Software

Sshaper 1.1

This terminal based MATLAB program is a computational tool for shaping the sensitivity function in robust control. The theory behind the program is described in technical report Sensitivity shaping with degree constraint by nonlinear least-squares optimization and references therein. We have written a Sshaper User's Manual. This work is done by Ryozo Nagamune and myself, to whom also any questions can be addressed.

Zip-compressed files Sshaper1.1.zip (August 27, 2004)

Scalar Nevanlinna-Pick Interpolation with Degree Constraint including Derivatives

This scalar version of the solver is jointly developed with Ryozo Nagamune. The algorithm is described in An extension of a Nevanlinna-Pick solver to cases including derivative constraints by me, and Ryozo Nagamune.

Unix version npdcsolver.tar.gz
Windows version npdcsolver.zip

To unpack the Unix version use "gunzip npdcsolver.tar.gz" and "tar xvf npdcsolver.tar" or corresponding commands. For the Windows version use for instance WinZip.

Matrix-valued Nevanlinna-Pick Interpolation with Degree Constraint including Derivatives

This version is capable of dealing with matrix-valued interpolation. It is jointly developed with Anders Lindquist and Ryozo Nagamune for solving a degree constrained version of Nevanlinna-Pick interpolation. The algorithm is described in Matrix-valued Nevanlinna-Pick interpolation with complexity constraint: An optimization approach .

Unix version NPDCsolver.tar.gz
Windows version NPDCsolver.zip

To unpack the Unix version use "gunzip NPDCsolver.tar.gz" and "tar xvf NPDCsolver.tar" or corresponding commands. For the Windows version use for instance WinZip.

Note that this code uses the old LMI toolbox in MATLAB for computing a design to compare with!

If you experience any problems with the code or have any questions concerning it, do not hestitate to contact Anders Blomqvist.

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