Filter methods realize a projection from superposed quantum state onto target state, which can be efficient if two states have sufficient overlap. Here we propose Gaussian filter (QGF) with the operator being function of system Hamiltonian. A hybrid quantum-classical algorithm feasible on near-term computers is developed, implements as linear combination Hamiltonian evolution at various times. ...

This paper discusses the invariance of the second-order modes of 2-D separable denominator digital filters under frequency transformation. This paper first derives a state-space description for 2-D digital filters obtained by 2-D frequency transformation and then represents the controllability Gramians and the observability Gramians of the transformed 2-D digital filters. This description prove...

This paper presents a simple model predictive control (MPC) approach to control the power injection system (PIS) for renewable energy applications. A DC voltage source and a single-phase inverter that is connected to the grid by an LCL filter form the PIS. Grid voltage is considered a disturbance for the system. For eliminating this disturbance, a modified model is proposed. It is usual to ...