最新刊期
卷 ， 期 1 ， 1992
- 摘要：The number of stable points is a key measurement of the capacity of neural network’s associative memory. New results about the distribution of the stable points of binary associativ Hopfield neural networks are presented in this paper.关键词：hopfield neural network;Stable point;Associative matrix;Error-correcting encoder3|35|2更新时间：2025-12-08
- 摘要：A reconstruction algorithm of layered acoustic impedance profile has been established in this work. The thickness of the multi-layer medium to be reconstructed can be less than 50μm. The validity of the algorithm has been proved by computer simulation experiment results. In this paper, two deconvolution methods have been adopted and compared. One of them is called Wiener filtering and the other is called correlation method. To improve the resolution and the precision of the reconstruction, an after deconvolution processing method, namely, the moving threshold peak detection technique has been established. The simulation results also show that this impedance reconstruction algorithm can be performed in a high frequency situation （up to 18MHz） and the 48μm axial resoluton has been obtained.关键词：分层介质;声阻抗图重建算法;解卷;仿真实验;高分辨率2|98|3更新时间：2025-12-08
- 摘要：Color mixture of fluorescent powder is one of the main factors which influence the certified product ratio in color picture tube production. In this paper, the factors causing color mixture are analyzed. The four types of color mixture, i.e. green fluorescent powder remainder, deviation, cover and grain, are analyzed and simulated on computer. Then, a color mixture detecting algorithm of flourescent powder based on the searching with direction array is proposed. Finally, simulation results on DPS-8/52 computer system show that the proposed algorithm has the advantages of high correct detecting probability, strong antinoise ability and high speed.关键词：Fluorescent powder coating;Color confusion detection;Color kinescope;Direction array2|23|0更新时间：2025-12-08
- 摘要：In this paper, the definition, basic problems and solution of two-parameter hidden Markov processes are given, and a method for Chinese character recognition is proposed.关键词：Two-parameter Markov process;Chinese character recognition2|56|3更新时间：2025-12-08
- 摘要：With the increasing demand for the performance of the speech processing system, it is becoming more and more important to investigate the speech mechanism on auditory system. In this paper, the nonlinear motion equation and the corresponding state space equation of the cochlea are established, and the Volterra functional series method is firstly used to obtain the analytic solution in frequency domain which may be arbitrarily closed to the accurate one. Moreover, it is proved that the method in Reference [1] is the special case of our method, therefore, the analysis method proposed is of generality.关键词：Cochlear mechanics;Auditory system;Nonlinear dynamics;modeling2|95|2更新时间：2025-12-08
- 摘要：In this paper, a new queuing model, M1xl……Msxs/G/n（NP）, is set up whichis approaching the practical situation of BISDN. A mathematical analysis has been conducled according to the diffusing-approximation method with the model.关键词：Broadband Integrated Services Digital Network （BISDN）;queuing model2|90|2更新时间：2025-12-08
- 摘要：Because packets arriving to the B-DMB switch are unscheduled, 2 or more packets may arrive at the same output in a time slot, making queueing unavoidable. The buffer length and mean packet delay of the B-DMB switch are calculated in this paper, and some valuable results are obtained.关键词：Switch;Packet delay;Baffer length2|24|1更新时间：2025-12-08
- 摘要：An automatic image segmentation method applied to real-time image tracking in complex environment is proposed. In accordance with the variance of scenes, this method can adaptively make alternate use of two work modes based of scene complexity: thresholding and hierarchically clustering. Meanwhile it suppresses the interruption of background noise as much as possible. Experimental results show that the presented approach is comparable in segmentation performances to several segmentation method currently considered as better ones, but its adaptability and usable range are much superior to, and its computing cost is usually lower than the latter.关键词：I mage tracking;Sequence image analysis;Segmentation;adaptive processing;Guidance2|47|3更新时间：2025-12-08
- 摘要：In this paper, the weakness of several fast search algorithms is analysed and a new search algorithm called two dimention genetic optimizer algorithm （2-D GOA） is proposed based on global optimization. The computer simulation shows that the performance of 2-D GOA is better than that of other methods.关键词：Sequence image coding;Displacement estimation;Genetic optimizer algorithm2|39|2更新时间：2025-12-08
- 摘要：This paper introduces the features and functions of DSP chips and their development support, especially describes the development/high speed processing board and software of TMS320 family which is designed by the Institute of Acoustics, Academia Sinica. Some examples of using DSP in communication engineering are also involved.关键词：Digital signal processor （DSP）;Application for communication engineering2|356|1更新时间：2025-12-08
- 摘要：A new edge detection algorithm based on a Markov random field and a Boltzmann machine is described, where both gray-level information and local edge structures are included. It mainly consists of two steps: （1）Estimation of model parameters using the Boltzmann machine; （2）An iterative search algorithm based on the Boltzmann machine. Experimental results are given to verify the reliability of the proposed method.关键词：Image lable;Markov random field;Boltzmann machine;edge detection;parameter estimation;search algorithm2|127|2更新时间：2025-12-08
- 摘要：This paper puts forward the recursive algorithm based on the two-channel lattice identification for ARMA model. Computer identification test shows that this algorithm has excellent identiftcation properties.关键词：ARMA model;Lattice filter;identification2|43|1更新时间：2025-12-08
- 摘要：Based on the copy theory of Walsh Functions, a new method of generating or constructing Generalized Walsh Functions using cycle-right-shift copying and generalized sequence-shift copying is proposed.关键词：沃尔什函数;Chrestenson函数;广义平移复制;循环右移复制2|46|2更新时间：2025-12-08
- 摘要：In this paper, Tri-state adaptive delta modulation is presented for the first time. By simulations of image coding and filtering,it is proved that the dynamic range of Tri-state ADM is 6～10dB larger and the signal-to-noise ratio is 1.5～3.5dB better than conventional Two-state ADM while its filtering without multiplication is maintained.关键词：Tri-state;Adaptive delta modulation （ADM）;Image coding2|14|1更新时间：2025-12-08
- 摘要：In this paper, we study a new model of neural network with importance emphasizing for associative memory. It shows by a great number of computer modelling results that the network is much better than Hopfield’s. It can also be better than Y.C. Lee’s higher order correlation network if with a larger emphasizing parameter P.关键词：Neural network;High order correletion;associative memory2|47|2更新时间：2025-12-08
- 摘要：The principle, circuit structure and experimental results of a new analogue adaptive notch filter （ANF） are introduced. This analogue ANF is evolved from the same type digital ANF. It features simplicity in structure, easiness for adjustment and fine performance, suitable not only for filtering tingle frequency interference, but also filtering complex waveform interference.关键词：Analogue;adaptive;Notch filter2|194|1更新时间：2025-12-08
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