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Based on the variable step-size afïîne projection algorithm, the idea of multiple forgetting factors and variable projection order is proposed. On the one hand, the accurate estimation of error energy is realized in order to achieve faster convergence rate and lower final misalignment. On the other hand, the reduction of computational complexity can be achieved. The simulation results show that the...
This paper is a study to the application of graph traversal algorithms in static Timing Analysis (STA) module of Electronic Design Automation(EDA) tool. After Field Programmable Gate Array (FPGA) read into the design circuit, it replaces circuit with UDM (Universal Design Methodology) netlist internally. STA module does not work directly on the netlist, but converts the netlist to timing graph that...
In the microphone array speech enhancement, The coherent noise has a great influence on the accuracy and speech leakage of the delay estimation in the beamforming algorithm. In this paper, the wavelet threshold denoising method is effectively combined with the beamforming algorithm to acting on every signal of microphone array. It can eliminate coherent noise in the signal to reduce noise-induced...
The cam-type ATC manipulator has the advantages of fast tool changing and high efficiency, but the structure is complex and difficult to design. This paper proposed a new method of globoid cam 3D modeling for ATC manipulator-double-globoid cam mechanism, which could solve the design problem of the cam-type ATC device. Then, the multi-ridge dynamics model of the cam-type ATC manipulator was established;...
This paper analyzes the transmission efficiency of two kinds of communication technologies: summation frame and individual frame. The abstract models for these two communication technologies using linear topology, which is the most popular topology in industrial control field, are proposed in this paper. The simulation results based on the models show that summation frame has a significant performance...
Big data and cloud platform technology continue to develop, making the rapid development of the medical industry, the level of medical electronic higher and higher. Thus, medical data is also more rich mode, incomplete, timing, redundancy characteristics. However, the scientific use of medical data is critical to medical outcomes. In this paper, the characteristics of medical data, the current hotspot...
To deal with the fastly increasing energy consumption and energy costs in the manufacturing process, manufacturing companies are forced to search some methods to reduce energy cost without affecting the yield of their products or sacrificing quality. In this paper, an extended job shop scheduling problem, where machines can work at different speeds with different energy consumption, is modified. A...
In order to improve the elïïciency of apple's grading and ensure the scientilïcity and objectivity of grading, this paper presents a three-stage grading system, namely weighing grading, color grading and shape grading. Hardware design uses high-performance S3C2440 embedded controller, DSP controller, single-chip micro-processor controller, pressure load sensor, color recognition sensor, graphic recognition...
In order to overcome the drawbacks of the traditional frame-difference method that is used in moving target detection, and to achieve both accurate and robust detection result, a novel approach for moving objects detection based on improved Canny edge detection and adaptive frame difference method is proposed in this paper. Firstly, select the threshold value of three-frame difference method adaptively...
With the gradual advance of transmission and distribution price reform, the operating mode and profit model of power grid enterprises will be completely changed. By strengthening the supervision of transmission and distribution costs of power grid enterprises, the government has mobilized the power grid to reduce operating costs and improve the quality of customer service. At the same time, it also...
Wind power and solar energy are representatives of renewable resources, and their volatility and randomization make power grid regard wind power and solar energy as negative load in daily dispatch. The increase of wind power and solar energy in the system may lead to the increase of uncontrollable factors, so the abilities for power grid to receive wind power and solar energy might be limited. Limiting...
In this paper, the fast field program based on propagator matrix is used to model the acoustic field of airborne source in the air and underwater. The main characteristic distributions and the changing law of the airborne source radiated noise through the air-sea interface is analyzed in vertical direction at a certain distance and in level direction at a certain depth. It is of significance to further...
The protection of important nodes in Large-scale software network has been the focus of software engineering. Large-scale software network is a kind of complex network, therefore, we can identify influential nodes in large-scale software networks in the view of complex networks. This paper proposes a method for measure the importance of nodes based on the duplicato-degree and the neighbor clustering...
To remedy the problem of joint-variable oscillation and instability as well as the non-zero final joint-velocity phenomenon arising in the conventional inertia-inverse weighted torque (IIWT) minimization scheme, in this paper, a novel scheme is proposed and investigated for redundant manipulators with joint-physical limits (i.e., limits of joint angle, joint velocity, joint acceleration and joint...
With the establishment of the Emission Control Areas(ECA) of China, and the huge demand of the One Belt One Road (OBOR) strategy of intermodal transport, container intermodal transport will be rapid development in the future. Meanwhile, the air pollution problem is increasingly serious, optimizing the container intermodal transport in port, reducing emissions, and improving operation efficiency, which,...
For the field of weak magnetic anomaly measurement, a high precision three axis fluxgate magnetometer MAG-XYZ is designed, which has a wide dynamic measurement range (0∼ + 100000nT), high measurement accuracy (24-bit analog-to-digital converter) and 2K Hz sampling rate. The basic working principle of FGM3D / 100 sensor is described, and the composition of the three axis fluxgate magnetometer is introduced...
Web tension is the basis of the printing quality in shaft-less drive gravure printing systems. In gravure printing section, the drying devices are installed behind each printing roller for drying the printing ink on the web. As the web material is bi-oriented polypropylene (BOPP) which is sensitive to temperature, the drying system has greatly influence on the web tension in the printing section....
Gravity gradient has a higher resolution than gravity, which makes it play an important role in the exploration of oil and mineral respecting. In order to obtain accurate information about gravity gradient, it is necessary to assess the performance of gravity gradiometer before the survey. In this paper, a new assessment method for measurement accuracy of gravity gradiometer is proposed for the drawbacks...
Image registration is to find the transformation parameters between images, which is in order to eliminate or reduce the image nonlinear or linear deformation caused by the imaging equipment or imaging conditions. In this paper, an image registration model based on the relationship of geometric projection imaging is established. First of all, proposed a calibration method based on planar pattern,...
Traditional medical model is more emphasis on sitting, with the popularity of mobile Internet, mobile smart medical system is got the attention by more and more people. In this paper, the use of pre-safety assessment and testing, the overall consideration of the Internet area within the business area security needs, after the security incident analysis and response to the security platform for continuous...
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