chebyshev_interp

三维射流网格、速度剖面坐标变换显示、基于matlab 的图形显示。 (to show the velocity profile and its grid.)

这是一个matlab中的一个非常实用的软件，值得一下·里面详细介绍了anfisedit 怎么操作，还有程序运行的结果，当然还有源代码，对于研究模糊推理的人员有帮助(This is a matlab in a very practical software, worth about which details how anfisedit operation, as well as the results of running, of course, the source code for research staff helpful fuzzy inference)

一个OFDM符号128个有效符号，插入128个虚拟子载波 符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol 输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64 (128 of an OFDM symbol of a valid symbol 128 inserted virtual sub-carrier Symbol rate (the effective data rate) fsymbol sending rate (including virtual subcarriers) 2fsymbol Of the input data needs to be 2 times the transmission data rate, in order to carry out the interpolation, to achieve the bit timing tracking, i.e. four times the sampling rate modulation signal fsymbol OFDM symbol Nfft = 128 points One OFDM symbol data points nfft* 2 = 256, the Guard Interval dot = Ng* 2 = 64)

说明：  AWGN信道下高斯噪声干扰下GPS编码译码系统性能仿真，同时进行了误码率的仿真(AWGN channel Gaussian noise jamming GPS system performance codec simulation, at the same time the BER simulation)

windows图像编程处理类库，用于实现各种图像处理功能(programming windows image processing library, used to achieve a variety of image processing functions)

matlab 编写的指纹识程序 附有指纹图片(Fingerprint identification)

L1范数正则化最小二乘问题求解器，stanford大学Boyd教授出品。(Simple Matlab Solver for l1-regularized Least Squares Problems)

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.)

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This is a matlab version of Fisher linear discriminant classifier