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Real-time and accuracy are key indicators of object tracking. Traditional particle filter tracking requires calculating a large number of particles, which influences its real-time performance, Mean-shift is a non-parametric kernel density iterative algorithm, which is easily prone to local optimum and converges on non-real target. This paper proposes a new fusion tracking algorithm. It firstly extracts...
A novel signal processing method, called sensitive frequency band (SFB) selection, is proposed based on the correlation coefficients between the original signal and its reconstructed approximation and detail parts. By identifying the noised-related and fault-related SFBs, the SFB selection method can be used to reduce noise and extract fault feature effectively for a signal. This method is applied...
A new threaded-tree immunization method is proposed in this paper. It refers to searching out highly connected nodes in the network to immunize, by querying a random selected initial node to get its neighbors and then do the same thing to these neighbor nodes recursively. We apply the SIS model on it to do some simulation. And a comparison is then made of the threaded-tree strategy with acquaintance...
Although traditional waveform analysis in time domain plays an important role in realizing engine non-disintegration fault diagnosis, this method fails to make an accurate fault diagnosis when fault waveform and normal waveform are very close. To solve this problem, a new method based on frequency space subdivision (FSS) in wavelet transform (WT) is proposed and applied in this paper. Meanwhile, a...
The development of vacuum casting equipment and vacuum casting technology at home and abroad are summarized; key techniques and technical difficulties that affect the quality of the product and efficiency in the casting process are analyzed in this paper. Based on this, this paper puts forward a new design of new automatic vacuum casting system and gives a detail analysis of the modules in the system,...
A new series equalizer based on constant modulus algorithm (CMA) and decision-directed (DD) algorithm is proposed to overcome inter-symbol interference (ISI) much better in the communication system without the aid of training sequences. The proposed equalizer uses the CMA as the forward filter and DD algorithm as the back filter. These two filters are series and operate concurrently. It makes full...
A new Decision-Feedback Equalizer (DFE) is proposed to overcome Inter-Symbol Interference (ISI) faster in the communication system without the aid of training sequences. Unlike the conventional DFE, the feedforward filter component and the feedback filter component in the proposed DFE operate with Constant Modulus Algorithm (CMA) and Decision-Directed (DD) algorithm respectively. It makes full use...
A new spectral analysis method for analog-to-digital converter (ADC) dynamic parameters testing is presented. ADC characterization by spectral analysis has traditionally been done with discrete Fourier transform, which imposes restrictions to optimize results; one of these is coherent sampling. This paper uses resampling methods to change the sampling rate by a noninteger factor and estimates the...
ISP network performance evaluation is very important to the improvement of application performance, the optimum competition of ISP network and the operation and management of Internet. ISP network consists of one or several autonomous systems (AS), so AS is chosen as a basic unit of performance evaluation. The performance measurement architecture of AS was put forward, and performance matrix model...
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