Applied Mechanics and Materials Vols. 687-691

Abstract: In the interaction of the operating system, drivers and peripheral equipment, for the user of the system at a low level, understand the importance of the system architecture of data communication, hardware programming. In this paper, we through the research and development ofa USB device driver for the underlying data communication and resource management. The method of reverse engineering in this study, we focus on exploring the use of Linux operating system USB protocol and the development of device driver. We must from the evaluation of differentdevice drivers for a variety of experiments and the test results are verygood. We believe, can offer the theoretical basis for the user a clearunderstanding of the actual data communication from the hardware to the user space application and any unsupported peripheral hardware device for the reproduction of the work.

Abstract: In this paper, a print-scan resilient image watermarking scheme based on Radon transform and DCT(discrete cosine transform) is proposed. The watermark is preprocessed with a chaotic sequence, then the host image is transformed to frequency domain by block DCT. The preprocessed watermark is adaptively embedded into the transform domain coefficients by modulating the relationship between neighbor coefficients. The watermark detection process is accomplished without referring to the original image. Simulation results show good robustness against several attacks, such Jpeg compression, cropping, filtering and so on.

Abstract: The virtual network communication system and its construction method is researched, the service quality of the virtual network communication is improved. In view of the virtual network communication problems, the construction method of virtual network communication system is proposed based on UDP protocol. The communication system, it needs to build the UDP protocol. The protocol is taken as the virtual network communication platform, and the data transmission of virtual network communication is completed. Simulation results show that the improved algorithm is applied in the virtual network communication, the virtual network communication system is constructed, and the error rate can be effectively reduced, the efficiency of communication is improved, and it can meet the actual needs of users.

Abstract: This paper introduces the basic mathematical model of fuzzy neural network and T-S model. It uses the fuzzy neural network for targeted emulational signal-noise separation and presents evaluation indexes of the fuzzy neural network’s denoising effect, analyzes its mean square error (MSE), signal-to-noise ratio (SNR), SNR gain, and similarity of signal and theoretical reference signal after denoising. The simulation results show that this algorithm has prominent effect of separation under high and low SNR environment. At last, the experiments for the second lake of Fenhe also validated the superiority and effectiveness of this algorithm.

Abstract: Current intelligent navigation system has been a mature practical science and technology. Computer vision and digital image processing are the core components, which play pivotal role in intelligent navigation system. These two technologies have been widely applied into national defense and traffic industry. Since extreme weather is frequent, there are higher requirement in computer vision and digital image processing technology.

Abstract: With the introduction of a large number of high-definition cameras in safe city construction, it is important to analyze the data of high-definition video camera which densely distributed as the entry point to design a reuse-based high-definition video capture function monitoring and to achieve a virtual mount system. Virtual card mouth research vehicle target recognition technology has become the key technology of virtual mount system construction. This system do video vehicle detection algorithm to realize the vehicle by a bayonet analysis and extraction of moving vehicles can achieve urban networking dispatched for traffic accident and criminal cases to provide effective security information and means to solve the case.

Abstract: According to the effect of vibration on stabilization performance of on-board sighting telescope, a performance test analysis method is built based on the image of sighting telescope. The article mainly studies key algorithms of image pretreatment, median filtering and template matching in the process of image processing. The result indicates that vibration has significant impact on the stabilization performance of sighting telescope, especially for continuous aiming accuracy of different target. This research provides reference for the test and evaluation for the precision of vehicle-mounted sighting telescope stabilization.

Abstract: In this paper, we introduce a new approach for nonlinear demodulation based on multi-class support vector machine (SVM) classification. We propose to measure the performance of this demodulator with different M which is the parameter of M-ray position phase shift keying (MPPSK) modulation, and compare with other demodulation technique. During demodulation, a few sampling points are chosen for multi-class SVM training and testing, which can reduce the complexity of system. Simulation results show that this new approach significantly outperforms the method of using Phase Locked Loop (PLL) demodulation by 10dB, and also better than Back Propagation Artificial Neural Networks (ANN-BP) classification demodulation. With the growth of M, the data rate increased and the performance become a little worse, but less bit SNR is used to achieve the same Symbol Error Rate (SER) as small M. So, it is an effective method to get better performance by using multi-class SVM classification technique for demodulation in MPPSK system.

Abstract: Automatic Guided vehicle (AGV) can free drivers from boring work. Previously AGV guided by black conduction band, as the color is single, it can only used for a kind of vehicle navigation.When there are several kind of vehicles need to be guided, the black conduction band becomes powerless. Color conduction bands can overcome this problem. Usually RGB image should be converted to other image space, and then identified the bands,but it costs lots of time. This paper proposes the design of AGV and intruduces the hardware, also proposes a quick recognition method which can be used in RGB color space. It effectively improved the recognition speed, and realized real-time identification.

Abstract: Urban green fields planning is an important part of urban resources and the environment building, with the rapid development of remote sensing (RS) and geographic information systems (GIS) technology, urban parks and green building research are going with new ideas and methods. This paper discusses the application of RS and GIS technology direction and mode of its application process in green field planning.