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PSO-De jong cod for matlab

Function Toolbox hope u like it

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.)

相干信号的DOA估计，MUSIC算法与MMUSIC算法的测向功能对比(DOA estimation of coherent signals, compared with MMUSIC algorithm MUSIC algorithm finding function)

我自己编写的用遗传算法寻找KSW最佳二维阈值，搞噪效果很好。(I prepared using genetic algorithm to find the best 2D Threshold KSW, engage in noise with good results.)

在本文中，我们将比较数字滤波器与模拟滤波器，讨论各种数字滤波器架构，并通过一个范例一步一步说明如何设计FIR(非递归)滤波器。(The design of FIR filter )

天线相位中心偏差变化及改正模型对精密单点定位精度的影响(Antenna phase center offset correction model changes and precise point positioning accuracy of)

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calculates the signal to noise ratio in each subchannel

不同光纤长度色散对光波的影响分析.对于50km，100km 和150km光纤进行了色散分析。(Different fiber length dispersion impact on optcal signal)