入数据的幅度画出图形 4．使用FFT实现快速卷积 5．使用FFT实现快速相关 6．取样混迭演示程序 -language used to achieve the following digital signal processing algorithms 1. Discrete Fourier series synthetic signal two consecutive cycles. DIF FFT three test procedures. The input data rate of 4 paint graphics. Use FFT fast convolution 5. Use FFT fast correlation 6. Aliasing sampling Demonstration Program
Date : 2025-12-25 Size : 19kb User : 胡叶
[matlab] 03607_28 DL : 0: DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。-DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.
Date : 2025-12-25 Size : 145kb User : qinyang
[matlab] PkgMyAntiAlias DL : 0: Add myaa.m to your path and enjoy anti-aliased professionally looking graphics in Matlab at any time. Myaa works with any kind of graphic (3-D, plots, scatterplots, ...) and even adds anti-aliasing to text, ui controls and grids. Myaa is ideal for complex, cluttered and saturated plots.
Date : 2025-12-25 Size : 267kb User : Alex Qun
[matlab] PkgMyAntiAlias DL : 0: 一种比较好的抗锯齿算法 Add myaa.m to your path and enjoy anti-aliased professionally looking graphics in Matlab at any time. Myaa works with any kind of graphic (3-D, plots, scatterplots, ...) and even adds anti-aliasing to text, ui controls and grids. Myaa is ideal for complex, cluttered and saturated plots. See attached screenshot for a demonstration. More examples included in the code, just run help myaa . Curiosa: For those of you who publish your code often, an undocumented anti-aliasing option is included in the snapnow.m function in Matlab. To publish a file called test.m you can do: opts.figureSnapMethod = antialiased publish( test.m ,opts) However, you will have more control over the process using myaa, which is also the best choice when using Matlab interactively.-A better anti-aliasing algorithm Add myaa.m to your path and enjoy anti-aliased professionally looking graphics in Matlab at any time. Myaa works with any kind of graphic (3-D, plots, scatterplots, ...) and even adds anti-aliasing to text, ui controls and grids. Myaa is ideal for complex, cluttered and saturated plots.See attached screenshot for a demonstration. More examples included in the code, just run help myaa. Curiosa: For those of you who publish your code often, an undocumented anti-aliasing option is included in the snapnow.m function in Matlab. To publish a file called test.m you can do: opts.figureSnapMethod = antialiased publish (test.m, opts) However, you will have more control over the process using myaa, which is also the best choice when using Matlab interactively.
Date : 2025-12-25 Size : 267kb User : zzn
[matlab] 2008_2 DL : 0: (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 -(1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.
Date : 2025-12-25 Size : 55kb User : haohao
[matlab] envelopedetector DL : 0: Title : Implementation of quadrature modulation and demodulation Design Object : By implementing quadrature modulation and demodulation of analog signals in digital signal processing, students will have better understanding of sampling and frequency analysis of discrete-time signals. Design Content : Make a MATLAB function which performs quadrature modulation and demodulation for a input signal with anti-aliasing filtering.
Date : 2025-12-25 Size : 1kb User : song
[matlab] mallat DL : 0: 改进的mallat算法，消除了频率的混叠，可以用于提取故障频率-Improved mallat algorithm, eliminating the frequency aliasing, the frequency can be used to extract the fault
Date : 2025-12-25 Size : 2kb User : ivy
[matlab] 1 DL : 0: 观察高斯序列的时域和幅频特性。 ①固定p=8，q分别等于2、4、8，观察它们的时域和幅频特性，了解当q取不同值时，对信号序列的时域和幅频特性的影响 ②固定q=8，p分别等于8、13、14，观察p变化对信号序列时域和幅频特性的影响，注意p等于多少时，会发生明显的泄露现象，混叠是否也随之出现？记录实验中观察到得现象，绘出相应的时域序列和幅频特性曲线-Observed Gaussian sequence in time domain and amplitude-frequency characteristics. ① fixed p = 8, q is equal to 2,4,8 respectively, to observe them in time domain and amplitude-frequency characteristics, to understand when the different values of q, the signal sequence in time domain and amplitude-frequency characteristics of ② fixed q = 8 , p is equal to 8,13,14 respectively, to observe the changes in the signal sequence p in time domain and amplitude-frequency characteristics, note that p is equal to the number when the apparent leakage phenomenon, aliasing is also gone? Records of the experiment was observed phenomenon, draw the corresponding time-domain sequence and amplitude-frequency characteristic curves
