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The accurate acquisition of road traffic states is the most important basis in the Intelligent Transportation Systems. Though the technology for collectting road traffic states information has been developed greatly, the data problems such as data invalidation also exist and have not been effectively settled. So the acquisition method of reference sequences of road traffic running characteristics...
A data-driven output tracking controller design method is proposed under the assumption the model of the plant is unavailable. For a class of discrete-time nonlinear plants satisfying some assumptions, first, an approximate solution of tracking equations is obtained from the state trajectory under a particular condition. Then, based on the approximate solution of the tracking equations, the state...
Differential evolution algorithms are extremely effective in solving the single global optimization problems, but no DE variants perform competitively in solving multimodal optimization. In this paper, a differential evolution algorithm with dynamic niche radius strategy (DNRDE) is proposed, for multimodal optimization. In DNRDE, a new two-stage annealing schedule is designed to making the algorithm...
This paper proposes three practical vehicle speed estimation methods by a single multifunction magnetic sensor. Compared with traditional methods, this algorithm is simple and convenient to be realized. The multifunction magnetic sensor is described and introduced in this work. Next, a vehicle detection algorithm with a linear time complexity is put forward. Through setting two windows and scanning...
This paper discusses the influence factors of detector spacing optimization. Through the corresponding mathematical conversion, it gets the model parameters which influence the result of detector spacing optimization. IDF (Information Degree Function) is proposed to describe the spatial distribution characteristics of traffic information. Then, this paper gives the calibration method of the model...
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