峰值功率计校准方法的研究

为解决峰值功率计所特有的突发功率参数的校准问题,从在数字移动通信系统中广泛使用的突发信号的各项特殊功率参数以及峰值功率计的测量原理入手,以传统功率校准为基础,结合新参数特点对校准峰值功率计的原理和方法进行了研究,最后建立了校准系统,并给出了突发功率的测量不确定度分析,结果其扩展不确定度为0.17 dB,满足峰值功率计的校准要求。

Study on Peak Power Meter Calibration

In modern digital mobile communications system, the signals are transmitted in burst mode that requires power meter be able to measure the power of discontinuous signal, so frist,the peak power and burst power meters are introduced. Those special parameters about the power of burst signal and the measurement theory of peak power meter are also introduced. The theory and method of calibrating peak power meter are described combined with the characters of those parameters. Finally, calibration results and measurement uncertainty analysis are reported,the expanded uncertainty is 0.17 dB, the system can meet the calibration requirements of the peak power meter.