A method of FM noise measurement is introduced.

分析了一种微波源调频噪声测量方法的原理。

Aircraft ground support equipment - General requirements - Part 4: noise measurement methods and reduction.

飞行器地面支持设备。一般要求。第4部分：噪声测量方法和噪声降低。

This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.

本文叙述了用频谱分析仪测量相位噪声的方法，步骤和应注意的问题。

The NA-37 system is designed based on long-term experience and technology of Rion in noise measurement field.

在北美- 37系统设计基于长期的经验和里翁噪声测量技术领域。

In addition, the noise measurement system and method are discussed in the paper and some Suggestions are given.

另外，水文对噪声测量系统和测试方法进行了讨论，并提出了一些建议。