Hilbert

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

mail server可在列表框中选择，一种可发送QQ邮件，一种可发送gmail邮件，两种方法都是需服务器用户名密码验证，比如输入个人QQ邮箱+正确的密码可进行邮件的正常发送。(Mail server can be selected in the list box, a kind of can send QQ E-mail, one can send a gmail, two methods are both need to server user name password authentication, such as input personal QQ E-mail and the correct password can be normal delivery of messages.)

Labview实现声音信号连续采集存储的例子，可以长时间采集存储，很实用。(Examples Labview to achieve continuous sound signal acquisition and storage can be stored for a long time collecting, very practical.)

labview中用程序去产生一个触发事件是个难点，相关的介绍和例子并不多，本程序使用值属性信号结点改变的方法去产生一个事件，实现程序控制产生触发事件的功能，labview开发版本8.2。(labview using the program to generate a trigger event is difficult, relevant examples of the introduction are not many,here we use the value change of the node attribute of the signal to generate an event, the realized the program control functions to generate trigger events, the version of labview development is 8.2 .)

LabVIEW Office 报告生成工具包提供了一个基于交互式配置的 Express VI——MS Office Report,(LabVIEW Office Report Generation Toolkit provides an Express VI-MS Office Report based on interactive configuration.)

说明：  图像采集，可以利用电脑摄像头采集图像并保存到指定目录下(Image acquisition, which can be collected by computer camera and saved to a specified directory)

labview调用dll实现QR二维码生成，包含dll说明等，可作为子vi直接使用(LabVIEW calls the DLL implementation of QR code generation, including DLL, can be directly used as a sub VI )

本系统可做自动控制原理中的时域分析仿真实验，系统特性如下： 1：可选择仿真系统为一阶、二阶、任意阶 2：可选择信号源为正弦波、三角波、锯齿波、方波（可模拟阶跃信号），并可调节信号源频率、幅值、相位、偏移、方波占空比 3：可选择信号采样率及采样数 4：自动计算传递函数 5：自动计算时域响应参数（增益系数、上升时间、峰值、峰值时间、稳定时间、超调量） 6：波形图同时显示原始信号和响应信号 注：使用本系统需安装labview控制设计与仿真库(The system can do automatic control theory in the time-domain analysis simulation, the system behaves as follows: 1: simulation system can be selected for the first, second, any order 2: select the signal source is a sine wave, triangle wave, sawtooth, square wave (analog step signal), and can adjust the signal source frequency, amplitude, phase, offset, duty cycle square wave 3: the the optional signal sampling rate and the number of samples 4: automatic calculation of the transfer function 5: Automatic calculation domain response parameters (gain coefficient, rise time, peak, peak time, settling time, overshoot) 6: waveform diagram shows both the original signal and the response signal Note: Use the system to be installed LabVIEW Control Design and Simulation library)

KNR的电机驱动与控制，实现电机的正反转，读取编码器的读数，设置电机的速度，读数位置。 需要有KNR（贝登堡公司生产）(With the KNR driver control motor, to achieve positive motor, read the encoder readings, set the speed of the motor, reading position. The need for KNR (Baden Powell company))

利用NIUSRP 和LABVIEW数字通信实验平台，进行信道估计和信道均衡，实践均衡器的原型设计和性能评测。(Use LABVIEW and NIUSRP digital communications test platform for channel estimation and channel equalization, practice equalizer prototyping and performance evaluation.)