@article{Lalonde1993LeastsquaresMO,
title={Least-squares model order reduction enhancements},
author={Rick J. Lalonde and Tom T. Hartley and J. Alexis De Abreu Garcia},
journal={IEEE Trans. Industrial Electronics},
year={1993},
volume={40},
pages={533-541}
}

-Two enhancements to the least-squares (LS) discrete time model order reduction (MOR) method are presented scaling and frequency response matching. Scaling generally improves the low frequency fit between the reduced order model (ROM) and the original model. For exact gains at specific frequencies, optional frequency response constraints can easily be added to the LS MOR method. An example is presented that illustrates these enhancements. The emmple model is reduced with the Hankel norm (HN… CONTINUE READING