数据采集编程指南 中篇

labview的PXI应用实例，通过工程实例详细介绍了PXI虚拟仪器的使用。(PXI using in labview)

说明：  准备电赛时使用Labview制作的电能监控系统，分为CD主页面、采集数据、电压偏差模块、控件1、小波去躁模块、谐波检测模块六部分。是很好的参考资料。(The power monitoring system made by Labview is used to prepare electric races. It is divided into six parts: CD main page, data collection, voltage deviation module, control 1, wavelet elimination module and harmonic detection module. It's a good reference.)

说明：  LABVIEW OCR use. it is a .abc file number one to eight

使用labview2011编写的串口采集程序，可以自动保存采集数据，并自动按创建时间分类。生成的txt文档可供matlab等软件进行后续数据处理。(Use labview2011 prepared by the serial acquisition program, you can automatically save the collected data and automatically classified by creation time. Txt files generated by matlab software available for subsequent data processing.)

利用LabVIEW正弦波信号生成函数，和频谱转换子vi生成频谱图，并将频谱信号生成excel保存(Spectrum diagram of sine wave signal and create excel)

在嵌入式开发和单片机开发，串口是必不可少是外设设备，串口可以用于调试程序的正确性，同样他可以运用于你的整个开发平台，因而知道如何利用串口调试助手是十分重要的。(In embedded development and MCU development, serial port is essential peripheral equipment, serial port can be used to debug the correctness of the program, also he can be used in your entire development platform, so know how to use the serial port debugging assistant is very important.)

声卡采集示波器，不仅可以调波形，还可以将波形以bmp格式保存，文件读取回放，复位，暂停时调节波形，动态显示测量数据及相应的信号处理数据，具有各种滤波处理。里面附带了流程图和详细的技术文档资料，设计论文。(Design and Realization of Virtual Oscillograph based on LABVIEW )

基于labview的各种应用研究，功能如下：傅里叶分析（具体分单边和双边两种傅里叶分析），联合时域分析，帕斯瓦尔定理的验证，信号的边界检测（通过改变信号中所加白噪声的大小来被检测信号），FIR滤波器的设计及效果验证（窗和信号均可改变），IIR滤波器的设计及效果验证（可以使用多种滤波器），web 浏览器的模拟，万年历（可以计算任何日期到当前时间的时间间隔）((The specific stars unilateral and bilateral two Fourier analysis), the joint time-domain analysis, the Pas Val theorem authentication boundary detection signal (signal to be detected by changing the size of the white noise signal to Fourier analysis), FIR filter design and effect verification (window, and the signal can be changed), IIR filter design and effectiveness of verification (you can use a variety of filters), simulation of the web browser, calendar (any date can be calculated to the currentthe time interval))

清除串口冗余。当下位机偶然有乱码出现时，在新的通讯开始先清除缓冲区冗余信号，然后开始通讯，可以保证通讯更稳健(Clear serial redundancy. Current-bit machines have occasionally garbled when, in the new communications start to clear the buffer zone redundant signal, and then began to communications, to ensure more robust communication)

?运用数字信号处理及相关专业知识设计一个基于LabVIEW的虚拟仪器，采集一个信号，对其进行FIR滤波，将滤波后的波形输出并分析结果(Using digital signal processing and related professional knowledge to design a virtual instrument based on LabVIEW, collect a signal, carry out FIR filtering, output the filtered waveform and analyze the result.)