最新刊期
卷 ， 期 1 ， 1984
- 摘要：It is known from[1] that using multiple subsets of consecutive syndromes, the coefficients of an error location polynomial may be obtained by solving a set of linear equations for the BCH codes with generalized bound. An iterative algorithm is introduced, which can compute a shortest-length linear shift-register that will generate multiple sequences. It generalizes the Berlekamp-Massey algorithm, and simplifies the finding of the coefficients of an error location polynomial for the BCH codes with generalized bound.2|17|0更新时间：2025-12-08
- 摘要：The Electron Cyclotron Resonance Maser with Quasi-Optical Cavity （ECRMQ） has been analysed systematically and series new conclusions have been achieved in this paper. Making use of the linearized Maxwell-Vlasov equation, the kinetic theory of ECRMQ has been worked out. Various schemes including those presented in this paper for building ECRMQ were investigated and the beam to weve interaction power, starting current and frequency shift for each of these schemes have been formulated; the high modes operation, and the field polarization were also discussed. A set of important problems concerning the ECRMQ have been analysed and discussed in detail. It is indicated that the ECRMQ has a lot of important characters and these new schemes presented in this paper are of significance.2|73|23更新时间：2025-12-08
- 摘要：This paper stuties clutter rejection of the moving target detection （MTD） radar and proposes the average improvement factor as a measure of the performence of a MTD processor. Several kinds of equipment with different structures are compared. Some importent points are put forward, to which sufficient attention should be paid when a MTD processor is to be constructed.2|148|6更新时间：2025-12-08
- 摘要：The routing algorithm adopted by the communication software of a distributed computer network is of great influence on communication efficiency, thus having direct bearing on system performances. This paper presents a routing algorithm called GUIDEPOST, which is not only simple and efficient but also independent of the network topology. Having been im-plemented on our ZCZ distributed computer system, GUIDEPOST has proved to be a better choice for the communication software of distributed microcomputer systems.2|31|0更新时间：2025-12-08
- 摘要：A new digital convolution method based on FNT-WFTA compound algorithm is presented, which is suitable for applications involving large pulse outputs such as in the pulse compression of radar signals. The advantages of this method are shown by theoretical analysis and computer simulation. With basically the same input dynamic range, this method’s convolution length and peak value can be N2 （Where N2 is the length of WFTA）times those of FNT without overflow, the number of times for multiplication is only 40% and 60% of those of FFT and WFTA respectively, but the output amplitude （unweighted） is basically the same.2|33|0更新时间：2025-12-08
- 摘要：Calculation of the aberration coefficients Mij and Fij has been carried out for the equidiameter coaxial double cylinder electrostatic lens by non-paraxial electron trajectories. Using the values of Fij, the 3rd order asymptotic spherical aberration coefficients are calculated with a disagreement less than 5% in comparison with that of spherical aberration coefficient integral.2|23|0更新时间：2025-12-08
- 摘要：N/4, 2N/4 and 3N/4 circular shift-invariant power spectrums on sequency for a periodic sequences of N = 2p are proved. A generalized expression on all possible values of 2x （x∈{0, 1, …p}） circular shifts of discrete Walsh function with Hadamard order for N = 2P is proposed.2|16|1更新时间：2025-12-08
- 摘要：Different forms of system models are used to tackle the power spectrum analysis of PN code digitally modulated waves and simple expressions are derived, Based on this, the spectra of the complex codes are analysed and discussed.2|46|0更新时间：2025-12-08
- 摘要：Based on the ground circuits and superposed circuits of first-order active R filters, and by matching these circuits through feedback, twenty-two types of circuits of second-order active R filters were obtained, of which 8 types of circuits have not been issued so far.2|130|6更新时间：2025-12-08
- 摘要：With various parasitic capacitors and the bulk effect of the threshold voltage of MOSFET in consideration, a quantitative expression is derived for the sensitivity of S/R amplifier in LSI single-transistor-cell DRAM as a function of the materials, technology and circuit parameters. The formula is checked by detailed computer simulation and good agreement is achieved for a wide range of node capacitance values. The new expression is expected to be useful in engineering design, pointing out the ways to improve the amplifier’s limit sensitivity.2|16|0更新时间：2025-12-08
- 摘要：A method is provided for the solution of eigenvalue equations of three-dimensional rectangular waveguides. The method takes account of the absorption effect of every medium layer in the waveguide, and poses no limitation on the absorption intensity. Calculations based on this method are made for several kinds of GaAs/AlGaAs rectangular and ridge waveguides, and theoretical results are obtained about their optical properties.2|37|0更新时间：2025-12-08
- 摘要：A mothed has been derived based on that the DC field will be applied exactly perpendicular to the RF magnetic field in the ferrite sample, which improves the characters of the microstrip as well as the film lumped element circulators. The design model of the applied non-uniform permanent magnetic field is discussed in this paper and the simple version is also given.2|29|0更新时间：2025-12-08
- 摘要：In this paper the concept of ability order of learning machine is introduced and a model of second order learning machine is given. The model is simulated by software in IBM-370 computer. Other problems about the learning machine are discussed.2|14|1更新时间：2025-12-08
- 摘要：On the large number of reliability test statistic data, the selection technology, reliability evaluation and failure mechanism of RC electronic components are analysed and discussed. For several important questions in the recent reliability work, this paper puts forward some suggestions.2|103|0更新时间：2025-12-08
- 摘要：A fast discharge rare gas halide excimer laser with symmetric geometry pumped by glued and hot pressed capacitor is introduced. Laser beams with good spatial symmetry are obtained. By the device, lasings at N, 3371A, XeF 3488,3510 and 3532A and KrF 2484A were achieved. Detailed experimental results on the XeF system are also given.2|25|0更新时间：2025-12-08
- 摘要：Two expressions of the first kind of dyadic Green’s function for coaxial cavity are derived by the methods of eigenfunction expansion and scattering superposition in detail, and the results obtained by these two different methods are shown to be equivalent.2|44|8更新时间：2025-12-08
- 摘要：A Scheme of high-speed real-time DFT operation is presented for processing radar signal. It may be used to calculate the 8, 16 or 32-point DFT. When 10 MHz clock frequency is used, the operation time per point is about 4μs for the complex signal input sequence of 16 bits in word-length. Under a fixed time-domain weighting adopted, it does not require more equipment or additional operation time. The control circuit is very simple. The shorter the word length of the input sequence, the faster the operation speed.3|26|0更新时间：2025-12-08
- 摘要：The theoretical and experimental results of a nonreciprocal H plane dielectric-loaded H plane ferrite phase shifter are presented, including the approximate formula of differential phase shift and the transcendental equation of differential phase shift frequency response with zero slope. The results show that this kind of dielectric-loaded technique makes it possible to increase the differential phase shift and the figure of merit, and fabricate devices with wide band and higher average power.2|39|5更新时间：2025-12-08
- 摘要：The construction and calculation results of a hyperboloidal field of unipotential electrostatic lens with low spherical aberration is presented, by which the performance of the electron optical system of the field emission gun can be easily improved.2|19|0更新时间：2025-12-08
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0