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Although the Total Variation (TV) model has good performance in the image inpainting including both maintaining damaged images' edge and reducing numerical calculation, it should be improved in the inpainting domain with rich texture. In this paper, an image multi-level-inpainting method based on TV model and texture synthesis scheme is proposed. It is the main research topic to improve the visual...
Wideband code division multiple access signal is non-periodic signal, which always floods in the background noise, bringing difficulties to the signal's reconnaissance. In order to detecting this signal, the detection method based on the quadratic fourth-order moment chip of WCDMA is proposed, and the amount of calculation is reduced by using fast calculation method about fourth-order moment chip...
In mobile multiple-access communications, not only the location of active users, but also their number varies with time. In typical analysis, multiuser detection theory has been developed under the assumption that the number of active users is constant and known at the receiver, which coincides with the maximum number of users entitled to access the system. This assumption is often overly pessimistic,...
DS-CDMA in the modern civil and military communications is widely used. Due to its low power spectral density, the DS-CDMA signal always floods in the background noise, bringing difficulties to the signalpsilas reconnaissance. Therefore, DS-CDMA signal detection has attracted attention of researchers. Because the fourth-order moment chip is blind to the arbitrary Gaussian noise, the detection method...
Owning to the expansion of network scale and complication of network construction, it has a big challenge to previous network monitoring technology. After analyzing the network monitoring technology and IA (intelligent agent) technology, in this paper, a method based on IA is proposed to complete dynamic network monitoring, developed by a cross-platform language Python, including two monitoring modes:...
In real uplink multicarrier CDMA (MC CDMA) communication system, the asynchrony of active userspsila signature is a key factor of multiple access interference(MAI). Considering users access randomly, not only the location of active users, but also their number varies with time. In typical analysis, multi-user detection theory for MC CDMA has been developed under the assumption that the number of active...
To reduce computation complexity of the optimal multi-user detector, an algorithm that employs discrete shuffled frog leaping for the multi-user detection problem (DSFLA-MUD) is proposed. A discrete shuffled frog leaping algorithm is firstly proposed, and then, it is used in multi-user detection to improve the detection performance. Simulation results show that the proposed DSFLA-MUD has significant...
In mobile multiple-access communications, not only the location of active users, but also their number varies with time. In typical analysis, multiuser detection theory has been developed under the assumption that the number of active users is constant and known at the receiver, and coincides with the maximum number of users entitled to access the system. This assumption is often overly pessimistic,...
In mobile multiple-access communications, not only the location of active users, but also their number varies with time. In typical analysis, multiuser detection theory has been developed under the assumption that the number of active users is constant and known at the receiver, and coincides with the maximum number of users entitled to access the system. This assumption is often overly pessimistic,...
Since the convergence speed of LMP algorithm is relatively slow, it can not be used in some situations where the demand of real-time processing is very strict. In this paper, the wavelet transform is used in an adaptive filtering structure under alpha-Stable distribution pulse noise. The input signal of adaptive filter is processed by wavelet transform. The large spread in eigenvalues and the condition...
An analysis method of frequency hopping (FH) signals based on image processing is proposed in this paper. Firstly the time-frequency spectrum of FH signals is obtained using short time Fourier transform (STFT), secondly the background noise in time-frequency spectrum is removed by contrast stretch, binarization operation and morphological operation, and then time-frequency resolution is improved by...
Since the convergence speed of NLMP algorithm is relatively slow, it can not be used in some situations where the demand of real-time processing is very strict. In this paper, a parallel form of adaptive filter under alpha-Stable Distribution Pulse noise is obtained by introducing parallel FIR filter form based on polynomial decomposition. The simulation results indicate that the parallel form of...
Finding the optimum path or routing always is an important and difficult issue in a practical dynamic network. In this paper, a new routing approach that due to multiple requirements in the reconfigurable network is briefly discussed. In order to obtain the optimum path between two nodes, we use the ant algorithm with which the problem can be attached to select the path. Simulation results shows that,...
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