两种本振功率控制方法的对比分析  

Contrast Analysis of Two Methods of LO Power Adjustment

作　　者：凌伟[1] 

机构地区：[1]中国电子科技集团公司第四十一研究所,山东青岛266555

出　　处：《科教文汇》2015年第18期178-179,共2页Journal of Science and Education

摘　　要：本振是电子系统的心脏,是决定电子系统性能的关键设备。工程上通常将一套成熟的本振合成技术应用到不同系统中,但是不同系统对本振功率的要求是不同的,因此对本振功率进行调节就十分必要。本文详细论述了开环和闭环两种本振功率控制方法,并且结合工程实践对它们的优点和缺点进行了对比分析,指出应根据实际需求选择相应的功率控制方法。LO is the heart of electronic systems, it is the key e- quipment that determines the performance of electronic systems. Usually a set of mature LO synthesis technology would be applied to various systems, but these systems have different power re- quirements. So it＇s very necessary to adjust the LO signal power. In this paper, we discussed two methods of how to adjust the LO signal power： the open-loop method and the elosed-loop method, their advantages and disadvantages were analyzed, so it＇s neces- sary to select the appropriate method according to the actual re- quirement.

关 键 词：本振 开环功率控制 闭环功率控制 

分 类 号：TN773[电子电信—电路与系统]