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This paper proposes a new incremental learning method based on weighted constraints support vector regression, called IL-WCSVR. First, a modified nearest neighbor clustering method is used to partition the whole input space into several sub-clusters. Then, according to the distance distinguish condition, all the samples in sub-cluster are identified to form the candidate support vector set. For each...
This paper aimed to estimate the crown volume by precise 3D laser scan system. Experiment was carried out to scan 13 different trees to get crown points. In the processing 3D laser scan data, crown volume modeling by multi-face would be greater then the actual volume and it would be hard to in modeling depression surface of crown volume points. The paper proposed a method to model crown volume by...
The voltage of single supercapacitor is no more than 1.6 V. So a lot of cells are combined to a bank in order to reach higher voltages which make it possible for a high efficient transformation from the supercapacitor bank. Sometimes hundreds of cells are connected whereas the voltages of the cells differ with others. So proper measure should be taken to detect the voltages of the individual cells...
The EMC design is of vital importance for electronic control modules of high power dc-dc converters to achieve high reliability of fuel cell electric vehicles. This paper focuses on the EMC design of an ARM-based electronic control unit for the high power DC/DC converter. The countermeasures are as diverse as the problems, such as grounding techniques, power lines interference rejection, PCB shielding,...
This paper presents two kinds of models, named ldquotime-domain modelsrdquo and ldquofrequency-domain modelsrdquo. The typical model of the first kind is a ldquotwo branch modelrdquo, which is very similar to many other in literature from the circuital point of view. However the process of identification of its parameters is easier and faster. While the latter one is a model using impedance spectroscopy...
The signal correlation, the key problem in the technology of Synthetic Aperture Microwave Radiometer (SAMR), is analyzed in detail. Firstly, the expression of the microwave signal passing through the front of radiometer is deduced. Secondly, the signal correlation of SAMR is analyzed, with the conclusion that the signal correlation has a strong effect on the array.
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