对CA码进行bpsk调制后得到一个GPS中频信号，画出其时域和频域图

说明：  传统的高分辨波达方向（DOA）估计算法中，一般都假设信号位于远场，此时入射到阵列的信源波前为平面波前，空间信号的定位参数可由DOA来确定。然而，当信源处于阵列的Fresnel区域时，信号波前需用球面波来描述，每个信源的定位信息要用DOA和距离联合描述。因此，远场情况下的一些线性理论推导已不再成立，传统的远场算法的估计不再适用(In traditional high resolution direction of arrival (DOA) estimation algorithms, it is generally assumed that the signal is located in the far field, where the source wavefront incident to the array is plane wavefront, and the location parameters of the spatial signal can be determined by DOA. However, when the source is in the Fresnel region of the array, the wavefront of the signal needs to be described by spherical wave, and the location information of each source needs to be described by DOA and distance. Therefore, some linear theoretical deductions are no longer valid in the far-field case, and the estimation of the traditional far-field algorithm is no longer applicable.)

说明：  对二维数据进行变分模态分解，可用于地震数据去噪等(Variational mode decomposition of two-dimensional data can be used for seismic data denoising, etc.)

RTKLIB整个开源结算软件，window下可用及一套可结算的数据(RTKLIB and a set of settled data)

OFDM matlab 水声通信程序，带有水声同步头，OFDM调制解调(OFDM matlab acoustic communication program, the first sync with the sound of water, OFDM modulation and demodulation)

实现图像之间的数据融合，主要方法有基于HIS变换的，基于PCA变换的，基于加权变换的。(Between image data fusion, the main methods of transformation based on the HIS, based on the PCA transform, based on the weighted transform)

基于pm谱模拟海浪高度场.产生二维的随机海面(based on pm spectrum simulation of 2-D sea surface)

说明：  BCH码的Berklak-Massey算法，编程比较经典。(BCH code Berklak-Massey algorithm, compare the classic programming.)

用于估计TVPVAR模型,使用MATLAB语言编程，其中有比较详细的程序使用说明(It is used to estimate TVPVAR model.)

说明：  ? 了解3G移动通信网中关键技术CDMA的实现原理 ? 掌握matlab编程，实现CDMA原理仿真 ? 掌握matlab语言对于码分复用技术仿真的功能(Understanding the Implementation Principle of the Key Technologies of CDMA in 3G Mobile Communication Network Master the MATLAB programming and realize the simulation of the principle of CDMA Master the function of MATLAB language in simulation of code division multiplexing technology)

卡尔曼滤波的标准工具包 包含各种卡尔曼滤波器(standard toolbox for kalman Filters)