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New ADCP(Acoustic Doppler current profiler) can estimate surface wave based on current measurement. Now existing background correction algorithm only considers current amplitude, TRDI ADCP commercial software WAVESMON suggest if current amplitude is greater than 0.75m/s, wave estimation should be corrected for background current. The research shows that when background exists, background current amplitude,...
New ADCP(Acoustic Doppler current profiler) can estimate surface wave based on current measurement. Now existing tilt correction algorithm only considers attitude angle pitch and roll, for example, TRDI wave processing software WAVESMON suggest if attitude angle pitch, roll is greater than 10 degrees, wave estimation should be tilt corrected. The author's previous research shows that both attitude...
High range resolution profile(HRRP) has been a hotspot in the field of radar target recognition. But there are still many problems. This paper focuses on one-dimensional range target recognition based on an improved BP algorithm. There are a large number of samples used to learn the distribution characteristics of radar targets. The BP neural network algorithm is applied to match the template. Though...
The energy-saving gap of building is serious. In practical matters of building engineering, the input process of time-varying system can be divided into several stages. In every stage, the system has its own rules and features. At present, various evaluation methods are slow in solving this matter. Cascade neural network can properly describe the growth continuity of each part of building energy-saving...
Remote sensing classification is the core of converting satellite image to useful geographic information. Many methods have been proposed for improving classification accuracy, however, the results are always dissatisfied. The reason is that there is serious spectral overlay phenomenon between classes which decrease the classification accuracy. This paper introduced an evidential reasoning "soft"...
The integrators are facing the problems of so many decision attributes and few data samples for decision-making analysis when evaluating the partners of collaboration and innovation in complex products and systems(CoPS). Firstly, this paper created a trust evaluation model of collaborative partners in CoPS. Secondly, followed by the application of RS attribute reduction as a data pre-processing removes...
To avoid the BP (Back-Propagation) Network's disadvantages of low training speed, prone to trapping in a local optimum and poor capability of global search, this paper establishes the model of key based on generic algorithm with the research on the key shape, by optimizing the initialized weights and threshold of neural network with GA. After the test of the program complied by MATLAB language and...
To resolve the army's problems in training and teaching about the new equipment, a scheme of communication network simulation system was introduced after making a study of the internal constitution and command flow of the rocket battalion's communication network. UML and Rational Rose were applied to make the requirement analysis and overall design .With the help of the static views and activity views,...
The informational process of our country is being improved by immense amounts of computer professionals at all levels. Meanwhile, the deficiencies exist in teaching model for undergraduate computing education, so the current model must be innovated to be more helpful to the training of personnel. It is the goal of our endeavor that computer teaching model meets the demands of the professional development.
Based on identification and prediction ability of neural networks for nonlinear systems, an improved BP network was adopted to predict the seismic responses of the bridge structures. First, a multi-player BP networks based on Levenberg-Marquardt algorithm was formed. Then, the improved neural network was trained by the imitated seismic responses of the first 4 seconds which were obtained from artificial...
Facing the problems of so many decision attributes and few data samples for decision-making analysis when the integrators in complex products and systems evaluate the partners of collaboration and innovation, this paper creates a trust evaluation model of collaborative partners in CoPS based on rough set and (RS) Support Vector Machines (SVM). In this paper, firstly, trust evaluation system about...
For the system of vibration faults diagnosis of hydraulic turbines, the deficiency of generalization ability using single BP Network is analyzed and a radial basis function (RBF) neural network algorithm based on particle swarm optimization (PSO) is presented. It has advantage of being easy to realize, simple operation and profound intelligence background. The parameters and connection weight are...
LIDAR (LIght Detection And Ranging) is a powerful remote sensing technology for the acquisition of terrain surface. The LIDAR system not only generates the 3D points cloud with irregular spacing, but also detects the laser impulse reflection data. The algorithms used for the LIDAR data are mostly used to deal with the 3D points cloud, produce the digital terrain model (DTM) and detect the objects,...
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