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1992 Vol. 14, No. 1
Display Method:
1992, 14(1): 1-6.
Abstract:
A new method for analysing dynamics of continuous competitive neuralnetworks has been proposed, and the necessary convergence conditions for a class of associative networks has been obtained. Based on the stability criterion and the equations of equi...
A new method for analysing dynamics of continuous competitive neuralnetworks has been proposed, and the necessary convergence conditions for a class of associative networks has been obtained. Based on the stability criterion and the equations of equi...
1992, 14(1): 7-14.
Abstract:
A new auditory system model based on a combination of physiological andpsychological acoustic data has been proposed. This model consists of a bank of nonuniform bandpass filters, detectors and main-frequency choosing mechanisms, they act as basilar ...
A new auditory system model based on a combination of physiological andpsychological acoustic data has been proposed. This model consists of a bank of nonuniform bandpass filters, detectors and main-frequency choosing mechanisms, they act as basilar ...
1992, 14(1): 15-20.
Abstract:
constructing method for n-terminal equivalent subnetwork is developed, and a transformation of voltage equations for transposing reference nodes is given. These should have not only theoretical but also practical significance. And the computing speed...
constructing method for n-terminal equivalent subnetwork is developed, and a transformation of voltage equations for transposing reference nodes is given. These should have not only theoretical but also practical significance. And the computing speed...
1992, 14(1): 21-28.
Abstract:
A decomposition approach of logic functiony is discussed. The design method, by which the minimization or near minimization of tree-type logic networks can be obtained, is presented when multiple variables combinational logic function is implemented ...
A decomposition approach of logic functiony is discussed. The design method, by which the minimization or near minimization of tree-type logic networks can be obtained, is presented when multiple variables combinational logic function is implemented ...
1992, 14(1): 29-34.
Abstract:
How to start oscillation and how to stabilize amplitude in SC oscillators are discussed. New methods for start-oscillation and amplitude-stabilization of SC oscillators are presented. The control circuitry with good stability for amplitude-stabilizat...
How to start oscillation and how to stabilize amplitude in SC oscillators are discussed. New methods for start-oscillation and amplitude-stabilization of SC oscillators are presented. The control circuitry with good stability for amplitude-stabilizat...
1992, 14(1): 35-40.
Abstract:
A novel algorithm based on the spatial third-order cumulants is presented. This algorithm is independent of the coherence of signals and the correlaton of the additive noises with high resolution. The simulation results demonstrate the effectiveness ...
A novel algorithm based on the spatial third-order cumulants is presented. This algorithm is independent of the coherence of signals and the correlaton of the additive noises with high resolution. The simulation results demonstrate the effectiveness ...
1992, 14(1): 41-49.
Abstract:
A large-signal model for GaAs FET is derived based on its small-signal S parmeter and DC characteristics. The harmonic balance algorithm is applied to analyze and optimize the FET fundamental and harmonic oscillators, and the values of steady current...
A large-signal model for GaAs FET is derived based on its small-signal S parmeter and DC characteristics. The harmonic balance algorithm is applied to analyze and optimize the FET fundamental and harmonic oscillators, and the values of steady current...
1992, 14(1): 50-60.
Abstract:
By applying hypergraph theory, algorithm RFCMHGT is presented fordetermining the realizability of a given directed fundamental cutset matrix Qf and synthesizing its corresponding directed graph G layer by layer from its tree path submatrix Qfp. Its p...
By applying hypergraph theory, algorithm RFCMHGT is presented fordetermining the realizability of a given directed fundamental cutset matrix Qf and synthesizing its corresponding directed graph G layer by layer from its tree path submatrix Qfp. Its p...
1992, 14(1): 61-70.
Abstract:
The mathematical model of spaceborne SAR systems and its computer simulations are described. Results of computer simulations about range migration, range migration correction, azimuth weighting and azimuth signal generation/processing are given. This...
The mathematical model of spaceborne SAR systems and its computer simulations are described. Results of computer simulations about range migration, range migration correction, azimuth weighting and azimuth signal generation/processing are given. This...
1992, 14(1): 71-75.
Abstract:
A new method, panel method, for Radar Cross-Section (RCS) computations of arbitrarily complicated objects is put forward based on the work by D. Klement et al. (1988). The method has a high speed for calculation, and is convenient for application. By...
