In response to signals and system simulation studies, MATLAB also demonstrated its strong role, with MATLAB simulation for the time signal convolution, discrete, continuous LIT system of time-domain analysis, synthesis and periodic signal of decomposition, the bi-frequency system Domain analysis, signal modulation and demodulation, discrete systems, the Z-domain analysis.

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DSP is used to realize digital controllers of velocity-loop and position-loop. Analyze and validate that dividing high-level continue controller to several low-level controllers, then discretize the low-level controllers to form series controller can depress the discretization control error.

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Based on performing QR decomposition of an affine scaling equality constraint matrix, the conducted subproblem in the algorithm is the general trust region subprob-lem defined by minimizing a quadratic function subject only to an ellipsoidal constraint.

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In order to overcome the handicap to extract line-segments from natural hand-printed Chinese characters, the extension is made to other structural features, and the generalized connected background region is defined, and its extraction and recognition algorithm are developed. This recognition algorithm is based on matrix singular decomposition and invariant transformation theory.

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To deal with the problem,a reduced order model based on time-domain proper orthogonal decomposition is investigated.

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In this method,image compression is completed by singular value decomposition of the wavelet coefficient.

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Secondly, method of Taylor series is used to approximate the slow manifold and the O approximation of the slow manifold is given; slow dynamics such as saddle node bifurcation which has been proven to be the same as that for the full system is analyzed; at the same time, fast dynamics including bifurcation conditions and domain of attractor of the stable equilibrium are also analyzed; the attracting region which consists of the stable manifold of the unstable equilibrium and stable equilibrium is given; we found that when the inner flux decay increases, the domain of attractor is enlarged.

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On the bais of fundamentals of the local wave decomposition method, frequency decomposition spectrum and frequency extraction from seismic signals based on the local wave decomposing method are studied.

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In this paper, beamlet prestack depth migration based on Ga borDaubechies frame decomposition is used for angledomain imaging. Through different stack procedures, both common reflectionangle image gathers and common dipangle image gathers are constructed from the loc al angle image matrices.

本文在采用GaborDaubechies框架分解的小波束疊前角度域偏移成像基礎(chǔ)上，利用不同的疊加方法由局部角度域像矩陣得到了反射角域CIG和傾角域CIGav在线免费资源。

So the given information about time domain can be made use and it will form information accumulation effect to suppress interference frequency and weaken impact noise effectively without incensement in calculation.

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