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Existing WiFi fingerprinting-based Indoor Positioning System (IPS) suffers from two major bottlenecks. One is that the offline site survey process is extremely time-consuming and labor-intensive. The other is that the offline calibrated received signal strength (RSS) fingerprint database is vulnerable to environmental dynamics. To address these issues comprehensively, in this paper, we propose WinIPS,...
With the remote sense technologies applied into more and more fields, the existing methods of remote sense data fusion, like HSV, PCA, HIS transform, can not meet the demands of all kinds of situations occurring in different fields. This paper presents a new method of Multi-spectral remote sensing images information fusion in order to provide more choices for people. The new method based on k-th central...
This paper deals with the mean square stabilization problem for multi-input networked systems via single packet or multiple packets transmission, where the unreliability of input channels is modeled by a multiplicative white noise. For the single packet case, the critical value (lower bound) of mean square capacity for ensuring mean square stabilization is given by adopting the bisection technique...
Online shopping mall is emerging as a main marketing channel. The Web-based decision support system (DSS) in Web 2.0 is constructed to facilitate customers to share profiles and comments. Recommendation system is designed to cluster the customers and products respectively, and produce some association rules between customers and products. These have enabled the system to trigger consumer buying behavior...
This paper proposes a novel synthesis approach to dynamic output feedback robust model predictive control for systems with both polytopic description and bounded disturbance. The notion of quadratic boundedness is utilized to characterize the stability properties of the augmented closed-loop system. An error signal is defined, which is a linear combination of the true state, controller state and output...
This paper investigates the optimality of the logarithmic quantizer on stabilization of linear systems. It is shown that a finite-level logarithmic quantizer can asymptotically achieve the well-known minimum average data rate for stabilizing an unstable MIMO linear discrete-time system. A time-sharing protocol is proposed to allocate bits to subsystems, each associated with an unstable eigenvalue...
This paper investigates optimal reset law design of reset control systems with fixed reset time instants. Firstly, closed-loop reset control system is changed to discrete linear control system with reset values as control input. Then the optimal reset law design problems are transferred to standard linear quadratic regulation problems and the optimal reset laws are then obtained by solving some Riccati...
This paper addresses the quantized stabilization problem for single-input Markov jump systems. Mode-dependent and mode-independent quadratic control Lyapunov functions based on the availability of mode information at controller/quantizer are considered for the quantized feedback. Similar to the linear time-invariant case, it is shown that a mode-dependent (respectively, mode-independent) logarithmic...
This paper considers robust model predictive control for systems with polytopic uncertainty and bounded disturbance, where the system state is unmeasurable, and the model at the current sampling time is an exact combination of the vertices of the polytope. A parameter-dependent dynamic output feedback is used for this problem. At each sampling time, the optimization problems can be solved via LMI...
We consider the problem of state estimation of a discrete time process over an unreliable communication network. Most previous work in literature focus on either quantization effect or packet drops or delays, with a few work considering those uncertainties simultaneously. In this paper, we first present two quantized filter design methods based on a logarithmic quantizer. The first method characterizes...
This paper is concerned with consensus control of undirected networks of discrete time first order agents under quantized communication. A distributed protocol is proposed based on dynamic encoding and decoding with finite level uniform quantizers. It is shown that under the protocol designed, for a connected network, average-consensus can be achieved with an exponential convergence rate based on...
The paper discusses the H∞ preview control problem. We apply simple tools such as completion of square to solve the problem. The sufficient and necessary condition under which the finite-horizon problem is solvable is provided and is actually the inertia condition reflecting the aftereffect from the disturbance. Different from existing results, the proposed controller is given by a Riccati equation...
This paper is concerned with leader-follower finite-time consensus control of multi-agent networks with input disturbances. Terminal sliding mode control scheme is used to design the distributed control law. A new terminal sliding mode surface is proposed to guarantee finite-time consensus under fixed topology, with the common assumption that the position and the velocity of the active leader is known...
This paper considers the problem of robust control for a class of uncertain time-varying dynamical systems with real time-varying parameter uncertainity. Interest is focused on the design of linear dynamic output feedback control and two problems are addressed. The first one is the robust stabilization and the other is the problem of robust H?? like performance. A technique is proposed for designing...
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