GMSK_matlab

针对双基阵提供的有偏方位角量测信息,对双基阵纯方位目标可观测性的必要条件及其Cramer-Rao下限 进行了理论推导.在此基础上,采用一种新的辅助变量方法对双基阵纯方位跟踪性能进行改进,并在可观测条件下对 目标进行了蒙特卡洛仿真实验.实验结果表明,新的辅助变量方法可以使参数估计精度大大提高,并且上述理论对制 定实际的跟踪策略或算法具有一定的参考价值 (For double-base matrix provided biased information azimuth measurement of double-base bearings-only target array may be a necessary condition for observability and Cramer-Rao lower limit of the theoretical derivation. On this basis, a new auxiliary variable method of double-base bearings-only tracking array to improve performance and can be observed under the condition of targets Monte Carlo simulation. The experimental results show that the new auxiliary variable method can greatly improve the accuracy of parameter estimation and the formulation of the above-mentioned theory tracking the actual strategy or algorithm has certain reference value)

说明：  以truetime-1.5为例说明truetime工具箱的安装方法，很实用！！(An example to truetime-1.5 truetime toolbox installation method, it works! !)

希尔伯特黄变换matlab小程序，一种适用于分析非平稳非线性信号的时频分析方法。(Hilbert-Huang Transform matlab code. It applies to seismic data.)

EMD（经验模态分解）程序，用于将非平稳信号分解为一系列不同频率的分量，以方便对信号进行分析。(EMD (empirical mode decomposition) program for the non-stationary signal is decomposed into a series of different frequency components, in order to facilitate the analysis of the signal.)

adaboost算法，用matlab编写的源程序，希望对大家有帮助(AdaBoost algorithm, prepared by matlab source, in the hope that we have to help)

Converts a square matrix into its Lower matrix and Upper matrix components.

This program computes the 2D IDCT as per the equation. The result matches the output of the built-in Matlab function.Good for analysis.

实现了在地震记录中拾取地层的Q值，然后对Q值进行补偿(Pickup achieved in the formation of the Q value of the seismic records, and Q values ​ ​ to compensate for)

使用高阶累积量对MPSK信号进行调制识别，可实现对二维数据的聚类，迭代自组织数据分析。( Using high-order cumulants of MPSK signal modulation recognition, Can realize the two-dimensional data clustering, Iterative self-organizing data analysis.)

说明：  利用matlab实现流体力学中经典算例：二维粘性方腔不可压流动的计算。(Matlab is used to calculate the incompressible flow in a two-dimensional viscous square cavity.)