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Development of MATLAB-Based Digital Signal Processing Teaching Module with Graphical User Interface Environment for Nigerian University

机译:尼日利亚大学基于图形用户界面环境的基于MATLAB的数字信号处理教学模块的开发

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The development of a teaching aid module for digital Signal processing (DSP) in Nigeria Universities was undertaken to address the problem associated with non-availability instructional module. This paper annexes the potential of Peripheral Interface Controllers (PICs) with MATLAB resources to develop a PIC-based system with graphic user interface environment suitable for data acquisition and signal processing. The module accepts data from three different sources: real time acquisition, pre-recorded data acquisition and software-generated data. The developed system is able to perform analysis on both stationary and non-stationary signals using Fast Fourier Transform (FFT) and Short Time Fourier Transform (STFT). The STFT-based approach provides Improved Joint Time Frequency Analysis (IJTFA) of signals. A graphical user interface (GUI) was developed to create interactive environment for understanding the operations of digital signal processing. The developed system not only provides interactive platform for data acquisition, spectral analysis and filter design but also makes it avoidable to students in Nigeria University.
机译:尼日利亚大学开发了一种用于数字信号处理(DSP)的教学辅助模块,以解决与不可用教学模块相关的问题。本文利用MATLAB资源来补充外围接口控制器(PIC)的潜力,以开发一个基于PIC的系统,该系统具有适用于数据采集和信号处理的图形用户界面环境。该模块接受来自三个不同来源的数据:实时采集,预先记录的数据采集和软件生成的数据。开发的系统能够使用快速傅立叶变换(FFT)和短时傅立叶变换(STFT)对固定和非固定信号进行分析。基于STFT的方法可提供改进的信号联合时频分析(IJTFA)。开发了图形用户界面(GUI)来创建交互式环境,以了解数字信号处理的操作。开发的系统不仅为数据采集,光谱分析和滤波器设计提供了交互式平台,而且使得尼日利亚大学的学生可以避免使用它。

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