[导读]在信号处理领域，MATLAB的FFT(快速傅里叶变换)是分析频域特性的核心工具。然而，实际应用中常遇到频谱泄漏、栅栏效应等异常现象，导致频谱分析结果失真。本文将从频谱泄漏的成因、栅栏效应的原理出发，结合MATLAB代码实例，系统阐述两种效应的解决 ...

[导读]在生物医学信号处理领域，MATLAB凭借其强大的快速傅里叶变换(FFT)功能，成为分析心电信号(ECG)和脑电信号(EEG)频域特性的核心工具。通过FFT算法，研究者能够将时域信号转换为频域分布，精准识别信号中的关键频率成分，为疾病诊断和生理机制研究提供 ...

其中FFT 的分辨率完全取决于采样时间长度 ，和采样率 ，与零填充无关。 频率分辨率 Δf 并没有变： 依旧是 ，因为“有效采样时长”没变。 只是增加了插值点：频谱曲线变得平滑，看起来像“更细”；实质是对原本 FFT 结果做了sinc 内插**。 方便峰值估计：QIFFT ...

MATLAB offers advanced features and strong industry adoption but comes at a higher cost. Scilab provides a free, open-source alternative with solid numerical computing tools. The choice depends on the ...

Accurate frequency estimation in a wideband digital receiver using the FFT algorithm encounters challenges, such as spectral leakage resulting from the FFT’s assumption of signal periodicity.

Leading by example might seem obvious, but why do so many bosses fail to walk the talk? Many years ago, a CEO asked me to conduct a leadership training seminar on decision-making for his organization.

When evaluating the dynamic performance of precision analog-to-digital converters (ADCs) using fast Fourier transform (FFT) analysis, coherent sampling typically is used to accurately measure the ...

This repository contains two examples accompanying the series of blog posts titled Unifying MATLAB and Simulink: A User Story on Guy on Simulink. The workflow illustrated in this example ...

The fast Fourier Transform (FFT), added to an oscilloscope or digitizer, permits measuring the frequency domain spectrum of the acquired signals. This provides a different and usually helpful ...

Abstract: The cognitive load of numerically complex concepts such as FFT in engineering discipline could be a challenge in comprehension and interest or motivation for learning the same. The proposed ...

bvadorno changed the title Implement multirobot example example using native Matlab methods to highlight the new ClassicQPController class. Implement multirobot example example using native Matlab ...

DynaSim is an open-source MATLAB/GNU Octave toolbox for rapid prototyping of neural models and batch simulation management. It is designed to speed up and simplify the process of generating, sharing, ...