摘要
随着无线通信技术的飞速发展,出于对更高频谱利用率的追求,线性调制技术正得到越来越广泛的应用。而许多设备在生产测试中对于信号源的功能要求较低,使用商用的信号源成本较高,而ADS可以产生基带数据,使开发专用信号源的技术难度降低,开发成本降低。介绍了ADS仿真软件与ESG系列信号发生器相结合产生特定调制的16QAM的测试信号源。经过RF发射机后,利用E4445A频谱仪与VSA89600矢量信号分析软件,对信号进行解调分析。从而验证了ADS可以产生各种调制信号,并将其作为测试信号源。
With the rapid development of wireless communication, in order to make more efficient use of frequency spectrum, the linear modulation methods are widely used. Many in the production or test equipments have the lower functional requirements for the signal source, the use of commercial signal source costs highly. However ADS can produce baseband data so that the technical difficulty for development of the specialized signal source is reduced, and the development costs lower. This paper will illustrate how to generate 16QAM signal with Agilent Ads simulation software and ESG FA438C vector signal generator. The 16QAM signal is transited by a RF-transmitter,And after through the RF-transmitter, the Signal is demodulated and analysed by using the PSA FA445A series spectrum analyzer and VSA89600 series vector signal analysis software. ADS can be proved to have a variety of modulated signals, which can use as a test signal source.
出处
《电子器件》
CAS
2008年第5期1581-1583,共3页
Chinese Journal of Electron Devices
