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Target tracking is one of the most important applications for wireless sensor networks (WSNs). It is usually assumed that the knowledge of the sensor nodes' position is known precisely. However, practically nodes are randomly deployed without prior knowledge about their own positions. In this situation, simultaneous localization and tracking (SLAT) is necessary and is receiving more and more research...
In this paper, in order to understand the fiber Bragg grating (FBG) sensor's temperature sensing properties with different coating materials and packaging materials at low temperature, and choose a FBG sensor for engineering application, an experimental platform is designed at first, the temperature sensing performance of five different type of FBG sensors at low temperature (77K–296K) is studied,...
We consider the linearly constrained separable convex minimization model, whose objective function is the sum of three convex functions without coupled variables. The generalized alternating direction method of multipliers (ADMM) is a very effective approach for solving this kind of problem. Recently, the literature of ADMM focus on three or more blocks. [14] has shown a global linear convergence...
In order to meet the need of source authentication in a wireless sensor network composed of IRIS nodes, this paper presents the implementation and performance analysis of the elliptic curve digital signature algorithm (ECDSA) on IRIS nodes. We choose 7 kinds of optimization algorithms for ECDSA to test and compare their performance further. By turning these optimizations on or off, we compare their...
In order to achieve a reasonable evaluation of direct trust, this paper proposes a trust evaluation algorithm based on the domain, using the technique of constructing a hierarchical tree of trust evaluation subjectively. The algorithm adopts the rules of series and parallel operations in the D-S theory, acquires the results of the recommended trust problem of a single path by quadrature methods and...
In order to promote the high frequency performance of open architecture CNC system, an embedded CNC controller combining FPGA (Field Programmable Gate Array) technology and real-time Ethernet communication bus was designed, which consisted of an embedded ARM (Advanced RISC Machines) processor and an FPGA. An open source CNC software running under Linux operating system was customized to accommodate...
For the problem of the high power LED heat radiator cooling slowly and having a higher temperature, it will affect the service life of the LED. Studying thermal characteristics of the different power of fin-tubular radiator temperature field distribution and heat flux vector distribution of lamps and lanterns. According to heat transfer knowledge, we make a qualitative analysis of the heat dissipation...
The research with respect to Particle Swarm Optimization is concentrated in improving their performance on avoiding local maxima. Since standard Particle Swarm Optimization does not perform well in many cases, we propose double chaotic particle swarm optimization algorithm based on logistic map. This chaotic movement has good randomness and ergodic statistics property of chaos sequence. We propose...
Robust pole assignment problem for linear systems with uncertainty is studied in this paper. The proposed gradient flow optimization algorithm is used to solve the Sylvester equations, in order that the close-loop control systems have the desired robust poles, namely, the uniformly asymptotically stable performance. The feedback gain matrix of the synthesized system can be derived from the gradient...
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