最新刊期
卷 ， 期 4 ， 1986
- 摘要：<正> 根据《电子学报》编委会决定,本刊就电子学界关心的或近几年发展迅速的领域,每年试出一期专辑。当然这并不意味着它将能代替相应的专业学报和汇刊。信息论专辑是本刊的初次尝试,期望得到读者们的支持和批评。 在我国信息论学科所包含的范围基本上与以IEEE信息论专业组为代表的外国同事们所从事的研究工作相同。中心部份是Shannon理论（包括多用户理论）,信道和信源编码理论与编译码的实现;判决和估计理论既是理解和应用信息论的基础,在我国又是信息论的中心部分（信号检测及其参量的估计）。非中心部分是以信息论为指导的应用技术,例如调制2|24|0更新时间：2025-12-08
- 摘要：<正> In Ghina the field of information theory essentially covers the areas of research of IEEE IT Group members or our U. S. colleagues. The central areas are Shannon theory （including multi-user information theory）, channel and source coding theory and the implementations of encoding and decoding: decision and estimation theories are prerequisite knowledges for understanding information theory, but we also consider them as2|8|0更新时间：2025-12-08
- 摘要：In this paper, encoding and decoding of Reed-Solomon codes using dual basis are considered. Using bit-serial-multiplication, the complexity of encoder and decoder is greatly reduced.2|120|3更新时间：2025-12-08
- 摘要：A tutorial presentation of the arbitrarily varying channel is given. The emphasis is on the interpretation as a model for the jamming problem.2|33|0更新时间：2025-12-08
- 摘要：Some new developments for Shannon information theory and multiple user information theory are surveyed. Many network communication models and their coding problems are presented. The focus is put on varying channel, multi-user channel, correlated sources and the sources and/or channels with side information, feedback and distortion.2|361|1更新时间：2025-12-08
- 摘要：The lower bound of the probability of error estimation was presented by Bahadur. In this paper its upper bound and another proof of the lower bound are presented. Then rate distortion theory is obtained by using Neyman-Pearson theorem.2|67|0更新时间：2025-12-08
- 摘要：Using graph theory, an achievable region of the uniquely decodable codes for the 3-user 2N-frequency noiseless multiple-access channel with intensity information is obtained. This achievable region is much larger than that for the time sharing system.2|16|0更新时间：2025-12-08
- 摘要：A definition of the exponent B（d） of the probability for correct estimation is given, and a Chernoff’s bound of the probability of correct estimation is obtained by using the exponent in the case of both random and nonrandom parameters.2|176|1更新时间：2025-12-08
- 摘要：In theory of error-correcting codes and in cybernetics, it is often required to find the shortest-length linear shift-register, which will generate given multiple sequences. An iterative algorithm for this problem has been previously presented by the authors. But that algorithm needs to calculate inverse elements in a field. In this paper, an inversionless iterative algorithm for multisequence shift register synthsis is presented.2|23|0更新时间：2025-12-08
- 摘要：<正> 一种设计沟长为2μm的先进,高性能硅栅CMOS逻辑电路系列74AC,最近由中国科学院上海冶金研究所在上海无线电十九厂协作下研制成功,并于去年10月通过技术鉴定。这种目前国际上尚处于研制阶段的新一代逻辑电路系列的问世,标志着我国逻辑电路技术已发展到新的阶段。 该电路采用了一系列先进的MOS LSI VLSI工艺:2μm的设计规则、正胶光刻、反应离子刻蚀、薄栅浅结、全离子注入以及尽可能避免可控硅效应的新型MOS结构等。新电路2|6|1更新时间：2025-12-08
- 摘要：The generalized threshold Chase algorithms called GTCⅠ, GTCⅡ, STC and fast soft decision error trap decoding are suggested. The fundamentals and speed of decoding of these algorithms are discussed. The speed of these algorithms is faster than that of original Chase algorithms and the decoding error is almost the same probability as the Chase algorithms. By computer simulation, the performance of the generalized threshold Chase algorithms is compared with that of Chase algorithms for（15,7、5）binary BCH codes.2|136|15更新时间：2025-12-08
- 摘要：The correlated random variables can be mapped into uncorrelated form by using a linear transformation. On this basis, a design method of an optimal vector compandor with least mean square error criterion is derived. The nonlinear companding function is the error function with a scaled coordinate system for the Guassian source. It is shown that the limiting information rate is the Shannon’s lower bound of the memoryless Gaussian source.2|27|0更新时间：2025-12-08
