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l/sub 1/-optimality of feedback control systems: the SISO discrete-time case

机译:l / sub 1 /反馈控制系统的最优性:SISO离散时间情况

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摘要

Controllers that optimally reject a class of disturbances are considered. The problem of determining when a stabilizing control is l/sub 1/-optimal for a given plant is studied for some stable weighting function. This problem belongs to the class of inverse problems in optimal control introduced by Kalman. It is shown that for a given plant, the set of all the H/sub infinity /-optimal controllers (obtained by considering all stable weighting functions with no zeros on the unit circle) is actually contained in the corresponding set of l/sub 1/-optimal controllers. It is also demonstrated that an l/sub 1/-optimal controller, unlike an H/sub infinity /-optimal controller, can remain l/sub 1/-optimal for the same plant for a wide range of nontrivially different weighting functions.
机译:考虑最佳地拒绝一类干扰的控制器。对于某个稳定的加权函数,研究了确定给定植物的稳定控制何时为1 / sub 1 /最优的问题。该问题属于Kalman提出的最优控制中的逆问题类别。结果表明,对于给定的工厂,所有H / sub无穷大/-最优控制器的集合(通过考虑所有稳定的加权函数获得,单位圆上没有零)实际上包含在l / sub 1的对应集合中/最佳控制器。还证明了,与H / sub无穷大/-最优控制器不同,l / sub 1 /最优控制器对于相同的植物,可以在各种非平凡的加权函数中保持1 / sub 1 /最优控制器。

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