At last, correction method of low level signal measurement is discussed duo to effect of spectrum analyzer floor noise.
最后，讨论了频谱仪本地噪声对低电平信号测量影响的修正方法。
Improving measurement accuracy of low level signal is studied using RF attenuation, resolution bandwidth, video bandwidth, and video average.
研究了利用频谱仪射频衰减、分辨带宽、视频带宽和视频平均的方法，提高和改善低电平信号的测量精度。
There are some prominent features in the modern measurement, such as the low-level and nonlinear signal, multi-inputs multi-outputs, and high real-time requirement.
现代信息检测处理的信号具有微弱、非线性、多输入多输出、实时性高等特点，迫切需要高效的信号检测和处理方法。
There are some prominent features in the modern measurement, such as the low-level and nonlinear signal, multi-inputs multi-outputs, and high real-time requirement.
现代信息检测处理的信号具有微弱、非线性、多输入多输出、实时性高等特点，迫切需要高效的信号检测和处理方法。
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