A new simulation study compares Fourier, wavelet, and direct time-domain fitting methods for analyzing short and non-stationary NMR signals, revealing where each approach excels and how spectrograms ...
This example shows basic gmf_fft usage. It generates a multi-tone cosine signal, runs a 512-point Q15 real FFT, prints a dB-scale spectrum bar chart in the serial ...
本内容遵循CC 4.0 BY-SA版权协议 简介：基于MATLAB的快速傅里叶变换算法程序讲解文档，面向数字信号处理初学者以及需要做频谱分析的工程师，解决如何将时域信号转换为频域并理解幅度与频率 ...
本文深入解析快速傅里叶变换（FFT）的数学原理，涵盖从DFT到Cooley-Tukey蝶形分解的演化过程；介绍Matlab中fft()函数的高效调用与性能优化技巧（如补零、多线程）；分析频谱泄露、加窗处理、混 ...
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