00021004

扩频通信系统仿真 ——系统将基带信号（即信息）的频谱扩展至很宽的频带上，然后再进行传输，即将欲传输的信息数据用伪随机序列编码调制，实现频谱扩展，然后通过信道编码发送出去；接收端采用与发送端完全相同的伪随机序列作为本地解扩信号进行相关处理，以恢复信息，最后进行解调，完成整个系统的接收。(Simulation of spread spectrum communication system- the system baseband signal (ie, information) be extended to a wide spectrum of frequency bands, and then transferred, will want to use transmitted information data sequence of pseudo-random code modulation, to achieve expansion of the spectrum, and then sent channel coding receiver and transmitter use the same pseudo-random sequence as related to the local despreading signal processing, in order to restore the information, the final demodulation, the receiver to complete the system.)

时域有限差分算法模拟二维金属圆柱的近场电场分布(FDTD algorithm for simulating 2D metal cylinder near-field electric field distribution)

地震信号处理当中应用小波去除面波干扰，小波变换后进行阈值处理，反变换之后得到面波压制后的地震信号(Surface wave seismic signals obtained after the seismic signal processing to suppress them after removing the surface wave interference wavelet, wavelet transform thresholding, anti transformed)

This is the cuckoo optimization matlab code

解决非线性规划问题的内点罚函数法，使用fmincon函数(The interior penalty function method for solving nonlinear programming problems uses the fmincon function)

方波信号的混沌阵子仿真模型，可用来仿真信号的最低信噪比！(The stream of square wave simulation model of the chaotic signal can be used to simulate the signal of the minimum signal to noise ratio!)

用来正演超临界角情况下的地震反射特征，用来分析地震反射的AVO特征等领域。(Forward simulation of wide-angle Reflection uesd in AVO analysis. )

差分进化算法matlab源代码用于寻找函数极小值，附有多个测试函数(Differential evolution algorithm matlab source code used to find the minimum function, with multiple test functions)

可以将TS流中的PES信息内的PTS位置标定(TS stream can be within the PTS PES position calibration information)

Two dimensional Spline interpolation