On-Line Undergraduate Laboratories in Signal and Image Processing, Communications, and Controls

亚利桑那州立大学正在全面开发和评估一个基于网络的本科生实验室工具，用于本科生数字信号处理（DSP）、通信、图像处理和控制领域。我们已经开发并成功测试了一个用于本科DSP课程的原型实验室工具（J-DSP）。这个基于网络的原型支持在线信号处理模拟的能力，并为远程学习和校园本科生提供实验室体验。该工具基于一组新颖的Java小程序，这些小程序支持用户友好的面向对象环境。这个典型的Java软件支持一个模拟环境，使学生能够在任何配备了网络浏览器的计算机平台上建立和执行实验。这项工作提供了实验室原型到其他领域（通信、图像处理和控制）的重要扩展，包括测试地点的评估和传播策略，以及在CCLI项目之后维持开发、传播和评估的计划。原型实验室和提议的扩展可能代表了在远程学习环境中提供在线实验室体验的第一次全面努力。我们预期这个新概念可以扩展到不同教育层次的不同类型的科目，例如，从高中物理到社区大学科学实验室和大学水平工程科目的不同层次和主题的在线实验。J-DSP原型机及其对“热门”系统主题的扩展，如通信、图像处理和高级控制，将使新的网络课程开发人员能够无缝地将在线实验集成到他们的网络课程内容中。

Engineering - Electrical (55)Arizona State University is fully developing and evaluating a web-based undergraduate laboratory tool in the areas of undergraduate digital signal processing(DSP), communications, image processing and controls. We have already developed and successfully tested a prototype laboratory tool (J-DSP) for use in the undergraduate DSP class. This web-based prototype supports capabilities for online signal processing simulations and provides laboratory experiences to distance learning and on-campus undergraduate students. The tool is based on a collection of novel Java applets that support a user-friendly object oriented environment. This exemplary Java software supports a simulation environment that enables students to establish and execute experiments from any computer platform that is equipped with a web browser.This work provides significant extensions of the laboratory prototype to the other areas (communications, image processing and controls), an assessment and dissemination strategy that includes test sites, and a plan to sustain development, dissemination, and evaluation after the CCLI project. The prototype lab and the proposed extensions represent perhaps the first comprehensive effort to provide on-line lab experiences in distance learning environments. We anticipate that this novel concept can be extended to different types of subjects at different levels of education, e.g., on-line experiments at levels and topics ranging from high-school physics to community college science labs and college-level engineering subjects. The prototype J-DSP along with its proposed extensions to "hot" systems topics such as communications, image processing, and advanced controls will enable new web-course developers to seamlessly integrate online experiments to their web-course content.