Interdisciplinary cross is the talent needs of modern society. Signals and systems course is opened for mechanical students, is order to cultivate the state engaged in machinery and equipment, machinery fault diagnosis technology, vibration signal testing and other areas of expertise. Some teaching problems are existed in tradition circuit-based prototype, teaching reform and practice are proceeded from teaching reform ideas, adjust teaching content, teaching methods, innovative teaching methods these four aspects.%学科间交叉是现代社会人才需求方向。针对机械类学生开设信号与系统课程，是为了培养从事机械设备状态、机器故障诊断技术、振动信号检测等领域的专门人才。分析传统教学中存在的问题，针对机械专业学生从教学改革思想、调整教学内容，优化教学手段、创新教学方法4个方面进行了教学改革与实践。
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