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this is the code to determine frequency of spoken speech

说明：  三相逆变器simulink 仿真，很好用的 大家可以参考一下 ，希望有帮助(Three-phase inverter simulink simulation, we can use a good reference, want to help)

说明：  数学建模在的插值问题的求解，主要用于解决测量问题，如水道测量(Mathematical modeling in solving the problem of interpolation, is mainly used to solve measurement problems, such as water measurement Road)

完成改进的遗传算法,其中用的是免疫机制.(Completion of an improved genetic algorithm, in which immune mechanism is used.)

扩频通信中的gold序列特性仿真研究。(1) 利用MATLAB编程产生Gold序列族；给出每个序列的一个周期的输出； (2) 根据平衡Gold序列产生方法，产生Gold序列族中的所有平衡序列，每个序列给出一个周期的输出； (3) 计算(1)中Gold序列自相关函数，并画出它们的自相关曲线； (4) 计算(2)中Gold序列互相关函数，并画出其中某一序列与其他序列的互相关曲线； (Sequence Spread Spectrum Communication Simulation of gold. (A) the use of Gold sequences generated MATLAB programming given a cycle of each sequence output (2) The balance of Gold sequence generation method to produce Gold sequences of all balanced sequences, each sequence gives a cycle output (3) computing (1) Gold sequence autocorrelation function, and draw their autocorrelation curve (4) computing (2) Gold sequence cross-correlation function, and draw in which a sequence with other sequences cross-correlation curve )

UED数字图像隐写算法，自适应隐写算法代码(UED digital image steganography algorithm, adaptive steganography algorithm code)

说明：  利用MATLAB可以产生各种形式的随机数，进行随机解决一些实际问题（系统的寿命、重积分、预测公司经营）(using MATLAB can produce various forms of random numbers, random solve some practical problems (system of life, re-integration, the company forecast operating))

SPWM MATLAB/simulink仿真模型，希望感兴趣的同学相互交流 (SPWM MATLAB simulation program, hope that those interested in mutual exchange )

说明：  进行潮汐调和分析，计算各分潮的调和常数，判断该站点的潮汐类型，并预报未来潮高。(Through tidal harmonic analysis, the harmonic constants of each constituent tide are calculated, the tidal types of the station are judged, and the future tidal heights are forecasted. Conducting tidal harmonic analysis)

自适应阵列处理，阵列信号处理的经典教材，做雷达，声纳，传感器阵列(Adaptive array processing, array signal processing classic textbook, do radar, sonar sensor array)