dtw

对C/A码的相关在频域中的matlab实现仿真，大家交流啊，(Of C/A code correlation in the frequency domain realize matlab simulation, the exchange of everyone ah,)

遗传算法的优化计算，建模自变量降维，matlab经典算法(Genetic Algorithm optimization, modeling arguments dimensionality reduction, matlab classical algorithm)

计算隐马尔可夫模型序列的最可能的状态路径(Hidden Markov model to calculate the most likely state sequence path)

说明：  把激光陀螺捷联惯导系统和GNSS接收机固联于实验车实验仓中，接收机天线固联在实验车实验仓上方，车载计算机实时接收和采集惯导系统、卫星导航接收机的原始数据，在郊外开阔公路进行车载实验。 通过matlab编程实现卫星导航伪距单点定位、INS/GPS松组合导航的全过程。 1）卫星导航单点定位测速：利用采集得到的接收机时间、伪距、多普勒频移数据，要求进行单点定位、测速解算，输出接收机的位置、速度随时间的变化曲线，并给出位置、速度误差曲线； 2）松组合导航：结合惯导解算和卫星接收机单点定位测速，要求采用Kalman滤波器实现惯导/卫星位置、速度组合导航解算，滤波器维数至少包括惯导的位置、速度、姿态角9维。将组合导航后的姿态角与纯惯导的姿态角进行对比分析，给出位置、速度误差曲线。(The laser gyro strapdown inertial navigation system and GNSS receiver are fixed in the experimental compartment of the experimental vehicle. The antenna of the receiver is fixed above the experimental compartment of the experimental vehicle. The on-board computer receives and collects the original data of the inertial navigation system and satellite navigation receiver in real time, and carries out on-board experiments on the suburban open highway.)

采用频域FFT变换实现对雷达回波信号的MTI处理，有效的提高信噪比，本程序是对这一过程的验证。(Using frequency domain FFT transform of radar echo signal processing on the MTI, effectively improve the SNR, the procedures for the process validation.)

本代码可以实现CIC的抽取滤波功能，性能很好(This code implements the CIC decimation function, performance is very good)

this is the true algorithme

基于COM的VC与MATLAB的混合编程技术(COM-based mixture of VC and MATLAB programming)

important matlab programing for research

多种子点的区域增长，程序可在matlab环境中更直接运行；(Many seeds of regional growth, the program can be more direct in matlab environment to run )