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QPSK在加性高斯白噪声环境下，信噪比和误码率的仿真。 先产生一个四组符号的序列，再将该序列映射到对应的相位上。用相应的函数产生均值为零、方差为δ2的加性高斯噪声。 (QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation. First group have a four symbols of sequence, then this sequence mapped to the corresponding phase on. With the corresponding function have zero mean and variance of 未2 additive white Gaussian noise.)

integral and differensial in MATLAB

Laguerre自适应滤波器源代码(Laguerre adaptive filter source code)

ofdm.m为主程序，可以运行，将得到迭加噪声之后的误码率曲线，并与理论QPSK加高斯白噪声误码率曲线比较，两者将重合(ofdm.m-based program, you can run, will be after the noise superposition error rate curve, and with the theoretical QPSK plus white Gaussian noise bit error rate curves, which will coincide)

matlab的经典算法程序。包括差值拟合与规划问题；绘图；数据分析与解方程等。还有ppt说明。(classic algorithm matlab program. Including the difference between the fitting and planning issues drawing data analysis and solution of equations and so on. There ppt instructions.)

说明：  可以纠正三个错误的bch码，在不同的SNR下，给你系统仿真曲线。(To correct three errors bch code, at different SNR, the simulation curve for you.)

用Simulink方式设计一个单边带传输系统并通过声卡输出接收机解调的结果声音(To design a single-sideband transmission systems using Simulink and through the sound card output receiver demodulation results of sound)

气象学中利用butter-worth滤波，并且计算标准差(butter-worth filter and calculate the standard deviation)

LCL filter Model m file

pri变换分选算法仿真实现，改进经典PRI变换算法(PRI transformation algorithm)