There are many defects in existing single system. A reconfigurable receive scheme based on multi-band signals was proposed, considering new job bands and the compatible of multi-band. The process scheme was reasonably...
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ISBN:
(纸本)9781467329644;9781467329637
There are many defects in existing single system. A reconfigurable receive scheme based on multi-band signals was proposed, considering new job bands and the compatible of multi-band. The process scheme was reasonably chosen by user demand, and the application analysis was carried out. Further, the main processes were described in this paper.
In this paper, the content-based image retrieval was firstly introduced, then analyzed the structure of the open source image retrieval system LIRE framework. Based on these, this paper put forward an image retrieval ...
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ISBN:
(纸本)9781467329644;9781467329637
In this paper, the content-based image retrieval was firstly introduced, then analyzed the structure of the open source image retrieval system LIRE framework. Based on these, this paper put forward an image retrieval results sequencing algorithm, which was based on the mean square difference. And through improving the LIRE system framework, we realized an image retrieval system, and analyzed the application scenarios and commercial value. The retrieval system framework was based on the improvement of the mean square difference sequencing algorithm, which improved the correlation and accuracy of the retrieval results about LIRE, and had good usability and expansibility.
In this paper, the application of remote control model aircraft in transmission line ice cover is discussed. A line icing thickness monitoring system based on graphical user interface and wireless communication transm...
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ISBN:
(纸本)9781467329644;9781467329637
In this paper, the application of remote control model aircraft in transmission line ice cover is discussed. A line icing thickness monitoring system based on graphical user interface and wireless communication transmission is presented. The system is composed of data collection unit and data analyzing workstation. The system structure, functions, design and implementation are mainly introduced.
Many web tools have been developed for information retrieval and information filtering to help users search, locate and manage web documents to find their needs, while IEEE Internet Computing points out that current s...
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ISBN:
(纸本)9781467329644;9781467329637
Many web tools have been developed for information retrieval and information filtering to help users search, locate and manage web documents to find their needs, while IEEE Internet Computing points out that current system can not meet the real large-scale e-commerce demands, for the data from real websites is complex and multi-expression. Intelligent recommendation systems have been proposed to trace down to the acquirement of the personalized knowledge, whose system model suggests to acquire the user's preferences from the former stored cases to satisfy the personalized needs. So we select duplex techniques-rough sets (RS) and radial basis function network (RBF) - to conquer those problems caused by users' data, which are large in records, but rare in attributes. The subsequent research indicates that the newcomer can avoid sensitive to the noise along with the influence of irrelevant items, with which the results of our experiments for the validation on the proposed model are applausive.
The control system has become more and more complex with an increasing demanding of dependability. Sometimes we want to know whether the system is what exactly we want. The use of formal modeling methods and refinemen...
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ISBN:
(纸本)9781467329644;9781467329637
The control system has become more and more complex with an increasing demanding of dependability. Sometimes we want to know whether the system is what exactly we want. The use of formal modeling methods and refinement shows a great potential in solving this problem. In this paper, we proposed an modeling method for control system based on Event-B. Through preprocessing of requirements we can facilitate and guide our modeling. With Rodin platform we instantiate the method using the landing gear control system. The use of invariants as safety constraints and animation helps to complete the verification process. This method not only makes formal modeling easy and approachable, but also helps us find some of the missing requirements.
This paper studies the key technologies of the computer-aided bone surgery system testing techniques, and mathematical modeling, the combination of computer image processing, built knee replacement surgery in the lowe...
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Because of diffraction wave exists in the reflected signal of ground penetrating radar (GPR), which makes the graphics data processing difficult and the data calculation precision inaccurate of ground penetrating rada...
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ISBN:
(纸本)9781467329644;9781467329637
Because of diffraction wave exists in the reflected signal of ground penetrating radar (GPR), which makes the graphics data processing difficult and the data calculation precision inaccurate of ground penetrating radar. A method based on the wave equation migration with finite difference to eliminate the diffraction waves in GPR data processing is proposed in this paper. The research work includes algorithm analysis, practical sample modeling and test. The measurement results prove that this algorithm can meet the test range and precision requirements of GPR.
we present a new communication method at low frequency (LF) of applying a wireless communication system using chirp spread spectrum (CSS) technique. First, we introduce the CSS system, including the modulation and dem...
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ISBN:
(纸本)9781467329644;9781467329637
we present a new communication method at low frequency (LF) of applying a wireless communication system using chirp spread spectrum (CSS) technique. First, we introduce the CSS system, including the modulation and demodulation technique. Then analyze property of LF atmospheric noise in time and frequency domain based on the real atmospheric noise data acquired by superconducting quantum interference device (SQUID) sensor. Finally, we perform the simulation of the CSS system performance in additive white Gaussian noise (AWGN) channel and atmospheric noise channel to verify the feasibility of the application in LF communication system.
With the in-depth development of the electric power information technology, the operation and maintenance of equipment and software become more complex;the technique requirement becomes more and more difficult, and th...
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ISBN:
(纸本)9781467329644;9781467329637
With the in-depth development of the electric power information technology, the operation and maintenance of equipment and software become more complex;the technique requirement becomes more and more difficult, and the security risks expose. The safe operation of the power enterprise information systems, not only directly relates to business efficiency, but also affects the power production and national economic construction. Because of these problems in the operation and maintenance operations, we propose audit system based on the bastion host with proxy technology to monitor and audit the operation of daily operation and maintenance, and effectively address the potential safety hazard.
A remote manufacturing monitoring system based on sensors, RFID (Radio Frequency Identification) and network is designed for keeping track of information which industrial machines are evaluated with. Different sensors...
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ISBN:
(纸本)9781467329644;9781467329637
A remote manufacturing monitoring system based on sensors, RFID (Radio Frequency Identification) and network is designed for keeping track of information which industrial machines are evaluated with. Different sensors, such as, temperature transducer, pressure transducer, noise transducer, current sensor, revolution speed transducer, vibration frequency transducer and RFID tags, are employed in the system to collect information from the industrial machines. The lower-layer field data collection system is linked with the upper-layer monitoring and diagnosis applicationsystem via Zigbee, industry Ethernet and WiFi (Wireless Fidelity). The monitoring system is implemented on machine tools with a user friendly interface. The tests show that the system could check machine tool status efficiently. Both software and hardware implementation are demonstrated in this work.
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