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The technology of the distributed compressed sensing is thought as an extension of compressed sensing and it makes applying multiple signals into compressed sensing possible. A vital issue in distributed compressed sensing is to minimize the difference between the original signal and the recovery signal. In this paper, we improve the distributed compressed sensing for smooth signals in wireless sensor...
Linearized Bregman algorithm is effective on solving l1-minimization problem, but its parameter's selection must rely on prior information. In order to ameliorate this weakness, we proposed a new algorithm in this paper, which combines the proximal point algorithm and the linearized Bregman iterative method. In the second part of the paper, the proposed algorithm is further accelerated through Nestrove's...
This paper uses the artificial bee colony (ABC) algorithm for solving the optimal dynamic dispatch (ODD) problems in power system. Many nonlinear characteristics of the generator, such as valve-point effects and the transmission network loss are considered. To show its feasibility and effectiveness, two different systems are demonstrated and compared to other approaches solving the same problem. Moreover,...
Engine anti-theft system is not only flexible and convenient but also high-performance, high-efficient and high-security. Based on the identity authentication principle of engine anti-theft system, with the AES encryption algorithm theory, this paper proposes the AES encryption methods and steps which are appropriate for the identity authentication of engine anti-theft system. It also designs the...
Based on radar system function module 04-combination as the research object, this paper expatiates the establish process of the cross-neural network module of this module electromagnetic pulse action particularly, and designs evaluate system of this kind of electron system electromagnetic pulse effect, using the detailed process that BP-RBF cross neural network evaluation algorithm predicts this module...
CAPTCHA is a test that can tell humans and computer programs apart automatically. The aim is to allow the server to identify the visitor is a human or a computer, and only provide services to human. It can improve the current server system and user information security. The static plane visual CAPTCHA based on OCR problems with the advantages of implementation and operation[1] become the mainstream...
In order to avoid tremendous attack from malicious computer programs, CAPTCHA (Completely Automated Public Turing test to tell Computers and Human Apart) mechanism has been introduced to distinguish humans and computers. Due to the fast development of pattern recognition and artificial intelligence technology, there are increasing safety loopholes concerning traditional 2D static CAPTCHAs, resulting...
By using of chaotic map and block-wise independent technology, a new chaotic fragile watermarking algorithm is proposed in this paper. Firstly, location key is looked as logistic chaotic initial value to iterate and create location matrix, according to this matrix we can generate mapping image and identify the embedding location of watermarking in image blocks. Then watermarking sequence related with...
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