Active-Noise-Control

本程序体现在NI LabVIEW 环境里实现高速数据文件存储和回放。 当连续存储大量数据时,使用TDMS格式高效地将数据。(This procedure is reflected in the NI LabVIEW environment to achieve high-speed data file storage and playback. When a large amount of data is stored continuously, data is efficiently transmitted using the TDMS format.)

说明：  labview实现串口示波器的功能，读取示波器发送的浮点数数据，并绘制曲线(Serial port oscilloscope)

对信号进行采集和保存，其采样率默认为信号频率的10倍，并将采集到的信号数据保存到电子表格中(Save signal data acquisition and preservation of the signal, the default sampling rate is 10 times the signal frequency, and collected into a spreadsheet)

串口数据采集RS232串口是工业中比较常用，也最容易接触到的一种总线协议，台式机上一般都有二个，而现在很多下位机、仪器等很多都还是使用串口通信的。通过RS232串口可以方便的实现Labview与其他测试软件、控制软件的通信。(Serial port data acquisition RS232 serial port is a kind of bus protocol which is commonly used in industry, and it is also the most easy to contact. In general, there are two desktop computers, and many lower computer, instrument and so on are still used in serial communication. The communication between Labview and other test softwares and control software can be conveniently realized through RS232 serial port.)

Labview的详细开发指南，包括：双精度数据不适于相等比较（内置函数）；顺序结构是“结构”吗？；到底什么是“节点”；XY GRAPH的输入参数形式 ；整型数据类型和内存映射；状态机的基本概念 ；状态机的基本类型顺序结构 ；状态机的基本类型之标准状态机 ；事件结构中的TIMEOUT进行数据采集合适吗 ；全局变量、移位寄存器和功能型全局变量的性能比较等。(Labview detailed development guidelines, including: double precision data is not suitable for equality comparison (built-in function) sequential structure is " structural" it? In the end what is " node" input parameters of the form XY GRAPH integer data types and memory mapping basic concept of the state machine basic types of sequential structure of the state machine basic types of state machine standard state machine event structure The TIMEOUT data collection suitable for you global variables, shift registers and functional performance comparison of global variables and so on.)

方根幅值是计算裕度指标与波性指标的必要部分，本文件将其独立做成了一个子VI，方便labview程序调用。希望对小伙伴有所帮助！(The root mean square amplitude is a necessary part of the margin index and the wave index. This document makes it a sub VI, which is convenient for LabVIEW program call. Hope to help small partners!)

说明：  使用研华采集卡，labview驱动，采集数据和存储，曲线显示(Labview data acq excel save and display)

利用labview的xy图，画一个圆。根据sinx^2+cosx^2 1利用labview的正弦波生成函数画出圆(Use labview s xy chart to draw a circle. According to sinx ^ 2+ cosx ^ 2 1 using labview sine wave generation function to draw a circle)

对信号进行滤波，频谱分析，以及对滤波器的特性进行分析（基于labview的高级信号处理工具箱）(Filtering, spectrum analysis, and analysis of filter characteristics (advanced signal processing toolbox based on labview))

labveiw实现基带信号的幅度调制（AM），频率调制(FM)和相位调制(PM)，可以在波形图中看到调制信号和调制后信号的叠加和对比，可以看到频域波形。载波与基带幅度和频率参数均可改变。(Baseband AM/FM/PM in labview. In the vi, you ll be able to see the modulated signal in both time and frequency domain.)