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In the control of traditional hydraulic systems, there will be large pressure fluctuations for the ordinary hydraulic cylinders in the condition of varying load. For this case, we design a four-chamber hydraulic cylinder. By using the hollow rod as another cylinder body, we make two-chamber ordinary hydraulic cylinder into four-chambers. In the control of digital fluid power systems, the number of...
Aiming at the coal mine water inrush complex features an improved LMS algorithm Noise vortex flow measurement systems are more accurate measurements of downhole fluid flow conditions differ based on existing technologies. By changing the step size LMS algorithm to minimize the noise, making the measurement of the flow rate of the vortex flowmeter is more accurate. At the same time the algorithm and...
As current video based vehicle detection algorithms can not detect the traffic congestion accurately, this paper presents a new adaptive background updating algorithm based on Kalman filtering and inter-frame centroid distance. Firstly, a Gauss mixture background model is set up to extract the moving vehicles. Then, with Kalman filtering method, the moving vehicles are tracked to identify their motion...
For parallel test issue of multiple devices, we propose a wireless parallel test system based on ZigBee, with a master device works as the coordinator to create a wireless network and many slave devices working as terminal nodes. With the help of a master device and slave devices, test commands can be sent to every device under test (DUT) and receive the corresponding test results from every DUT in...
For the design of human resource management system, we proposed a multi-agent system. In this paper, we analyze the contemporaneity agent technology and discuss the method which is put in the design of human resource management information system to implement the management efficiency based on its characteristics of self management, reaction, cooperation, evolvement and communication. It deals with...
Blind deconvolution based on independent component analysis (ICA) has become the focus of intensive research due to its potential in many applications. However there exists the question that the number of sensors is usually less than the number of source signals. In this paper, by using convolution operation to the input signal, a new algorithm based on nonlinear ICA is proposed. This algorithm is...
In this paper, to the issue of early warning radar weak moving target detection, firstly, a blind signal processing technology for clutter suppression is proposed to effectively separate weak target signal from strong background clutter. Then an improved dynamic programming method is proposed. This method, based on characteristics of incoming targets, can significantly reduce computation. Simulation...
To reduce the influence of imperfect correlation characteristic between the spread sequences and noise in the channel on the performance of detection algorithms, two improved algorithms used to detect parallel combinatory spread spectrum (PCSS) signal are proposed. The improved detection algorithms based on cyclic correlation apply the cyclic correlation characteristic of PCSS signals to suppress...
The air-sparged hydrocyclone (ASH), known as a new type of efficient flotation apparatus, was used in grinding-classification circuit to control the overgrinding of hydrophobic materials after some modifications by the authors. The overgrinding of hydrophobic materials, resulted from the fact that the hydrophobic materials have higher density than the hydrophilic materials, has been known as a knotty...
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