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A novel algorithm is proposed for the direction-of-arrival (DOA) estimation of coherently distributed (CD) sources. Based on the symmetric property of the uniform linear array (ULA) geometry, the DOA can be estimated by a one-dimensional peak search without estimating the distribution parameters, where N independent CD sources can be distinguished with a ULA of 2N + 1 elements. Compared with the existing...
A new parameters estimation approach for mixed sources is proposed in this paper, which is under the sparse signal reconstruction framework. By reconstructing of covariance matrix, directions of arrival (DOAs) in the far-field part were estimated with an l1-svd-like method directly. Then the subspace difference method was adopted to obtain the near-field covariance matrix, and the relative DOAs can...
Although there exist numerous literatures on facility layout in manufacturing systems, studies on department layout in hospitals are relatively scarce. In this paper, we proposed a MOEA/D based approach for a hospital department layout problem, where three objectives are simultaneously optimized, namely patient flow cost, the closeness of departments and rearrangement cost. A constraint handling technology...
Research-based learning is an important way of education in college. It is necessary to acquire knowledge and information effectively, and a user-friendly learning support system could guarantee students' efficiency in research-based learning. This paper makes an investigation about students' demands of knowledge and information, and about their demands of learning support system in research-based...
Music was an effective approach to awaken the students' happy emotion and was the key to open the students' heart door. It was helpful for the learner to calm down, relieve the worry and enhance the study efficiency. With this, It was widely applied in all kinds of places. The Web-based course had received people's more and more favors because it provided more study opportunities, the richer the learning...
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