Date : 2025-12-25 Size : 3kb User : herb wong
[matlab] aliasing_for_time_domain_signal.m DL : 0: This package contains script to calculate aliasing for given time domain signal. Script to plot in time domain the function: x(t)=A0cos(2pif0t)+A1cos(2pif1t) where fs1=300 Hz and fs2=150 Hz (sampling rate) A0 and A1 are amplitude s signal (armónicos). f0 is the maximun component in frecuency of the signal to sample, when it shows X(t) signal with a sampling frecuency 300 Hz, we will see Aliasing :) It s because we aren t meetting with the Nyquist Theorem, because we don t choice Fs>=2FNy Fs(Sampling Frec) FNy(Frec Nyquist) to sample aplying fft(fast fourier transform) with at least 600 Hz. By actinio --vjgonzalezg@gmail.com-This package contains script to calculate aliasing for given time domain signal. Script to plot in time domain the function: x(t)=A0cos(2pif0t)+A1cos(2pif1t) where fs1=300 Hz and fs2=150 Hz (sampling rate) A0 and A1 are amplitude s signal (armónicos). f0 is the maximun component in frecuency of the signal to sample, when it shows X(t) signal with a sampling frecuency 300 Hz, we will see Aliasing :) It s because we aren t meetting with the Nyquist Theorem, because we don t choice Fs>=2FNy Fs(Sampling Frec) FNy(Frec Nyquist) to sample aplying fft(fast fourier transform) with at least 600 Hz. By actinio --vjgonzalezg@gmail.com--
Date : 2025-12-25 Size : 1kb User : actinio
[matlab] DSP1 DL : 0: 1、观察采样引起的混叠。 2、判别离散时间系统的时不变性。 3、利用卷积计算信号通过FIR滤波器的输出，并观察输出信号的input-on暂态、input-off暂态和稳态阶段。 -One to observe the sampling due to aliasing. 2, determine the time invariant discrete-time systems. 3, the use of convolution calculation of the signal through the FIR filter output, and observe the output signal of the input-on transient, input-off transient and steady-state phase.
Date : 2025-12-25 Size : 14kb User : shen yuan
[matlab] aliasing_demo_audible DL : 0: 信号处理，音频处理系统中，演示脚本的声响混叠使用正弦信号-Demonstration Script of Audible Aliasing Using Sinusoidal Signals
Date : 2025-12-25 Size : 159kb User : 小薇
[matlab] backproj DL : 0: BACKPROJ uses the filtered or unfiltered backprojection algorithm to perform the inverse Radon transform. The filter is designed directly in the frequency domain and then multiplied by the FFT of the projections. The projections are zero-padded to a power of 2 before filtering to prevent spatial domain aliasing and to speed up the FFT.-BACKPROJ uses the filtered or unfiltered backprojection algorithm to perform the inverse Radon transform. The filter is designed directly in the frequency domain and then multiplied by the FFT of the projections. The projections are zero-padded to a power of 2 before filtering to prevent spatial domain aliasing and to speed up the FFT.
Date : 2025-12-25 Size : 4kb User : Jane
[matlab] myaa DL : 0: Add myaa.m to your path and enjoy anti-aliased professionally looking graphics in Matlab at any time. Myaa works with any kind of graphic (3-D, plots, scatterplots, ...) and even adds anti-aliasing to text, ui controls and grids. Myaa is ideal for complex, cluttered and saturated plots.-Add myaa.m to your path and enjoy anti-aliased professionally looking graphics in Matlab at any time. Myaa works with any kind of graphic (3-D, plots, scatterplots, ...) and even adds anti-aliasing to text, ui controls and grids. Myaa is ideal for complex, cluttered and saturated plots.
Date : 2025-12-25 Size : 268kb User : changazi
[matlab] image-aliasing DL : 0: image aliasing matlab code
Date : 2025-12-25 Size : 426kb User : venkatrajan
[matlab] aliasing DL : 0: Matlab code showing the effects of aliasing
Date : 2025-12-25 Size : 9kb User : jico
[matlab] aliasing DL : 0: show an aliasing in sine wave by L. Braile
Date : 2025-12-25 Size : 1kb User : chan
[matlab] The-effect-of-aliasing DL : 0: MATLAB中的混叠的效果代码，其中包含：时域的混叠效果；频域的混叠效果-The effect of aliasing the MATLAB code, which includes: a time domain aliasing effects frequency domain aliasing effects
Date : 2025-12-25 Size : 1kb User : 黄振
[matlab] aliasing DL : 0: the phenomenon of aliasing in image shrinking applications using matlab
Date : 2025-12-25 Size : 23kb User : Redwan

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