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This paper put forward a optimal scheduling method of the wood flexible manufacturing system based on OOTCPN and GASA. The algorithm can adjust the manufacturing units rapidly according to the change of the production order, and reconstruct the production line aiming at optimizing the multi-objective function (the shortest manufacturing cycle and the reconfigurable fee). The triggered sequence set...
Attitude control is investigated for an underactuated rigid spacecraft using arbitrary configuration of the single gimbal control moment gyros (SGCMGs) as actuators. The spacecraft and SGCMGs being taken as an integrated system, dynamics and kinematics are described on the angular momentum level sets. The controllability of the system is analyzed and the advantages of the description of the system...
Degree distribution lies at the heart of design an LT code. It affects the encoding and decoding complexity and error performance of LT code. In this paper, some metrics of well-design LT code such as average degree, release probability, overhead factor is analyzed. It will compare the metrics among robust LT code, sub optimal LT code and SF-LT code. Moreover, it provides some mathematical guideline...
In order to follow the development trend of intelligent high- performance marine vessels, this article designed a trimaran with novel appearance and made a physical model. We carry out still water free rolling test on the trimaran, write system identification procedures based on genetic algorithm, and use the system identification to test data processing and analysis to verify the new triple - hulled...
For a class of nonlinear uncertain systems driven by a linear, neutrally stable exosystem, output regulation problem is considered with the existence of unkown nonlinear function and external disturbances. Using fuzzy logic systems (FLS) to approximate the unknown functions, a fuzzy adaptive observer is designed to estimate the state. An internal model equation with error is designed via exosystem...
For the control of large angle maneuvers of a spacecraft, variable gain backstepping control is proposed. The controller can make the states of the system converge to the commanded position along the input vector field orientation. The controller stabilizes the system with the amplitude of the commanded torques decreased. Considering the uncertainty of the disturbance torques and the estimation error...
In allusion to requirement of real time and high accuracy in airborne image aided navigation system an algorithm based on robust Hausdorff distance of airborne remote image real time matching is put forward. Because of great information in remote image at first wavelet transform is used to acquire low frequency component to realize image compression to decrease calculation work and increase matching...
With the development of the global economy, interaction among different economic entities from one region is intensifying, which makes it significant to consider such interaction when constructing composite index for each country from one region. Recent advances in signal extraction algorithm and time series modeling technique makes such consideration not only feasible but also practical. Singular...
Wood moisture content (MC) is one of the key parameters which influenced on wood product cost, qualities and efficiency, etc. The fiber saturation point (FSP) cannot be measured directly based the principle of electrical method. In this paper, two prediction measuring algorithms based the autoregressive integrated moving average (ARIMA) and functional link artificial neural network models are considered...
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