Spectrum Analysis

本vi用于读取excel文件并将所需数据做快速傅里叶变换（FFT）处理。(This VI is used to read the excel file and to process the required data by fast Fourier transform (FFT).)

主要实现激光传感器与上位机的实时通信功能。(The main function of laser sensors for real-time communication with the host computer.)

用于labview数据库编程，相关指导资料(Used for LabVIEW database programming, related guidance materials)

test on two solenoid valves connecting on one hydraulic line on/off

基于LabVIEW的声音定位系统，通过串口采集四路声音数据，根据声音能量解算出声源位置，并将结果显示出来(A LabVIEW Programme deal with the localization of sound source,collect the strength of sound anr the give the result of the localization process)

说明：  利用labview常用架构JKI SMO简单设计一款测试系统(A simple test system is designed by using the common architecture jki SMO of LabVIEW)

优点：1，PPI协议通讯速度快，比OPC ，PCAccess，Modbus 快4-5倍左右。(就这一条优点就足了，呵呵) 2，PLC端无需编写任何通讯程序。 3，可以直接对PLC进行，RUN STOP等操作。 4，本程序全部采用LABVIEW底层程序框图，没用调用任何的DLL ，API等。这点对你学习还是修改程序功能都很有帮助，方便。 (Advantages: 1, PPI protocol communications faster than OPC, PCAccess, Modbus about 4-5 times faster. (On which an advantage on the feet, huh, huh) 2, PLC-side without writing any communication program. 3, can be carried out directly on the PLC, RUN STOP operation. 4, the procedure used in all LABVIEW underlying the block diagram, useless to call any DLL, API, etc. This is for you to learn or modify the program features are very helpful and convenient.)

第一部分产生最大128位随机数 第二部分用汉明距离检测误码率 第三部分，第一和第二再加调制（BPSK+QPSK）加白高斯噪声通道awgn，得到结果并用图形显示。(part1: source.vi generate a ramdom bit sequence. part2: erro detection get BER via Humming Dacetance. Part3: part 1+ 2, and modelation (BPSK or QPSK), and AWGN,get BER and show it in diagram.)

高级串口读写程序，可以实现串口数据的读写(Advanced Serial literacy program)

利用VISA去控制GPIB串口通信，最终实现与频谱仪，电源，示波器等相互之间通信(VISA to control GPIB serial communication, and ultimately with the spectrum analyzer, power supplies, oscilloscopes, and other mutual communication between)