基于LabVIEW的微波频偏软测量方法研究  

Research on LabVIEW-based Soft Sensing Method for Microwave Frequency Deviation

作　　者：居滋培[1] 林燕凌[1] 王斌[1] 董大伟[1] 

机构地区：[1]上海理工大学电气工程学院,上海200031

出　　处：《自动化仪表》2008年第1期21-23,共3页Process Automation Instrumentation

摘　　要：通信频带的使用一般是被限制的,为了充分利用带宽,又不相互形成串拢,必须对调频信号的频偏有一定的限制,因此,频偏是一项很重要的测量参数。介绍了一种在LabVIEW平台上实现微波调频信号的频偏测量和分析方法。这种方法不仅投资少、携带方便,而且测量精度比较高。特别适合于室外的现场测量和流动性大的测量。该方法经反复实验效果很好,并已经在实际中使用。In general, the use of communication bandwidth is restricted. In order to make full use of the bandwidth and avoid string together, the frequency deviation of FM signal must have certain limitations. So, frequency deviation is a very＇ important measured parameter. The method of implementing measurement and analysis of frequency deviation for microwave FM signals on LabVIEW platform is introduced. This method requires less investment and is easy to carry out with high measurement accuracy. It＇s particularly suited to the site survey outdoor and great mobility measurements. After repeated experiments, it＇s proved that the method has good effect and it has been in actual use.

关 键 词：微波 频偏 调频 贝塞尔函数 调频指数 LABVIEW 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]