GNSS接收机数据解析显示

labview中对串口进行操作，注意：这不是普通的操作方法，而是使用队列的方法，避免了数据乱串的象限。(labview visa queue control)

基于labview的信号与线性系统仿真，可以实现傅里叶变换、信号平移、加减、卷积的常见信号运算(Labview based signal and linear system simulation, signal operation can achieve common Fourier transform, signal translation, subtraction, convolution)

labview采用 生产消费模式处理用户菜单(handle menu via Producer and Consumer Events)

关于列车故障诊断振动信号分析研究系统的开发(Fault Diagnosis of train vibration signal analysis system development)

用于卡尔曼滤波，静态GPS信号接收时，对GPS信号进行分析(Kalman filtering is used, a static GPS signal reception when the GPS signal is analyzed)

说明：  生成的波形图表数据自动保存到指定文件夹下面，在数组中时时显示数据。(Generated waveform chart data is automatically saved to the specified folder, and always display the data in the array.)

对载波相位平滑伪距的原理和数据预处理进行了探讨,给出提高其定位精度的处理方法和流程。通过 两个算例得到如下结论:对C1和P2码进行相位平滑可有效提高伪距定位精度,较长时间观测定位精度可达1 m 左右,利用精密星历改进后,平滑伪距的定位精度可达0. 5 m左右 对P1和P2码进行相位平滑对定位精度提高不 大,较长时间观测平滑前后的定位精度均可达到0. 6 m,利用精密星历改进后,精度可达0. 3 m 在动态测量后处理 中,绝大部分历元利用精密星历结合相位平滑的定位精度可达2 m。 (The principle and data preprocessing ofcarrier smoothed pseudorange are discussed and themethod which can improve the positioning accuracy and its flow are given.W ith thismethod two computation examples are made.The results show tha:t 1)the accuracy can be improved efficiently by using smoothed C1and P2pseudorange in static data processing, the accuracy can reach 1m if the time is long and can attain 0. 5m if the precise ephem- eris is taken 2)the accuracy can be boosthardly by using smoothed P1and P2pseudorange, but the accuracy can be improved from 0. 6m to 0. 3m if the time is long enough and the precise ephemeris isused 3)mostepochs can reach to the accuracy of2 m precision in kinematic positions if the smoothed code and precise ephemeris are uti- lized. )

说明：  简单示波器，可以实现在前面板中显示各种波形图(Using LABVIEW to make Simple oscilloscope)

此程序为GPS接收机的源码，包括捕获、跟踪、定位解算和算法，其硬件基于gp2015和gp4020,处理器为arm7,对理解GPS接收机原理有很大帮助．(This procedure source for GPS receiver, including the capture, tracking, positioning solvers and algorithms, and its hardware-based gp2015 and gp4020, processor arm7, on the understanding of the principle of GPS receivers have great help to me.)

利用LabView 程序控制 数字信号源AFG3000进行频率扫描(LabVIEW program control digital signal source AFG3000 frequency sweep)