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1996 Vol. 18, No. 5
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1996, 18(5): 449-454.
Abstract:
The convergence of the inverse correlation matrix iteration algorithm is analyzed. In order to avoid computing the inverse correlation matrix in the algorithm, this paper presents an eigenvalue shift iteration algorithm, and analyzes its convergence....
The convergence of the inverse correlation matrix iteration algorithm is analyzed. In order to avoid computing the inverse correlation matrix in the algorithm, this paper presents an eigenvalue shift iteration algorithm, and analyzes its convergence....
1996, 18(5): 455-461.
Abstract:
A new quadratic time-frequency distribution (TFD) with a compound kernel is proposed and a comparative study of several popular quadratic TFD is carried out. It is shown that the new TFD with compound kernel has stronger ability than the exponential ...
A new quadratic time-frequency distribution (TFD) with a compound kernel is proposed and a comparative study of several popular quadratic TFD is carried out. It is shown that the new TFD with compound kernel has stronger ability than the exponential ...
1996, 18(5): 462-466.
Abstract:
The multisensor detection area partitioning is considered. An approach is presented to the fusion in each detection area where the sensor uses different thresholds and then at system level. The expressions of the detection probability and false alarm...
The multisensor detection area partitioning is considered. An approach is presented to the fusion in each detection area where the sensor uses different thresholds and then at system level. The expressions of the detection probability and false alarm...
1996, 18(5): 467-472.
Abstract:
This paper presents a new Constant-False-Alarm Ratio(CFAR) detector based on Ordered Statistics(OS) and Cell-Averaging(CA) forming local estimates, and using Greatest-Option (GO) to form interference power level estimate Z in test cell (OSCAGO). Unde...
This paper presents a new Constant-False-Alarm Ratio(CFAR) detector based on Ordered Statistics(OS) and Cell-Averaging(CA) forming local estimates, and using Greatest-Option (GO) to form interference power level estimate Z in test cell (OSCAGO). Unde...
1996, 18(5): 473-478.
Abstract:
An ATM network is expected to support a large number of bursty traffic sources. In this paper, bursty traffic is described by the Interrupted Bernoulli Process (IBP). With the use of a recursive algorithm, the cell loss probability and the average de...
An ATM network is expected to support a large number of bursty traffic sources. In this paper, bursty traffic is described by the Interrupted Bernoulli Process (IBP). With the use of a recursive algorithm, the cell loss probability and the average de...
1996, 18(5): 479-486.
Abstract:
The coding gains, that is, self-gain and mutual-gain with their variations for memories are defined and the formulas for computing the gains are derived, so that the criteria, which will enable the system designers for choosing best code, are given. ...
The coding gains, that is, self-gain and mutual-gain with their variations for memories are defined and the formulas for computing the gains are derived, so that the criteria, which will enable the system designers for choosing best code, are given. ...
1996, 18(5): 487-495.
Abstract:
It is well known that any cryptographic system can be described by a nonlinear furc-tion. This paper studies the nonlinearity of Boolean functions and the effect of certain operations on the nonlinearity of Boolean functions by using the spectral tec...
It is well known that any cryptographic system can be described by a nonlinear furc-tion. This paper studies the nonlinearity of Boolean functions and the effect of certain operations on the nonlinearity of Boolean functions by using the spectral tec...
1996, 18(5): 496-500.
Abstract:
By using the model of air-oil film-sea water system, the influences of the oil thickness, operating frequency of the radiometer and incidence angle of the beam on the effective emissivity are calculated and analysed. The optimal scheme for passive mi...
By using the model of air-oil film-sea water system, the influences of the oil thickness, operating frequency of the radiometer and incidence angle of the beam on the effective emissivity are calculated and analysed. The optimal scheme for passive mi...
1996, 18(5): 501-507.
Abstract:
B-spline is applied to the reconstruction of 2-D conductor cross-section via backscat-tered field in near region illuminated by plane waves with different incident directions. The whole inverse problem may be viewed as a two-stage optimal procedure, ...
B-spline is applied to the reconstruction of 2-D conductor cross-section via backscat-tered field in near region illuminated by plane waves with different incident directions. The whole inverse problem may be viewed as a two-stage optimal procedure, ...
1996, 18(5): 508-512.
