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In this paper, we present a test data generation algorithm of combinatorial testing based on Differential Evolution, and introduce a selection and substitution based on the degree of unfinished interaction, in order to optimize the test case selected in further. An IPO-like strategy for generating the test suite is used to reduce the dimension for differential evolutionary computation in the optimization...
This paper proposed a laser environment propagation model based on the split-step Fourier method and the phase screen for a continuous random medium that suitable for the virtual experiment. Combined with von K¨¢rm¨¢n PSD and Parsons law rain drop distribution Model, Fast-Fourier-transform-based model of phase screens are used to simulate the turbulence and continuous random medium induced phase variance...
The test case generation is one of key issues of combinatorial testing. In this paper, a new algorithm for test data generation based on Particle Swarm Optimization (PSO) is presented. Based on Particle Swarm Optimization, the optimization base and extended parameters are introduced. The number of the current output test data is adjusted dynamically according to the data generated before. The efficiency...
Network topology inference, one of the studies of the network tomography, is the proposition of the network link-level performance inference. MLE and grouping methods recently have been proposed as means to infer network logical topology. The time spent on MLE increased sharply with the size of network, which may restrict the technique to be used in practice. The grouping method with less computation...
According to the characteristic of large aspect ratio aircraft, an improved atmospheric turbulence simulation method is proposed. This method can not only calculate atmospheric turbulence value in the centroid of aircraft, but also calculate the numerical atmospheric turbulence at different positions of aircraft on the premise of satisfying the correlation. Using correlation function method generates...
To eliminate interference within electrocardiogram signal (ECS) recorded under complicated Power Line (PL) circumstances, a novel algorithm is proposed. ECS is divided into two parts, linear segment and the nonlinear one. A new linear segment determination rule is presented, by which linear and non-linear segment can be distinguished within single PL period by using the symmetry of sinusoidal wave...
This paper aims at the correspondence hidden dangerous problem in "man-in-the-loop" television guidance system data link, proposed a secure communication protocol base on general analysis of the principle and characteristic of current many kinds of cipher systems, which may apply in the "man-inthe-loop" television guidance data link. And the security and real time analysis of the...
In order to solve the precision guidance problem in television guidance missile system which is caused by time difference between the video frame used by the console and the video frame used by the guided missile. This paper proposes a novel video frame indexing based frame select method for television guidance system. By storing previous video frames and recording their indexing numbers, the same...
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