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Multicarrier code division multiple access (MC-CDMA) systems has arrested a lot of attention, owing to the simple implementation and powerful resistance to frequency-selective channels and the CDMA with the suitability for multiuser systems. This paper considers the joint channel estimation and interference cancellation for uplink MC-CDMA communication systems in frequency-selective multipath fading...
In the SOLA-VOF method of casting simulation, the explicit difference method is often used for calculating the 3D incompressible viscous equations in filling simulation. Because the time step is limited, the computational efficiency is low. In this work, the new algorithm based on the projection method with the implicit finite difference technique is established to calculate the velocity fields and...
In the current TCP congestion control algorithm, TCP Reno and its variants in the high-speed networks, has encountered many constraints. It is difficult to meet the higher requirements of QoS guarantee. The emergence of the Fast TCP may be used as the alternative TCP in congestion control in high-speed network environment. So it is necessary to make a comparison between TCP Reno and FAST TCP on the...
Which factors influence life cycle cost of torpedo heavily and which factors influence it softly should be analyzed before the life cycle cost model of torpedo is set up. That is to say, the sensitive parameters of life cycle cost should be identified. Using grey relational entropy of the grey system theory identifies the sensitive parameters of torpedo life cycle cost can classify the influencing...
The rotation mechanical vibration system is a certainty complex nonlinear system, in this paper, we research this system based on chaotic theory, the nonlinear rotation system will be in chaotic state when the rotation speed changed, the dynamic behavior of the system at stable oscillation, according to the values of frequency and amplitude of the steer signal, we can get the basic character s of...
Visual tracking of articulated objects in real 3D space is challenging with applications in advanced human–computer interfaces and gesture semantic understanding. In this paper, graphical model, constructing articulated human hand, and NBP algorithm embedded with CAMSHIFT, inferencing hand configuration in 3D space, are applied for visual hand tracking. We also introduce image depth cue captured by...
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