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- Vijay Gupta, Emmanuel Peters, Tan Miller, Kelvin Blyden
- Interfaces
- 2002

— In this paper, we consider the problem of active sensing using mobile nodes as a sensor network to estimate the state of a dynamic target. We propose a gradient-search-based decentralized algorithm that demonstrates the benefits of distributed sensing. We then examine the task of tracking multiple targets, and address it via a simple extension to our… (More)

- Yih-Fang Huang, Stefan Werner, Jing Huang, Neelabh Kashyap, Vijay Gupta
- IEEE Signal Processing Magazine
- 2012

This article provides a survey on state estimation (SE) in electric power grids and examines the impact on SE of the technological changes being proposed as a part of the smart grid development. Although SE at the transmission level has a long history, further research and development of innovative SE schemes, including those for distribution systems, are… (More)

- Cheng-Zong Bai, Fabio Pasqualetti, Vijay Gupta
- ACC
- 2015

— This work proposes a novel metric to characterize the resilience of stochastic cyber-physical systems to attacks and faults. We consider a single-input single-output plant regulated by a control law based on the estimate of a Kalman filter. We allow for the presence of an attacker able to hijack and replace the control signal. The objective of the… (More)

- Vijay Gupta, Timothy H. Chung, Babak Hassibi, Richard M. Murray
- Automatica
- 2006

In this note we consider the following problem. Suppose a set of sensors is jointly trying to estimate a process. One sensor takes a measurement at every time step and the measurements are then exchanged among all the sensors. What is the sensor schedule that results in the minimum error covariance? We describe a stochastic sensor selection strategy that is… (More)

- Janos Sztipanovits, Xenofon D. Koutsoukos, +6 authors Shige Wang
- Proceedings of the IEEE
- 2012

This paper focuses on the design phase of the system lifecycle and proposes a passivity-based approach to decouple system stability from cyber timing uncertainties. ABSTRACT | System integration is the elephant in the china store of large-scale cyber–physical system (CPS) design. It would be hard to find any other technology that is more under-valued… (More)

- Vijay Gupta, Babak Hassibi, Richard M. Murray
- Systems & Control Letters
- 2007

We examine two special cases of the problem of optimal Linear Quadratic Gaussian control of a system whose state is being measured by sensors that communicate with the controller over packet-dropping links. We pose the problem as an information transmission problem. Using a separation principle, we decompose the problem into a standard LQR state-feedback… (More)

— This paper deals with the design of control systems over lossy networks. A network is assumed to exist between the sensor and the controller and between the latter and the actuator. Packets are dropped according to a Bernoulli independent process, with γ and µ being the probabilities of losing an observation packet and a control packet respectively, at… (More)

In this paper, we consider the scenario where many sensors cooperate to estimate a process. Only one sensor can take a measurement at any time step. We wish to come up with optimal sensor scheduling algorithms. The problem is motivated by the use of sonar range-finders used by the vehicles on the Caltech Multi-Vehicle Wireless Testbed. We see that this… (More)

- Daniel Breaz, Vijay Gupta
- 2008

We consider the classes Mβ i and Nβ i of the analytic functions and two general integral operators. We prove some properties for these operators on these classes.