This project uses Arduino and four dot matrix screens to realize the visual display of 32-frequency audio (music) spectrum. A lot of space is spent here to explain its principles (it may be slightly difficult for beginners to understand), and a complete schematic diagram and source code are provided. If you like to watch music […]
Tag: spectrum
Classic power spectrum estimation and Matlab simulation
Power spectrum estimation is widely used in the field of analyzing the frequency components of stationary ergodic random signals, and has been successfully applied to practical projects such as radar signal processing and fault diagnosis. This article gives several types of classical power spectrum estimation methods, and analyzes the performance of the classical power spectrum […]
The impact of signal zero padding on the signal spectrum
Article directory Preface 1. What is zero padding? 2. Case 3. Simulation and analysis before zero padding 1. MATLAB source code before zero padding 2. Simulation and result analysis ①、 x n x_n xn? time domain diagram ②、 x n x_n xn? spectrogram 4. Simulation and analysis after zero padding 1. Add 6000 zeros and […]
[Fault Diagnosis] Research on candidate fault frequency optimization and improved envelope spectrum for bearing fault diagnosis (lMatlab code implementation)…
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm […]
[Fault Diagnosis] Research on candidate fault frequency optimization and improved envelope spectrum for bearing fault diagnosis (lMatlab code implementation)
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm […]
Wind power photovoltaic hybrid energy storage power wavelet packet decomposition, fluctuation analysis before and after smoothing, capacity configuration, spectrum analysis, grid-connected power fluctuation analysis (Matlab code implementation)…
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more Matlab complete code and simulation customization content, click Intelligent optimization algorithm […]
Signal spectrum analysis and power spectral density
Signal spectrum analysis and power spectral density are two crucial concepts when we are involved in wireless communications, signal processing, and electronic devices. They help us understand signal characteristics, noise, and frequency distribution to optimize communication systems, design filters, and perform fault diagnosis. This article will initially discuss signal spectrum analysis and power spectral density, […]
Image multifractal spectrum calculation matlab simulation based on WTMM algorithm
Table of Contents 1. Preview of algorithm operation renderings 2.Algorithm running software version 3. Some core programs 4. Overview of algorithm theory 4.1. Overview of WTMM algorithm 4.2. Principle of WTMM algorithm 4.2.1 Two-dimensional wavelet transform 4.2.2 Modular maximum value detection 4.2.3 Multifractal spectrum calculation 5. Algorithm complete program engineering 1. Preview of algorithm operation […]
Acoustic signal processing engineering research (2) — Frequency domain diagram (spectrum)
Introduction: Before starting, let’s first understand the three elements of the acoustic signal (I think that by identifying these three elements, I have determined a single frequency signal). For a single-frequency signal, after determining the amplitude A, frequency f, and initial phase φ (roughly meaning the angle of the trigonometric function corresponding to the first […]
Free-form surface design [angle spectrum diffraction theory, GS algorithm]
1. Background After I published the article Angle Spectrum Theory of Light Wave Transmission [Theory, Examples and Matlab Code], many people have requested the free-form surface thickness matrix, but for some reasons, the matrix cannot be made public. However, I also said in the comment area that the thickness matrix of the free-form surface can […]