Design of signal distortion measurement device based on MSP430F149

Jie Wang; Huijun Xiao; Jianqing Huang

doi:10.1117/12.2646835

7 September 2022 Design of signal distortion measurement device based on MSP430F149

Jie Wang, Huijun Xiao, Jianqing Huang

Proceedings Volume 12329, Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022); 123293N (2022) https://doi.org/10.1117/12.2646835
Event: Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022), 2022, Changsha, China

Abstract

With the development of electronic technology, the study of signal distortion is particularly important. For example, if harmonic distortion is produced, it will make the multimedia audio lose its original timbre and even appear harsh sound. This design is a signal distortion detection device with MSP430F149 MCU as the core, which can complete signal processing, signal acquisition, and thus calculate the signal distortion. The overall design circuit consists of filter circuit, voltage lifting module, voltage following module, signal acquisition module, MCU and signal display module. MSP430F149 MCU controls the signal acquisition and storage, and the LCD1602 display shows the signal distortion measurement results according to the calculation formula written in the program code. In addition, the design utilizes the Fast Fourier Transform (FFT) algorithm, which not only ensures the measurement accuracy, but also greatly improves the speed of spectrum analysis.

Citation Download Citation

Jie Wang, Huijun Xiao, and Jianqing Huang "Design of signal distortion measurement device based on MSP430F149", Proc. SPIE 12329, Third International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2022), 123293N (7 September 2022); https://doi.org/10.1117/12.2646835

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