A direct coupling coherent quantum observer for an oscillatory quantum plant
Ian R. Petersen · 2017 IEEE Conference on Control Technology and Applications (CCTA) · 2017
A direct coupling coherent observer is constructed for a linear quantum plant which has oscillatory solutions. It is shown that a finite time moving average of the quantum observer output can provide an estimate of the quantum plant output without disturbing this plant signal. By choosing a sufficiently small averaging time and a sufficiently large observer gain, the observer tracking error can be made arbitrarily small.