A New Frequency Response Plot of Linear SISO Systems


The projection of the Nyquist diagram of a SISO linear system onto the Riemann sphere is recently used to represent the frequency responses. However, it is difficult to display the Riemann plot clearly in a plane since the Riemann sphere is a three dimensional object. To address this problem, the map projection of Riemann plot is introduced to obtain a two dimensional plot. The new frequency response plot plays the same role in modern robust control as Riemann plot, and easy to draw in a plane

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@article{Chai2006ANF, title={A New Frequency Response Plot of Linear SISO Systems}, author={Li Chai and Lei Wang and Qian He}, journal={2006 6th World Congress on Intelligent Control and Automation}, year={2006}, volume={1}, pages={704-707} }