analog signal processing

MATLAB Original Teaching Video Tour: Detailed Explanation of Fast Fourier Transform FFT (Case Study)

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MATLAB Teaching Video, Signal Processing and System Analysis:This video is approximately 65 minutes long and demonstrates in detail the methods and steps for plotting the time-domain signal MATLAB FFT half-spectrum & full-spectrum through four selected case studies; it deeply analyzes the relationship between the amplitude and phase of the FFT spectrum and the corresponding time-domain … Read more

Application of Linear Equation Solving Based on MATLAB-GUI

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Application of linear equation solving based on MATLAB-GUI. This includes a 14-page Word document. The GUI implements direct methods, Jacobi iteration method, and Gauss-Seidel iteration method for solving linear equations. The program has been debugged and can be run directly. Note: To download the source code, please click the end of the article“Read the original … Read more

GUI for Generating and Analyzing One-Dimensional and Two-Dimensional Random Rough Surfaces Based on MATLAB

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A GUI for generating and analyzing one-dimensional and two-dimensional random rough surfaces based on MATLAB. It uses Gaussian HDF and Gaussian or exponential ACF. Input parameters include surface points, surface length, root mean square height, and correlation length. Output: surface plot, root mean square height, and correlation length. The program has been debugged and can … Read more

Line-by-Line Code Breakdown: Practical Foundations of Programming, Signal Processing, and AI

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Line-by-Line Code Breakdown: Practical Foundations of Programming, Signal Processing, and AI

Breaking the Fragmentation, Reconstructing the Integrated Learning System Currently, there exists a fourfold fragmentation in programming, signal processing, and AI books: theory and practice, modules and systems, knowledge and scenarios, tools and engineering. This book is project-driven, using problems to illustrate theories, analyzing code line by line, and integrating multiple technologies through comprehensive projects to … Read more

In-Depth Analysis of Key Debouncing Techniques in Embedded Development

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In-Depth Analysis of Key Debouncing Techniques in Embedded Development

Modern embedded devices are highly advanced, with embedded systems interacting with external human-machine interfaces. Currently, touch screens are popular, and even in the wave of AI, compact embedded devices can directly accept voice input for AI recognition, allowing a simple phrase like “Old Wu, please help me with xxx” to suffice. However, in scenarios requiring … Read more

Sound Analysis: Time and Frequency Analysis of Sound Signals Based on Matlab

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Sound Analysis: Time and Frequency Analysis of Sound Signals Based on Matlab

Abstract The analysis of sound signals has wide applications in fields such as speech recognition, music processing, and acoustic research. This article implements time-domain and frequency-domain analysis of sound signals based on Matlab, along with statistical analysis of the signals. By processing a segment of audio signal, this article demonstrates how to extract and analyze … Read more

RF Data Converters: Digital to Analog (5) RF-DAC Working Principles

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RF Data Converters: Digital to Analog (5) RF-DAC Working Principles

Mr. Big Cat says: Translation of Chapter 11 from the compilation RFSoC-Book, details of this book can be found in the first article of this series. “An open-source masterpiece, ‘Software Defined Radio Based on Zynq UltraScale+ RFSoC’” Mr. Big Cat, WeChat public account: Mr. Big Cat’s Bookshelf, an open-source masterpiece, ‘Software Defined Radio Based on … Read more

Characteristics of Ultrasonic Sensors Compared to Other Types of Sensors

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Characteristics of Ultrasonic Sensors Compared to Other Types of Sensors

Compared to other types of sensors, ultrasonic sensors have unique advantages, but they also have some limitations. These characteristics make them widely used in various fields, from industrial automation to medical diagnostics, as well as smart homes and environmental monitoring. Different Types of Ultrasonic Sensors Source: (Naserabadi & Sodagar, 2022)[13] This figure shows different types … Read more

Analog vs Digital Load Cells: Analyzing Differences and Application Scenarios + Video Discussion

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Analog vs Digital Load Cells: Analyzing Differences and Application Scenarios + Video Discussion

In industrial weighing, logistics warehousing, food processing, and other fields, load cells serve as core detection components, directly determining the accuracy, stability, and application flexibility of weight data. Currently, load cells on the market are mainly divided into two categories: analog and digital. There are significant differences between the two in terms of signal processing, … Read more

The ‘Left Hand and Right Hand’ of PLC: Digital and Analog Signals, Don’t Get Confused

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The 'Left Hand and Right Hand' of PLC: Digital and Analog Signals, Don't Get Confused

In the world of PLCs, all signals can be divided into two main categories: Digital and Analog. They are the “left hand and right hand” of PLCs in perceiving and controlling the external world, and understanding the difference between the two is crucial. 1. Digital: The Black-and-White ‘Switch’ Signal Core Characteristics: There are only two … Read more