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2001 Vol. 23, No. 3
Display Method:
2001, 23(3): 209-214.
Abstract:
In this paper, a heuristic algorithm-least efFect (LE) algorithm is proposed for the dynamic centralized wavelength assignment problem in fixed-routing wavelength division multiplexing (WDM) networks without wavelength conversion. Compared with the p...
In this paper, a heuristic algorithm-least efFect (LE) algorithm is proposed for the dynamic centralized wavelength assignment problem in fixed-routing wavelength division multiplexing (WDM) networks without wavelength conversion. Compared with the p...
2001, 23(3): 215-220.
Abstract:
This paper considers the modei of optimal estimation of image information when some of the image data are lost due to transmission errors. A new technology is proposed for image recovery in transform coding based on the boundary information of adjace...
This paper considers the modei of optimal estimation of image information when some of the image data are lost due to transmission errors. A new technology is proposed for image recovery in transform coding based on the boundary information of adjace...
2001, 23(3): 221-231.
Abstract:
The deficiency of nowadays Intelligent Network (IN) on the support of the personal communication is analyzed in this paper. The conceptions of the customized service and the personai service are defined in connection with the requirement of the perso...
The deficiency of nowadays Intelligent Network (IN) on the support of the personal communication is analyzed in this paper. The conceptions of the customized service and the personai service are defined in connection with the requirement of the perso...
2001, 23(3): 232-240.
Abstract:
User s interference in the frequency-hopping of communication net can be analyzed using the independent hit model or the Marcov modei with four hit states. In this paper, it is proposed that the error probabilities and erasure probabilities can be de...
User s interference in the frequency-hopping of communication net can be analyzed using the independent hit model or the Marcov modei with four hit states. In this paper, it is proposed that the error probabilities and erasure probabilities can be de...
2001, 23(3): 241-247.
Abstract:
Construction of a BCM code on the Rayleigh-fading channel can be realized by combining component codes, whose minimum product distance and Hamming distance are as large as possible, with set partitioning method proposed by Ungerboeck. However, using ...
Construction of a BCM code on the Rayleigh-fading channel can be realized by combining component codes, whose minimum product distance and Hamming distance are as large as possible, with set partitioning method proposed by Ungerboeck. However, using ...
2001, 23(3): 248-254.
Abstract:
Currently, the surrogate data method has become a widely used method in testing nonlinearity of time series. However, for the null hypothesis of linearly autocorrelated Gaussian noise with the mean and variance of the raw data, the exiting FT algorit...
Currently, the surrogate data method has become a widely used method in testing nonlinearity of time series. However, for the null hypothesis of linearly autocorrelated Gaussian noise with the mean and variance of the raw data, the exiting FT algorit...
2001, 23(3): 255-260.
Abstract:
The wideband digital receiver systems require DDC with high speed and short tuning time in order to intercept narrowband signal in broad tuning bandwidth. However, these requirements can not be met by the commercial DDC. In this paper an efHcient imp...
The wideband digital receiver systems require DDC with high speed and short tuning time in order to intercept narrowband signal in broad tuning bandwidth. However, these requirements can not be met by the commercial DDC. In this paper an efHcient imp...
2001, 23(3): 261-267.
Abstract:
This paper starts with the discussion of the principle of reduced-rank(RR) Space-Time Adaptive Processing(STAP). It is followed by a dedication of the performance upper bound of all eigen-based RR methods provided by Cross Spectral Method(CSM) under ...
This paper starts with the discussion of the principle of reduced-rank(RR) Space-Time Adaptive Processing(STAP). It is followed by a dedication of the performance upper bound of all eigen-based RR methods provided by Cross Spectral Method(CSM) under ...
2001, 23(3): 268-274.
Abstract:
The features of the linearly modulated frequency stepped radar signal (LMFS) and imaging based on it are analyzed. A feasible scheme of target motion compensation is proposed by using designation of radar transmitting signal; ISAR image is achieved b...
The features of the linearly modulated frequency stepped radar signal (LMFS) and imaging based on it are analyzed. A feasible scheme of target motion compensation is proposed by using designation of radar transmitting signal; ISAR image is achieved b...
2001, 23(3): 275-279.
Abstract:
The monopulse estimation for planar array has the property of angle coupling in element and azimuth. 2-dimension monopulse information should be used together to estimate target angle. A linearly constrained adaptive monopulse estimation algorithm fo...
The monopulse estimation for planar array has the property of angle coupling in element and azimuth. 2-dimension monopulse information should be used together to estimate target angle. A linearly constrained adaptive monopulse estimation algorithm fo...
2001, 23(3): 280-285.
Abstract:
A kind of neural networks learning algorithms for multiple-pattern pairs weighted matrix of fuzzy associative memories(FAMs) and its strict theoretic proofs are presented in this paper. Multiple fuzzy pattern pairs can be encoded to store in FAM conn...
A kind of neural networks learning algorithms for multiple-pattern pairs weighted matrix of fuzzy associative memories(FAMs) and its strict theoretic proofs are presented in this paper. Multiple fuzzy pattern pairs can be encoded to store in FAM conn...
2001, 23(3): 286-291.
Abstract:
Based on a linear phased array antenna, sector nulling using phase-only control is analyzed by using a fast algorithm and a partly controlling method. And it can be modeled to a constrained discrete nonlinear optimization problem. An experiment is pe...
Based on a linear phased array antenna, sector nulling using phase-only control is analyzed by using a fast algorithm and a partly controlling method. And it can be modeled to a constrained discrete nonlinear optimization problem. An experiment is pe...
2001, 23(3): 292-299.
Abstract:
A 360?broad-band analog phase shifter is designed by means of CAD. Linear phase-shift, balancing insertion loss and expanding bandwidth of phase shifter are analyzed in detail. The objective function about phase shifter s bandwidth is also deduced. T...
A 360?broad-band analog phase shifter is designed by means of CAD. Linear phase-shift, balancing insertion loss and expanding bandwidth of phase shifter are analyzed in detail. The objective function about phase shifter s bandwidth is also deduced. T...
2001, 23(3): 300-303.
Abstract:
In the paper, a characteristic function is introduced and used to characterize quan-titatively global exponential stability of nonlinear continuous neural network . Some sufficient conditions for the network to be exponentially stable under all monot...
In the paper, a characteristic function is introduced and used to characterize quan-titatively global exponential stability of nonlinear continuous neural network . Some sufficient conditions for the network to be exponentially stable under all monot...
2001, 23(3): 304-307.
Abstract:
In this paper, a new neural network s training method combining back error prop-agation with simulated annealing used to microwave circuit design is discussed. This method can solve the local minimum question of the BP neural network. The new trainin...
In this paper, a new neural network s training method combining back error prop-agation with simulated annealing used to microwave circuit design is discussed. This method can solve the local minimum question of the BP neural network. The new trainin...
2001, 23(3): 308-312.
Abstract:
Range migration correction (RMC) is an important procedure in high resolution synthetic aperture radar signal processing. Range-Doppler method carries out RMC by interpolation in range-Doppler domain. This paper first analyzes the range migration pro...
Range migration correction (RMC) is an important procedure in high resolution synthetic aperture radar signal processing. Range-Doppler method carries out RMC by interpolation in range-Doppler domain. This paper first analyzes the range migration pro...