- 摘要：This paper discusses the difficulty in cryptoanalysing the cryptosystem using binary sequences generated by several linear feedback shift registers with nonlinear combination logic as the keysystem. The concept of linear statistical independence is defined for the combination function. It is the first attempt of the author to use Walsh functions and spectrum analysis in studying this problem.2|42|16更新时间：2025-12-08
- 摘要：Generalization of the M public key system and the Ms public key system combined with error correcting is proposed, The performance of M and Ms public key systems are analysed. It is shown that the probability of correct decipher and security of Ms is better than that of the M public key systems in noisy channel, and therefore the crytosystems combined with error correcting have more advantages and can open up broad prospects for applications.2|81|26更新时间：2025-12-08
- 摘要：A new public key cryptosystem-quadratic knapsack scheme is demonstrated. Its security is investigated and compared with the known crypt oattacks on knapsack cryptosystems.2|55|18更新时间：2025-12-08
- 摘要：The m-seqnence’s runs, component sequences and vector sequences in Galois Field are discussed. The runs of n - 1 zeros have equivalent intervals, and the component sequences are m-sequences in the prime field. And the vector sequence’s linear complexity, minimal polynomial, period and self-correlation function are derived.2|41|4更新时间：2025-12-08
- 摘要：An effective algorithm is derived for attacking on a special class of the Boolean public key cryptosystem of the second order, and all the operations are bounded by O（n7）. The idea of evaluating a cryptosystem by the spectral analysis method is presented.2|39|0更新时间：2025-12-08
- 摘要：The coding seriel for Chinese character information processing systems （CCIPS） resulted from coding series of present computers are described. The internal processing coding series of information processing systems for Han Nationality charater and it’s design method are discussed in detail. The similar ones for minority nationality characters in China are also discussed breifly.2|24|1更新时间：2025-12-08
- 摘要：An interferometric modulator with Ti-diffused LiNbO3 weveguide has been fabricated.Measurements are made at the optical wavelength of 0.6328 μm. The results are as follow: π phase voltage 5.3V, maximum modulation degree 97.6%, capacitance 9 pF and 3 dB bandwidth 700 MHz. The response characteristics are measured at different bias voltages using the sine wave signal of 300 kHz.2|25|2更新时间：2025-12-08
- 摘要：The SIMCDL is a simulation system implemented on a domestic minicomputer system. The hardware description language is based on CDL （Computer Design Language）. The whole system is written in Fortran. The calculation of the labels is optimized by several new means and some advanced software techniques, such as minimum perfect hashing function etc., are included.2|12|1更新时间：2025-12-08
- 摘要：An application of pan-boolean algebra in the switching circuits is discussed.2|119|31更新时间：2025-12-08
- 摘要：The Trick’s iteration formula X0（j+ 1） = ∫0（j+1）r∫（x,t） dt + x0（0）is discussed, and two careless omissions made in ref. [2] are pointed out.2|8|0更新时间：2025-12-08
- 摘要：The TEM wave in multi-conductor equal straight transmission lines with arbitrary cross sections is discussed. The analytical structures of the solution of the wave field and general analytical solving method are given. The general theoretical formula is developed for the characteristic impedance of the transmission line consisting double conductors containing each other.2|93|0更新时间：2025-12-08
- 摘要：By means of theoretical analysis, computer calculation, experimental test and evaluation of modulation transfer function, the object of main lens in camera tube is found to be cross-over and not aperture. The aperture only acts as limiting diaphragm.2|7|0更新时间：2025-12-08
- 摘要：Some formulas describing the relationship between 2-D laplace and Z transforms are derived. They include the transforms from 2-D Laplace’s to Z’s, or rice-versa.2|128|0更新时间：2025-12-08
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