Power-spectrum-analysis

labview与usrp收发的使用，以及简单的实例。(LabVIEW and USRP transceiver)

几个练习使用Labview编程的产物，主要包括：1.正弦扫频信号发生器，可选择频率变化规律（不变、线性、指数变化）以及幅度变化规律（不变、线性、指数变化），还可以通过MathScript节点自定义频率、幅度变化规律； 2.声卡数据采集及频谱分析；3.会说话的小圆点；4.十六进制数布尔数组显示；5.在字符串中显示多种字体；6.钢琴键盘模拟(Several products by practicing Labview programming, including: 1 Sine sweep signal generator, selectable frequency variation (constant, linear, exponential change) and amplitude variation (constant, linear, exponential changes), you can also customize the frequency and amplitude variation through MathScript Node 2 sound card data acquisition and spectrum analysis 3 talking dots 4 hexadecimal to boolean array display 5 display a variety of fonts in the string 6. Piano keyboard simulation )

说明：  labview 通过OPC 访问西门子PLC(LabVIEW accesses Siemens PLC through OPC)

XY图 随点位增加而实时显示,非常方便(XY chart show with the points add)

水泵振动数据采集，通道设置，模数转换，三路传感器信号采集(Pump vibration data acquisition)

说明：  labview编写串口通讯实例，基于ModBus协议，使用串口通讯，与电机驱动器通讯，实现信号写入与读取，从而控制电机(LabVIEW serial communication, signal writing and reading)

实用LabVIEW软件 实现短时傅里叶变换。实现对数据的时频分析(LabVIEW software utility short time Fourier transform. Achieve time-frequency analysis of data)

基于labview的简单变声程序，简单而有趣，可以尝试一下，并做出改进(Labview program based on a simple change of sound, simple and fun, you can try and make improvements)

软件开发，labview控制的温度程序，这是一个通过串口控制8路的labview程序的。(Software development, LabVIEW controlled temperature program)

通过user32.dll获取窗口句柄， 并模拟软件上的按钮操作(through user32.dll to acquire window api)