信号发生器vi设计

labview对信号fft变换及信噪比分析(Signal FFT transform and signal to noise ratio analysis of LabVIEW)

labview串口接收、发送（分开）程序以及总通信程序(LabVIEW serial port receive, send (separate) program and general communication program)

数据采集基于NI labview的书记采集程序，采集数据传感器的信号，功能良好(Data acquisition based on NI LabVIEW Secretary collection program, data acquisition sensor signal, function is good.)

蓝牙自检，配对和检测以及对蓝牙设备进行读写操作。(bluetooth pairing and inspection)

此源程序为用Labview程序编制的，针对采集信号的功率进行分析。。(This source program is compiled by Labview program, and the power of the collected signals is analyzed..)

控制蓝牙Dongle 通过蓝牙地址自动配对 (Cotrol the IVT dongle let it paied the bluetooth that you want to test.)

说明：  对单个边缘规则的近圆形图像进行拟合，并在原图像的基础上画近似圆(Fitting a single edge regular near-circular image and drawing an approximate circle on the basis of the original image)

labview与台达变频器通讯实现，采用的是Modbus-RTU格式(The communication between LabVIEW and transceiver is implemented in Modbus-RTU format.)

锁相技术在测控、通信、数字信号处理等众多领域得到了广泛的应用。虚拟锁相环成为锁相环发展趋势之一，根据锁相环路的基本组成及原理，利用LabVIEW软件提供的强大的数值计算和信号分析等能力对锁相环进行设计。实验和仿真结果表明该软件锁相环具有较好的捕获和跟踪性能。利用软件实现的锁相环比硬件锁相环具有更好的灵活性和通用性，同时具有结构简单、参数设计灵活等优点。(Lock-in technique in many areas of monitoring and control, communications, digital signal processing, has been widely used. Became one of the virtual phase-locked loop phase-locked loop trends, according to the basic principles of composition and phase-locked loop, using LabVIEW software provides powerful numerical calculation and signal analysis capabilities such as phase-locked loop design. Experimental and simulation results show that the software PLL has a better acquisition and tracking performance. Use of software than hardware locked loop PLL has better flexibility and versatility, but also has a simple structure, flexible design parameters, etc..)

用于测量信号的振幅谱与功率谱，对初学LABVIEW做信号分析会有帮助。(Used to measure the signal amplitude spectrum and the power spectrum, signal analysis for beginners LABVIEW do help.)