| 模糊开-关控制器的结构分析及其在激光凝固疗法中的应用 |
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| 引用本文： | 丁永生,应浩,邵世煌.模糊开-关控制器的结构分析及其在激光凝固疗法中的应用[J].东华大学学报(自然科学版),2000,26(2). |
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| 作者姓名： | 丁永生 应浩 邵世煌 |
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| 作者单位： | 1. 中国纺织大学信息科学与技术学院,上海,200051
2. 美国得克萨斯大学医学院生物医学工程中心,TX77555 |
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| 基金项目： | 国家自然科学基金资助项目(项目号:69874038)，上海曙光计划(99SG20)，国家教育部留学回国人员科研启动基金 |
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| 摘 要： | 提出了一种新颖的时变模糊控制器计算可变开-关信号序列从而达到控制输出要求。模糊开-关控制器在生物医学激光凝固疗法中能有效地解决组织加热的非线性时变特性和810nm二极管激光功率不可调的情况。该模糊控制器的结构被解析地分析并与PD控制器相联系。体外(In vitro)实验结果表明该模糊控制系统在组织温度控制中的优越性能。
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| 关 键 词： | 模糊控制 开-关控制 PD控制 结构分析 激光凝固疗法 |
Structural Analysis of a Fuzzy On-Off Controller with Application to Laser Coagulation |
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| Ding Yongsheng,Ying Hao,Shao Shihuang.Structural Analysis of a Fuzzy On-Off Controller with Application to Laser Coagulation[J].Journal of Donghua University,2000,26(2). |
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| Authors: | Ding Yongsheng Ying Hao Shao Shihuang |
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| Abstract: | A novel time - varying fuzzy controller is presented to compute the variable ON - OFF signal sequence to achieve control requirements. The fuzzy ON - OFF controller can solve effectively the difficulties of the nonlinear time -varying characteristics of tissue heating and the unadjustable output power of the 810 nm diode laser during laser coagulation in biomedical applications. The structure of the fuzzy controller is analytically analyzed and related to the PD controller . In vitro experimental results show the superior performance of the fuzzy control system in the control of tissue temperature. |
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| Keywords: | fuzzy control on - off control PD control structural analysis laser coagulation |
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