Abstract:
The interaction of human body with penetrated electromagnetic fields through aperture in conducting surface is considered by using the finite-difference time-domain method and inhomogeneous man models. First, the characteristic of penetrated electrom...
The interaction of human body with penetrated electromagnetic fields through aperture in conducting surface is considered by using the finite-difference time-domain method and inhomogeneous man models. First, the characteristic of penetrated electrom...
1996, 18(5): 513-518.
Abstract:
The problems of the second harmonic and three coupled waves in homogeneous lossy nonlinear dielectric are analysed. Under the conditions of same damp and phase-matching, the exact solutions are derived.
The problems of the second harmonic and three coupled waves in homogeneous lossy nonlinear dielectric are analysed. Under the conditions of same damp and phase-matching, the exact solutions are derived.
1996, 18(5): 519-525.
Abstract:
An analysis of electromagnetic backscattering data using Wavelet Packet Transfrom (WPT) is presented. Due to its adaptive multiresolution property. WPT is well adapted to resolve the multiscale features of backscattering data. In particular, with res...
An analysis of electromagnetic backscattering data using Wavelet Packet Transfrom (WPT) is presented. Due to its adaptive multiresolution property. WPT is well adapted to resolve the multiscale features of backscattering data. In particular, with res...
1996, 18(5): 526-531.
Abstract:
A novel three layers microstrip antenna elect that has the advantages of wide band and high gain is proposed. The characteristic equation and the frequency characteristic formulas of the input stand wave ratio are obtained by using the spectral domai...
A novel three layers microstrip antenna elect that has the advantages of wide band and high gain is proposed. The characteristic equation and the frequency characteristic formulas of the input stand wave ratio are obtained by using the spectral domai...
1996, 18(5): 532-536.
Abstract:
This paper discusses the definition and properties of multivalued symmetric functions, and points out that a multivalued symmetric function can be decomposed according to the value of the function j. The subfunction L j corresponding to j will certai...
This paper discusses the definition and properties of multivalued symmetric functions, and points out that a multivalued symmetric function can be decomposed according to the value of the function j. The subfunction L j corresponding to j will certai...
1996, 18(5): 537-543.
Abstract:
Detailed analysis of transient characteristics of ECL circuits is performed in this paper, then a relatively exact propagation delay expression applied to all temperatures is presented. The cryogenic characteristics of some dominant parameters contri...
Detailed analysis of transient characteristics of ECL circuits is performed in this paper, then a relatively exact propagation delay expression applied to all temperatures is presented. The cryogenic characteristics of some dominant parameters contri...
1996, 18(5): 544-548.
Abstract:
Novel distributed parameter neural networks are proposed for solving partial differential equations, and their dynamic performances are studied in Hilbert space. The locally connected neural networks are obtained by separating distributed parameter n...
Novel distributed parameter neural networks are proposed for solving partial differential equations, and their dynamic performances are studied in Hilbert space. The locally connected neural networks are obtained by separating distributed parameter n...
1996, 18(5): 549-552.
Abstract:
This paper proposes an HB weighted adaptive time delay estimator. The theoretical analysis and the computer simulation show that this new method does not depend on the knowledge about input signals and it has a higher precision and faster convergence...
This paper proposes an HB weighted adaptive time delay estimator. The theoretical analysis and the computer simulation show that this new method does not depend on the knowledge about input signals and it has a higher precision and faster convergence...
1996, 18(5): 553-557.
Abstract:
The error performance of continuous phase modulation (CPM) with optimal coherent detection depends on the minimum squared Euclidean distance (MSED). In this paper, a reduced-state trellis for full response CPM is presented under the condition that th...
The error performance of continuous phase modulation (CPM) with optimal coherent detection depends on the minimum squared Euclidean distance (MSED). In this paper, a reduced-state trellis for full response CPM is presented under the condition that th...
1996, 18(5): 558-560.
Abstract:
A variational expression of the propagation coefficient of the dominant mode in twisted rectangular waveguide is derived on the basis of the theory of the nonstandard eigenvalue problems, and the numerical results are compared with that of perturbati...
A variational expression of the propagation coefficient of the dominant mode in twisted rectangular waveguide is derived on the basis of the theory of the nonstandard eigenvalue problems, and the numerical results are compared with that of perturbati...
