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本文详述了遗传算法作为一种随机搜索算法在控制器设计参数优化中的应用。从遗传算法基本原理入手,结合工程实际,论述了遗传算法在PID控制器设计、鲁棒控制器设计、最优控制、系统参数辨识、模糊逻辑控制系统和神经网络控制中的应用成果。讨论了影响遗传算法的因素,并提出了改进的策略。 相似文献
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The statistics of the matched filter output are examined for the case of a nonfluctuating target in K-type clutter. The resulting "homodyned-K" backscatter model is a generalization of the classic Rayleigh-Rice model and has applications in radar, sonar, optics, and ultrasonic medical imaging. This paper presents exact and asymptotic equations for the probability density function, survival function, moments, and parameter estimation. The exact equations are expressed as infinite series. Also provided are proof of the series' convergence and guidance for their numerical computation. Examples illustrating the model's application to radar and sonar are presented using electromagnetic and acoustic backscatter data 相似文献
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边界元即边界积分方程方法,可方便地用来解板弯曲问题。本文在局部极坐标下建立公式,采用具有较高协调性的函数插值方案,利用外点技术完全避免边界奇异积分。列举的一系列算例表明该方法输入数据少、机时省、精度高,是板结构强度分析的一个有效方法。 相似文献
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