A new method, panel method, for Radar Cross-Section (RCS) computations of arbitrarily complicated objects is put forward based on the work by D. Klement et al. (1988). The method has a high speed for calculation, and is convenient for application. By...
1992, 14(1): 76-80.
Abstract:
Monte Carlo method is used to simulate the whole courses of electronictransportation, collision and secondary emission in a single channel of MCP. The energy distribution formula of secondary electron of MCP is derived. Each parameter of a single cha...
Monte Carlo method is used to simulate the whole courses of electronictransportation, collision and secondary emission in a single channel of MCP. The energy distribution formula of secondary electron of MCP is derived. Each parameter of a single cha...
1992, 14(1): 81-85.
Abstract:
A new iterative method for signal restoration has been presented. Anestimate operator Wk that is related to error operator Bk in the restoration process is introduced to decrease the estimate error and increase the convergence rate. The effect of noi...
A new iterative method for signal restoration has been presented. Anestimate operator Wk that is related to error operator Bk in the restoration process is introduced to decrease the estimate error and increase the convergence rate. The effect of noi...
1992, 14(1): 86-91.
Abstract:
The matrix direct product is generalized and two kinds of direct products are given by Wang Zhongde (1989). These two kinds of direct products are applied to the construction of orthogonal transforms. In this paper, Wang Zhongde s work is generalized...
The matrix direct product is generalized and two kinds of direct products are given by Wang Zhongde (1989). These two kinds of direct products are applied to the construction of orthogonal transforms. In this paper, Wang Zhongde s work is generalized...
1992, 14(1): 92-95.
Abstract:
A new 8 mm high-performance sum-frequency upconverter is described. Ttsconversion loss is 2.9 dB; its output power is 1.34mW at 1 dB compression point. As the power of sum-frequency signal below 1mW, the upconverter shows a very good linearity. Sum-f...
A new 8 mm high-performance sum-frequency upconverter is described. Ttsconversion loss is 2.9 dB; its output power is 1.34mW at 1 dB compression point. As the power of sum-frequency signal below 1mW, the upconverter shows a very good linearity. Sum-f...
1992, 14(1): 96-100.
Abstract:
Continuously tunable 75-110 GHz Gunn Oscillators have been developedwith WT 57 GaAs diodes. In most cases, the oscillators can offer 10-20 mW output power over a bandwidth of 10-15 GHz. The characteristics of bias electronic tuning are tested using t...
Continuously tunable 75-110 GHz Gunn Oscillators have been developedwith WT 57 GaAs diodes. In most cases, the oscillators can offer 10-20 mW output power over a bandwidth of 10-15 GHz. The characteristics of bias electronic tuning are tested using t...
1992, 14(1): 101-105.
Abstract:
A novel two way rotary junctor is presented. One way of the rotarv junctor is designed at S band, and another way is designed at P band. The VSWR for S band rotary junctor is less than 1.2 in the 1.2-4.4 GHz frequency range. A reentrant resonant cavi...
A novel two way rotary junctor is presented. One way of the rotarv junctor is designed at S band, and another way is designed at P band. The VSWR for S band rotary junctor is less than 1.2 in the 1.2-4.4 GHz frequency range. A reentrant resonant cavi...
1992, 14(1): 106-109.
Abstract:
A fast computing scheme for the mement method with entire domain bases used for solving integral equations arisen in antenna radiation and scattering is proposed. By using this scheme, the computing time required to evaluate the generalized impedance...
A fast computing scheme for the mement method with entire domain bases used for solving integral equations arisen in antenna radiation and scattering is proposed. By using this scheme, the computing time required to evaluate the generalized impedance...
1992, 14(1): 110-112.
Abstract:
A new single-amplifier switcbed-cap acitor filter using unity-gain amplifier is presented. When used for the relation of high Q bandpass characteristic, the circuit can obtain much less capacitor spread, and its capacitor spread, compared with other ...
A new single-amplifier switcbed-cap acitor filter using unity-gain amplifier is presented. When used for the relation of high Q bandpass characteristic, the circuit can obtain much less capacitor spread, and its capacitor spread, compared with other ...
