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This paper concerns on inefficiency or even failure in secret key generation caused by the imperfect channel state information. We propose a secret key generation scheme based on wavelet analysis. Firstly, the channel estimates are pre-processed by wavelet analysis to improve the correlation. Secondly, to ensure the randomness of the secret keys, an adaptive equal probability quantization approach...
Flight test subjects have high risk and difficult to evaluate quantificationally. A test pilot model based on distribution hypothesis verification is proposed to obtain the test pilot's manipulation parameter. Delay time is selected as an example to illustrate the method. Aircraft model and hydraulic system model is established. Failure model of hydraulic system's sensor and actuator malfunction,...
As the development of integrated circuit, the algorithms of security vulnerability detection available are not suitable for encrypted PLD in large scale, which would bring in acceptable consumption of memory and time. By analyzing the relation of input signals and output signals of the sequential logic circuit, the parallelism of state saturating and the parallelism between CPU and detection platform...
Generally, the code excited linear predictive (CELP) coding is known as one of the best algorithms for bit rate between 4 kbps and 16 kbps. Recently, the algebraic CELP (ACELP) algorithm has been widely adopted in standard speech coders such as G.729 and Adaptive multi rate (AMR) and AMR Wide Band (AMR-WB).In order to improve the speech quality based on CELP algorithm, harmonic Pitch pre-emphasis...
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