IUST-v23n1p43-fa

我们自己作出的一个function形式的函数，请您作为子函数调用，谢谢支持 (our own form of a function of function, as you please call Functions, thank you support)

基于六自由度飞行动力动力学方程，计算火箭外弹道。(ased on the dynamics equation of flight dynamics of six degrees of freedom, the exterior ballistics of rocket is calculated.)

说明：  图像二值化C程序，供matlab M文件调用，图像模式识别前预处理第一步骤(Binarization C procedures, calling for the matlab M documents, images, pre-first step before pattern recognition)

说明：  用MATLAB实现（7，3）循环码算法，很好的体现了循环码的特性(Using MATLAB implementation (7,3) cyclic code algorithm shows good characteristics of cyclic codes)

说明：  提出了正交频分复用(O FDM ) 系统中一种新的载波频偏估计算法L 载波频偏估计过程可分 为获取和跟踪, 其中, 获取过程和时间同步是同时完成的L新算法可实现的最大载波频偏获取范围 是整个信号带宽的一半L新的跟踪算法是一个最大似然算法, 在加性白噪声高斯信道(AW GN ) 下, 当N (训练序列长度的一半) 等于128 时, 其性能比Schm idl 算法提高约7127 dB 在多经信道下, 当 信噪比不是很高时, 新算法仍具有优势L(new carrier f requency offset est imat ion scheme in o rthogonal f requency division mu lt ip lex ing (O FDM ) system is p ropo sed. The carrier f requency offset est i2 mat ion includes acqu isit ion and t rack ing, and acqu isit ion as w ell as t im ing synch ro2 n izat ion can be perfo rmed simu ltaneou sly w ith h igh accu racy. The max imum acqu i2 sit ion range can be up to one half of overall signal bandw idth. The p ropo sed t rack2 ing est imato r is a max imum 2likelihood est imato r, and in AW GN channel, abou t 7127dB imp rovemen t is ob tained compared to the Schm idl’s algo rithm w hen N = 128 in mu lt ipath channel, the p ropo sed algo rithm wo rk s w ell at moderate SNR.)

虚拟天线阵列波束成形，运用了LCMV算法，仿真了有用信号和干扰信号的零陷图，对初学者很有用，(Virtual antenna array beam forming, Using the LCMV algorithm，Simulation of useful signal and interference signal zero figureuseful for beginners.)

基于 matlab 用主元分析对半导体数据进行处理，进行相似度的匹配(Matlab using principal component analysis based on semiconductor data processing, the similarity matching)

说明：  Mathieu函数工具箱，在弹性波波场分析中一个很有的工具(Mathieu Functions Toolbox v_1_0)

Maximum Likelihood Local search scheme: Newton-Raphson algorithm

用于2D图像的Encoder，Decoder(a JPEG Decoder for 2-D image,contain the jpeg file which needed)