In loop-shaping controller synthesis, you specify the shape of the open-loop response you want, and use a loop-shaping function to compute a controller that approximates that shape.
Most controller designs involve a tradeoff between performance and
robustness against uncertainty. Robust Control Toolbox™ commands for loop-shaping controller design let you
determine the tradeoff that best meets the requirements of your system.
loopsyn lets you adjust
the balance between performance and robustness.
ncfsyn focuses on
robust stability, while
mixsyn focuses on
|Loop shaping controller design with tradeoff between performance and robustness|
|Loop shaping design using Glover-McFarlane method|
|Mixed-sensitivity H∞ synthesis method for robust control loop-shaping design|
|Weighting function with monotonic gain profile|
|Generate Bessel, Butterworth, Chebyshev, or RC filter|
|Plant augmentation for weighted mixed-sensitivity H∞ and H2 loop-shaping design|
Loop shaping is an approach to control design in which you determine a suitable profile for the open-loop system response and design a controller to achieve that shape.
Compute a controller for a MIMO model of an aircraft using
Adjust the balance between performance and robustness to obtain satisfactory responses while
avoiding fragile designs.
Mixed-sensitivity loop shaping combines specifications for both performance and stability into one cost function that penalizes both sensitivity and complementary sensitivity.
ncfsyn to shape the open-loop response while enforcing stability
and maximizing robustness.