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There were many researches about the parameter estimation of canonical dynamic systems recently. Extended Kalman filter (EKF) is a popular parameter estimation method in virtue of its easy applications. This paper focuses on parameter estimation for a class of canonical dynamic systems by EKF. By constructing associated differential equation, the convergence of EKF parameter estimation for the canonical...
We propose a novel two-dimensional (2-D) direction of-arrival (DOA) estimation method with automatic pair matching. Firstly, the DOAs of elevation angles can be estimated by the singular value decomposition (SVD) of the cross-correlation matrix. Then, we utilize the equation of the two transform matrices between the subspaces and array flow patterns which are corresponding to the elevation and azimuth...
This paper considers the formation tracking control problem of concomitant satellites by using STK (Satellite Tool Kit). A new sliding mode control protocol which is suitable to fight against the gravitational perturbation is proposed to achieve the robust tracking around the given orbit. Information flows are able to be translated in STK simulations by using the time-share scheme. The effective of...
Since Jacquin proposed original fractal image compression technique in 1990, fractal coding method has been developed into various schemes. Traditionally, fractal coding uses mean square error (MSE) to evaluate similarity of image blocks, but the similarity evaluated by MSE usually differs from human visual system (HVS). Compared with MSE, structural similarity (SSIM) is an image measure index which...
This paper proposes a back-propagated network (BPN) and applies it to predict the rainfall using meteorological satellite data. In the case study, the back-propagated network (BPN) combining with SGji-Dao SM/I microwave frequency channels was employed to establish a suitable method for estimating rainfall at sea surface during typhoon periods. These results are then verified with the data from four...
Software reliability growth models (SRGMs) based on the non-homogeneous Poisson process (NHPP) are quite successful tools that have been proposed to assess the software reliability. Most NHPP-SRGMs assume the detected faults are immediately corrected, but it is not the case in real environments. In this paper, incorporating the testing coverage, considering imperfect debugging and correcting time...
Chip-Package interaction (CPI) has drawn much attention for very low-k (VLK) packaging technology development, especially as the electronic industry is moving from SnPb solder to lead-free solder. In this study, a multi-level finite element model is used to optimize the interconnect scheme from a packaging reliability point of view. Factors including top metal (or SiO2) thickness, passivation dielectric...
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