局部变量用于自锁

新建子VI（test2 oise_testing.vi），运用Express VI，实现噪声信号的采集、处理、显示和存储(The new sub VI (test2 oise_testing.vi) uses Express VI to realize the acquisition, processing, display and storage of noise signals)

倍频程带通滤波器,实现倍频程分析和计算信号的有效值(Octave bandpass filter to achieve octave analysis and calculate the effective value of the signal)

USRP收发文字包，包括不同调制方式。有频谱图显示，即时收发。(USRP send and receive text package, including different modulation schemes. There spectrogram display, send and receive instant.)

labview 调用国产数据采集卡进行电压数据采集(Labview calls domestic voltage data acquisition data acquisition card)

参考如何修改载波频率实现跳频，参考如何获取USRP时钟信息(How to modify the carrier frequency hopping to achieve, how to get USRP clock reference information)

labview中对串口进行操作，注意：这不是普通的操作方法，而是使用队列的方法，避免了数据乱串的象限。(labview visa queue control)

利用Labview平台，实现了指定格式的xml与xls文件的互转功能，其中xml端利用Labview内部函数，xls端利用下载的dll函数。虽然不是通用互转系统，但仍然对labvie环境下xml编程和excel编程很有帮助。(The the Labview platform to achieve a specified format xml with the xls file Huzhuan function, in which the xml end to using Labview internal function, xls to end the use of the downloaded dll function. Although not the Universal Huzhuan system, but still helpful the xml programming labvie environment and excel programming.)

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.)

控制刹车系统循环，可以设置两个状态下的时间控制(Control brake system cycle)

用labwindows/CVI编写的一个串口小助手，可以根据下位机进行串口设置，实现不定长数据的收发。(a serial assistant with labwindows/CVI, can set the serial ports, transport variable length data.)