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S transform has the characteristic of short Fourier transform and wavelet transform, but the basic wavelet in S transform is invariable and it isn't the same with seismic data absolutely. So a generalized S transform is discussed in the paper and used to predict thin bed. Simulation experiments and processing results of real data reveal that generalized S transform is feasible and effective to predict...
Fire-control radar network uses data fusion to form more accurate estimate of a target track, the prerequisite of normal data fusion is the system bias registration. In fire-control radar network, due to the existence of the approximating bias of coordinate conversion model and time synchronization bias, data fusion process brings the immitted system biases besides inherent system biases. This paper...
Based on the research of Pervasive Computing connotation, development and theoretical system architecture, this Paper advanced the support theory of Pervasive Computing system for the first time and analyzed the key technology of the Pervasive Computing system support theory. This paper orients the development of the Pervasive Computing system support theory, and it is very important for the research...
Curvelet transform is more suitable than wavelet transform for planar image processing. The theory of curvelet transform is introduced. Noise-image is carried on decomposition based on curvelet transform, and distribution characteristics of noise are analyzed. Applying a quantization method of using threshold of which the function is continuous and differentiable is proposed, to remedy disadvantages...
The problem of spectral estimation in reverberation noise is considered in this paper. Since the reverberation is inherently deterministic, a new complexity measure called the phase space volume (PSV) is introduced for estimation instead of using the conventional probabilistic measures. We show that the unknown spectral of a signal embedded in reverberation noise can be obtained by minimizing the...
We discuss a result of corrosion and Anodic Oxidation occurring on anode of silicon carbide electrodes in this paper. Electrode behavior are investigated to produce a evaluation of oxidation. In the final we discussed the effects of film stress that produced by anodic oxidation, and suggestions to prevent corrosion are also be presented here.
In the analysis of the non-stationary vibration signals during speed-up and speed-down, the real state can not be reflected by the traditional spectral analysis because of the "frequency smear" phenomenon; At the same time, the conventional method of acquiring the rotating speed has the problem of the interpolatation errors and influence the effect of order analysis. To solve the above problems,...
Pervasive computing as the third mode of computing is being applied in all aspects of life. The paper has given out a new design of logistic by using products and theory of pervasive. Design of modern logistics management system, under using of pervasive computing environment, will make Logistics industry achieve greater efficiency and more relaxed management environment.
In this paper, design method of optical air chamber for infrared gas sensor is described in detail based on the principle of infrared absorption by gas molecule. IRL715 infrared light source and PYS3228 pyroelectric detector with double filters are adopted to detect signal. The optical air chamber is processed with waterproof and dustproof treatment. Effect analysis for sensor performance of two different...
In order to solve the SINS active vibration control, propose a kind of flexible plate used in SINS of intelligent structure matrix of active vibration control method. This method in establishing flexible sheet on the basis of dynamic model, value-based modal analysis of force to extract the necessary space model reduction mode, based on modal force of piezoelectric element determination criterion...
We propose a novel object tracking algorithm based on modeling the target appearance in a joint space. In contrast with traditional histogram-based trackers which discard all spatial information, the joint space takes both the photometric and spatial information into account. Within this joint space, the target is modeled in a Gaussian mixtures manner where a richer description of the target is captured...
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