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1995 Vol. 17, No. 1
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1995, 17(1): 1-6.
Abstract:
A neural method to solve the orthogonality search problem arising in direction-of-arrival (DOA) estimation is proposed. The problem is mapped onto the snergy function of the neural network as a linear programming problem. The most important feature o...
A neural method to solve the orthogonality search problem arising in direction-of-arrival (DOA) estimation is proposed. The problem is mapped onto the snergy function of the neural network as a linear programming problem. The most important feature o...
1995, 17(1): 7-12.
Abstract:
A loop-shift Stop Go adaptive digital filter with applications in period detection and signal separation of overlapped periodic signals is presented. The filter places no contraints on the overlapped forms and requires no priori knowl edge except for...
A loop-shift Stop Go adaptive digital filter with applications in period detection and signal separation of overlapped periodic signals is presented. The filter places no contraints on the overlapped forms and requires no priori knowl edge except for...
1995, 17(1): 13-19.
Abstract:
The Cross-spectral estimation methods are efficient in estimating the parameters of sinusoidal signals embedded in colored noise. But up to now there are only FFT and Cross-periodogram methods used in cross-spectral estimation. This paper introduces ...
The Cross-spectral estimation methods are efficient in estimating the parameters of sinusoidal signals embedded in colored noise. But up to now there are only FFT and Cross-periodogram methods used in cross-spectral estimation. This paper introduces ...
CALIBRATION FOR ARRAY CHANNEL MISMATCHING USING SINGLE CALIBRATION SOURCE IN ROUGHLY KNOWN DIRECTION
1995, 17(1): 20-25.
Abstract:
A new calibration method for array channel mismatching is presented. A rough interval of a single calibration source difection is only known in the method. The method can be applied to arbitrary array geometries and suited to low SNR case. In additio...
A new calibration method for array channel mismatching is presented. A rough interval of a single calibration source difection is only known in the method. The method can be applied to arbitrary array geometries and suited to low SNR case. In additio...
1995, 17(1): 26-34.
Abstract:
This paper studies the problem applying Radial Basis Function Network (RBFN) which is trained by the traditional Recursive Least Square Algorithm (RLSA) to the recognition of one dimensional image of radar targets. The equivalence between RBFN and th...
This paper studies the problem applying Radial Basis Function Network (RBFN) which is trained by the traditional Recursive Least Square Algorithm (RLSA) to the recognition of one dimensional image of radar targets. The equivalence between RBFN and th...
1995, 17(1): 35-41.
Abstract:
A new method that seek out best binary code by means of analytics is proposed in this paper, and it was proved that there is no n 13 Barker code as well.
A new method that seek out best binary code by means of analytics is proposed in this paper, and it was proved that there is no n 13 Barker code as well.
1995, 17(1): 42-47.
Abstract:
A simple and useful decision feedback equalizer used for non-linear channels with severe linear distortion and mild non-linear distortion is proposed. It is a combination of a non-linear channel equalizer based on connectionist model and a common dec...
A simple and useful decision feedback equalizer used for non-linear channels with severe linear distortion and mild non-linear distortion is proposed. It is a combination of a non-linear channel equalizer based on connectionist model and a common dec...
1995, 17(1): 48-54.
Abstract:
A bursty traffic model is introduced in this paper to describe the statistical characteristics of packet video. The performance of leaky bucket algorithm with bursty traffic input is analyzed. The influences of various parameters on QOS (Quality of S...
A bursty traffic model is introduced in this paper to describe the statistical characteristics of packet video. The performance of leaky bucket algorithm with bursty traffic input is analyzed. The influences of various parameters on QOS (Quality of S...
1995, 17(1): 55-59.
Abstract:
A new approach to calculate fault detection probabilities is presented. The fault-free simulation is used in this approach. The quantities of controllabilities and observabilities are defined as probabilities of controlling and observing the nodes in...
