XAJ_fun

The package contains the set of documents which helps in checking and verifying the stability of the system and the data s are plotted to get the stability point

频率调制和解调 频率调制是将消息信号的积分作为相位，也就是用消息信号去调制频率 ( Of the frequency modulation and demodulation frequency modulation is the integral of a signal of the message as the phase, that is, with the message signal to the modulation frequency)

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.)

雷达系统仿真好资料， 希望有兴趣同学下载程序，是学习雷达信号处理的(radar simulation code in matlab please download and study it)

generation of wideband and high dynamic range analog signal for area-efficient MADBIST, especially for the on-chip testing of wireless communication IF digitizing sigma–delta modulator chip. Via increasing the order of the one-bit bandpass sigma–delta modulation algorithm up to 12 and using finite repetitious bitstream approximating scheme, it can achieve great improvements in signal bandwidth instead of purity at the cost of very little hardware overhead. Another contribution in this work is to provide the theoretical analysis of the reconstructed signal degradation due to harmonic distortion and clock jitter. Such on-chip analog stimulus generation scheme is especially fit for IF digitizing bandpass sigma–delta modulator chip s production-time testing and in-the-field diagnostics. The technique can also be extended to mixed-signal communication SoC built-in-self-test.

说明：  gps软件源代码，数据解帧，卫星位置解算。用户位置解算及修正-Matlab gps software source code, data solutions frame, calculate satellite position. User location and amendments Solution

模糊C均值聚类算法实现数据挖掘的matlab源代码(Fuzzy C-Means clustering algorithm for data mining matlab source code)

em算法matlab代码。解压缩后直接可以在matlab环境下运行(em algorithm Matlab code. Decompress directly in the operating environment Matlab)

sugeno fuzzy logic source mfile for prediction parameters

《MATLAB/Simulink电力系统建模与仿真》是电力系统分析MATLAB/Simulink仿真全部资料，资料内容全(The MATLAB/Simulink, the modeling and simulation of power system is all power system analysis of MATLAB/Simulink simulation data, the data content)