论文部分内容阅读
相位噪声是最广泛用于描述频率的特有随机性的术语.业已提出了相位噪声测量的自动化采用两种技术即(双振荡器技术和单振荡器技术)可得到满意的结果.在频域中,使用一个频谱分析仪完成其测量,频谱分析仪提供一个跟随相位或频率检波器的频率窗.现代化的系统包括用于交互频谱测置的系统改进和用于改进延迟线调频鉴频器的噪声本底特性的技术,以便测量具有极低相位噪声特性的单信号源.还包括测量调幅噪声用的系统和技术.
Phase noise is the most widely used term for describing the randomness of frequencies.It has been proposed that automation of phase noise measurements yields satisfactory results using both techniques (dual oscillator technology and single oscillator technology) .In the frequency domain , Which is measured using a spectrum analyzer that provides a frequency window followed by a phase or frequency detector Modern systems include system improvements for crossover spectroscopy and noise for improved delay line FM detectors Background characteristics of the technology in order to measure a single signal source with very low phase noise characteristics.It also includes systems and techniques for measuring AM noise.