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Research the accurate detecting problems of automobile temperature sensor. For automobile temperature structure is complex and work under the conditions of high temperature and pressure, the conventional sensor faulted detection method is subjected to modeling error and external interference, which causes an improper diagnosis. In order to improve the detection accuracy, this paper put forward a fault...
The finite element model for a commercial vehicle cab body in white is set up. The static stiffness and numerical modal of cab are analyzed. Considering the influence of welding spot on static stiffness, strength and first order modal frequency, the welding spot of cab is divided into two areas based on element strain energy density. And welding spot layout of the two areas are optimized by topology...
This paper develops a robust image watermarking algorithm based on Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT). With the use of masking peculiarity of human visual system, we firstly decompose host image through the three-layer wavelet, and secondly embed the watermark image into the lowest approximation components of the gray image according to the Discrete Cosine Transform...
In this paper, a signal reconstruction algorithm using the scaled conjugate gradient method for periodic nonuniform distributed sampling systems, with applications to the time-interleaved ADCs is proposed. A series of simulation experiments are conducted to compare the performance with the previously proposed algorithms. The results addresses that the proposed robust reconstruction techique provides...
Signcryption is a technology that combines digital signature and encryption in a logical manner. This paper proposes a certificateless signcryption scheme. The scheme not only realizes the property of the certificateless, but also solves the inherent problem of key escrow in identity based public key cryptography. The results of analysis show that the scheme has the properties of public verifiability,...
Currently, since the robustness and anti-interfernce performance of mining method of vehicle failure are weak, the accuracy of failure mining is low. To solve the problem, this paper put forward a new mining technology of vehicle failure based on resisting the interference from the exterior. Through accurately building vehicle model, establishing search model of vehicle characteristic point, dealing...
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