【摘要】 在散射系统开通时,天线的方位调整至关重要。介绍了一种基于PCI总线的小型简易式频谱仪的设计和实现。用FFT分析信号的频谱并将频谱显示在工控机的屏幕上,频谱仪安装在工控机内,使用简单,频谱显示直观,并能实现天线的自动对准,完全满足工程所需。更多还原

【Abstract】 It’s important that the azimuth of the antenna is tuned when troposcatter system working.In this paper,a simple spectrum analyzer based on PCI Bus is introduced.The spectrum of signals is analyzed with FFT and displayed on the screen of an industry computer.The automatic antenna pointing can be achieved by using this device,which is also built in the same industry computer.The validity of scheme is proved by engineering tests.更多还原