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According to the "cogeneration" curriculum characteristics, combined with the teaching practice, the teaching difficulty undertakes an analysis, put forward the teaching methods and suggestions. Hope that through this curriculum teaching, the students after graduation design and work to achieve good effect, to improve the quality of teaching, to deepen the understanding of curriculum knowledge...
In this paper, principles of time interleaved ADC and VCO-based ADC architectures are introduced. A design of VCO-based ADC which is suitable to be used in time interleaved ADC architectures is presented. In the design, a high speed sample and hold circuit is realized for wideband input, multi phase ring oscillator is adopted in order to increase time resolution, multi phase edge counter is used to...
To solve the stability and rapidity problem of visual tracking, the paper presents a method that the characteristic points in sequenced images assemblies for target is collected by the Gabor filter, and turned into matching templates. The detection with the Sobel operator is used to get initial points position, to determine each initial point parameter, and in this way we can speed up optimizing for...
A scheme for high resolution image coding is proposed in this paper. In this scheme, 8×8 block-based DCT and multiresolution reordering is performed on the input image to obtain three-level wavelet-like tree structure. The same procedures are performed repeatedly on LL subband to obtain multi-level wavelet-like tree structure. The experiment results demonstrate that the proposed scheme provides better...
To obtain a good performance of bandpass filter, a more compact microstrip structure is proposed in this paper. Using embedded symmetrically triangular open loops into the resonator, three transmission zeros are found in its' stopband. Therefore, characteristic of sharp rejection is formed, and much smaller size has been obtained for this filter. Compared to the conventional structure using one triangular...
Pattern matching is an important detecting method of a misuse intrusion detection system. With the increase in the number of rules, the performance of pattern matching algorithm has been a gradually decline and has been a bottleneck. A new type of pattern matching based on suffix tree is proposed. The method mines rule's data structure and prunes rule set based suffix tree, the model size of the search...
ZigBee technology brings about the application of wireless communication and data transformation technology in transformation system due to its low cost and low power consumption. This paper presents a solution of access control system base on the ZigBee technology under IEEE802.15.4 standards with the transformation system. The solution of ZigBee is presented mainly adopting RF chip MC13192 with...
As one of the most important element in knowledge system, math formulas is playing an important role in web based remote teaching, information publication and academic exchange. However, in current situation, the difficulty of searching formulas is always upsetting. A formula search system is designed in this paper. It is able to implement online math formula input and precise search. The system uses...
With the limitations of airborne sensors configuration of conventional miniature UAVs, this paper proposes a practical real-time algorithm which can integrate barometric height and GPS altitude. This algorithm uses the GPS altitude to calibrate baro-altimeter on-line, without considering the motion model and maneuverability of carrier. Tests showed that the fusion algorithm has significantly improved...
This paper conducts a research on the spam detection in the field of Chinese product reviews. As to useless reviews, the paper uses four important classification features based on questions, hyperlinks and so on to characterize reviews, and then adopts the classification method based on the Logistic regression to detect the useless reviews. As to those untruthful reviews, firstly 2-gram model is proposed...
In this paper, a new envelope tracking (ET) technique is proposed for concurrent dual-band power amplifiers (PAs). By combining the envelopes of two input signals of PAs at different frequency bands with proper weights, the ET technique realizes an enhancement in the total efficiency. The bandwidth of the synthesized envelope is analyzed. The result shows that the proposed ET technique does not increase...
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