Fig215_ErgodicCapacityVsNumberOfAntennas

lte vs wimax the way lte differs from the wimmax

能实现图片、文字的连续滚动效果。滚动的方向可控制（上、下、左、右）。(To achieve images, text, effects of continuous rolling. The direction of rolling can be controlled (up, down, left, right).)

说明：  这是一个可以手动点击图片上任意一个点的时候，可以查看该点的亚像素坐标，精确到0.0001(This is a can manually click on the picture when any one point, you can see the point of the sub-pixel coordinates, accurate to 0.0001)

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.)

在802.16e的系统中，仿真分析AWGN，瑞利衰落信道中的LDPC码的性能。程序中包括编译码的程序。(In 802.16e systems, simulation analysis AWGN, Rayleigh fading channel the performance of LDPC codes. Program, including encoding and decoding process.)

单边简支梁有限元程序,MATLAB，希望对大家有用，详细介绍见英文和下载文档中的WORD文档(In the provided MATLAB software, we consider the following example shown in the figure. The beam ABC is clamped at the left side and simply supported at the right side. Dimensions are in m, forces in N and loading p in N/m. Also . At x=12m, and . Find the deflections, shear forces and moments.)

自己利用正四面体的空间麦克风阵列，实现空间三维信号定位，算法有一定抗干扰能力(Own microphone array using regular tetrahedron space, space is three-dimensional signal positioning algorithm has some anti-jamming capability)

霍夫曼编码的具体方法：先按出现的概率大小排队，把两个最小的概率相加，作为新的概率 和剩余的概率重新排队，再把最小的两个概率相加，再重新排队，直到最后变成1。每次相 加时都将“0”和“1”赋与相加的两个概率，读出时由该符号开始一直走到最后的“1”， 将路线上所遇到的“0”和“1”按最低位到最高位的顺序排好，就是该符号的霍夫曼编码。(Specific methods Huffman coding: the probability of emergence of the size press line, the two smallest sum probability, as a new probability and the probability of re-queue the remaining, then the minimum of two probabilities are added, and then re-queue, until finally become one. Each time the sum will be 0 and 1 Fu added two probabilities, when read by the symbol has come to begin the final 1 , the route will encounter a 0 and 1 at the lowest to the highest bit of the right order, that is the symbol of the Huffman coding.)

这是原始的matlab扩展有限元程序，包括裂纹，夹杂分析，简单易懂(matlab for XFEM)

说明：  lcmv程序，抗干扰能够自适应形成零陷，有波束图。(LCMV program, anti-jamming can form a self-adaptive null, beam pattern.)