An Innovative Digital Signal Processing Laboratory for Physical Systems

数字信号处理（DSP）是GMI电气工程课程的重要组成部分。40%的EE学生选择了DSP选修课。然而，DSP课程目前还没有实验室部分。一个实际的、动手操作的实验室对教学应用DSP至关重要，并为课堂主题提供物理可信度。我们建议在GMI建立一个DSP实验室。该实验室包括数字信号处理的硬件和软件。学生使用德州仪器TMS320C30通用数字信号处理器和惠普HP35665A动态信号分析仪进行七个实验。每个实验室都以DSP在物理系统中的重要应用为特色。利用Hypersignal rde软件进行滤波器的设计、仿真和实时DSP算法的实现。实验包括对采样和量化对采样信号信噪比影响的基础研究。学生研究实际问题，如滤波器结构对数值稳定性的影响。实验还将生物医学、音频和视频信号纳入滤波器设计、系统建模和二维信号分析的研究中。本提案中要求的设备主要影响GMI注册DSP课程的本科生。此外，这些设备将用于本科毕业设计项目和社区外展项目，包括“21世纪女性的工程和科学”、美国童子军“探险家”项目、“发现GMI”日以及其他促进工程和科学的活动。

Digital signal processing (DSP) is an important component of the GMI electrical engineering curriculum. An elective DSP course is selected by 40% of the EE students. However, the DSP curriculum does not currently have a laboratory component. A practical, hands-on laboratory is critical for teaching applied DSP and lends a physical credibility to classroom topics. We propose that a DSP laboratory be established at GMI. The laboratory includes hardware and software for digital signal processing. Students perform seven laboratory experiments using a Texas Instruments TMS320C30 general purpose digital signal processor and the Hewlett-Packard HP35665A dynamic signal analyzer. Each laboratory features an important application of DSP to physical systems. Hypersignal R DE software is used for filter design, simulation and implementation of real-time DSP algorithms. The experiments include fundamental investigations of the effects of sampling and quantization on the signal to noise ratio of a sampled signal. Students investigate practical issues such as the effect of filter structure on numerical stability. The experiments also incorporate biomedical, audio and video signals in investigations of filter design, system modeling and two-dimensional signal analysis. Equipment requested in this proposal primarily impacts undergraduate students at GMI enrolled in the DSP course. Also, the equipment will be used in the undergraduate capstone design project and community outreach programs including "Engineering and Science for the 21st Century Woman", the Boy Scouts of America "Explorers" program, "Discover GMI" days, and other activities that promote engineering and sciences.