A new approach to calculate fault detection probabilities is presented. The fault-free simulation is used in this approach. The quantities of controllabilities and observabilities are defined as probabilities of controlling and observing the nodes in...
1995, 17(1): 60-68.
Abstract:
This paper deals with the design of switched-current (SI) high-pass ladder filters using a novel bilinear/feed-forward differentiator (BFD). The BFD is based on SI modular block, the generalized differentiator(GD) proposed in this paper. Various diff...
This paper deals with the design of switched-current (SI) high-pass ladder filters using a novel bilinear/feed-forward differentiator (BFD). The BFD is based on SI modular block, the generalized differentiator(GD) proposed in this paper. Various diff...
1995, 17(1): 79-85.
Abstract:
Gram-schmidt algorithm is an interesting theme in the field of adaptive beamformer as a fast algorithm. However, a key problem associated with this algorithm is the detection of orthogonalisation on the basis of prior-knowledge of interferences dimen...
Gram-schmidt algorithm is an interesting theme in the field of adaptive beamformer as a fast algorithm. However, a key problem associated with this algorithm is the detection of orthogonalisation on the basis of prior-knowledge of interferences dimen...
1995, 17(1): 86-91.
Abstract:
This paper presents a set of basic criteria to assess discretization schemes, which provides for choosing a proper discretization scheme of current continuity equation. According to the basic criteria, this paper also presents a new finite difference...
This paper presents a set of basic criteria to assess discretization schemes, which provides for choosing a proper discretization scheme of current continuity equation. According to the basic criteria, this paper also presents a new finite difference...
1995, 17(1): 92-97.
Abstract:
The changes in the concentration and distribution of EL2 in undoped LEC SI GaAs caused by various annealing conditions were measured. The distribution of dislocation and precipitation of As were also measured for analyzing these changes. The origin o...
The changes in the concentration and distribution of EL2 in undoped LEC SI GaAs caused by various annealing conditions were measured. The distribution of dislocation and precipitation of As were also measured for analyzing these changes. The origin o...
1995, 17(1): 98-102.
Abstract:
The image reconstruction of a supporter is refered to an inverse problem of the defined domain of the integral which describes the physical process under investigation. A theorem is proposed. If the integrand satisfies some conditions, the contour of...
The image reconstruction of a supporter is refered to an inverse problem of the defined domain of the integral which describes the physical process under investigation. A theorem is proposed. If the integrand satisfies some conditions, the contour of...
1995, 17(1): 103-107.
Abstract:
The Q factor of an electromagnetic open resonator due to the mirror reflection loss, mirror diffraction loss and coupling aperture loss has been analyzed in detail, and more precise formulae for calculating the Q factor are obtained. Finally a calcul...
The Q factor of an electromagnetic open resonator due to the mirror reflection loss, mirror diffraction loss and coupling aperture loss has been analyzed in detail, and more precise formulae for calculating the Q factor are obtained. Finally a calcul...
1995, 17(1): 108-112.
Abstract:
The resonant frequencies of the NBS TEM cell have been calculated by the Finite-Difference Time-Domain (FD-TD) and irregularly graded Ttansmis-sion-Line Matrix(TLM) methods. In the calculating process by the FD-TD method a novel processing method for...
The resonant frequencies of the NBS TEM cell have been calculated by the Finite-Difference Time-Domain (FD-TD) and irregularly graded Ttansmis-sion-Line Matrix(TLM) methods. In the calculating process by the FD-TD method a novel processing method for...
1995, 17(1): 69-78.
Abstract:
This paper discussed a number of typical fast algorithms emerged in recent years for Code-Excited Linear Predictive (CELP) coding. They are classified into a number of basic methods, and their computational complexity and storage requirerments are co...
This paper discussed a number of typical fast algorithms emerged in recent years for Code-Excited Linear Predictive (CELP) coding. They are classified into a number of basic methods, and their computational complexity and storage requirerments are co...
