On computing the spectral radius of the Hankel plus Toeplitz operator

The square root of the spectral radius of the Hankel plus Toeplitz operator has been shown to be the achievable performance of the mixed-sensitivity H/sup infinity / design. The computation of the spectral radius is the bottleneck in the synthesis of the H/sup infinity / controller. In this paper, the spectral properties of the Hankel plus Toeplitz operator are investigated. A finite procedure for computing the spectral radius of the Hankel plus Toeplitz operator is proposed. >

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