This paper proposes the two‐dimensional (2‐D) cutting‐stock algorithm based on the local optimization. First, it is intended to eliminate the combinational process for the rectangular parts in the traditional syste...
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This paper considers an unknown nonlinear static system with an adjustable parameter (input parameter). The problem is to find the least‐square approximation input parameter. A recursive algorithm is proposed that es...
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Discrete short time Fourier transformation (DSTFT) is a common and effective method in digital signal processing and analysis. In the most applications, amplitude information of Fourier transform is utilized instead o...
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ISBN:
(纸本)9781510811249;1510811249
Discrete short time Fourier transformation (DSTFT) is a common and effective method in digital signal processing and analysis. In the most applications, amplitude information of Fourier transform is utilized instead of phase information. An algorithm based on the sliding DSTFT is presented in this paper. The demodulation of DQPSK signal is achieved using phase information in frequency domain. The principle and process of the algorithm are detail researched. The fast recursive algorithm is given under the two window functions, and the bit error rate (BER) is analyzed. The simulation shows that the DSTFT-based algorithm can get high performance, and facilitate software real-time processing. In the Gaussian white noise channel, when BER is 10 -4 , the performance of the algorithm is nearly 1dB better than the traditional differential detection method.
In order to solve the problem how to detect the wave head for traveling-wave based fault location when fault occurs, a new kind of wave head detecting algorithm for precise positioning which based on Kalman filtering ...
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ISBN:
(纸本)9781467371070
In order to solve the problem how to detect the wave head for traveling-wave based fault location when fault occurs, a new kind of wave head detecting algorithm for precise positioning which based on Kalman filtering is proposed. Model of voltage traveling wave is set up according to the actual characteristics of traveling wave signal. Recursion method of Kalman filtering is used to process the signal which contains fundamental component and harmonic component in the model. Getting the filter results and wave head signal can be achieved by subtracting the result from the original signal. The single-phase grounding model is established, then use this method to extract the wave head signal from the transient travelling wave signal in this model. Simulation results show that, the method proposed can effectively detect the wave head, so it has promoted value.
A connected-(r, s)-out-of-(m, n): F system, which is defined as a two-dimensional version of a consecutive-k-out-of-n: F system, is used as a reliability evaluation model for a sensor system, an X-ray diagnostic syste...
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A connected-( r,s )-out-of-( m,n ):F system, which is defined as an extension model of a consecutive- k -out-of- n :F system, is used as a reliability evaluation model for a sensor system if the following conditions a...
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