无论您想要增强产品性能还是提高测试吞吐量，都需要您的通用型信号析能够应对一系列广泛的挑战。Agilent EXA 信号仪符合上述要求 — 其快速灵活的解决方案使您利用一台仪器即可满足全部测量需要。它不仅实现了速度和性能的wm结合，而且提供各种 X 系列测量应用。利用 EXA 时刻准备应对所有挑战。
X 系列是一种利用仪器、测量方法和进行信号的演进方法。它的灵活性能够满足您在多个产品和项目中的商业和技术要求――无论是现在还是在未来。
To do this accurately, it is necessary to understand how a number of variables affect the overall measurement uncertainty. For measurements with an analyzer that measures noise figure, the measurement system contributors typically include:
the analyzer itself
the noise source
the characteristics of the device under test (DUT)
These factors interact in a complex way, but the overall measurement uncertainty can be modeled. The purpose of our 'Noise Figure Uncertainty Calculator' is to provide the measurement uncertainty associated with a particular DUT based on its characteristics and the specifications of the measurement system. For the model to be accurate in the Y-factor measurement technique case, the DUT must have reasonable reverse isolation, so that mismatch on one port does not drastically affect the impedance seen at the other port. For a more complete analysis refer to the article "Calculate the Uncertainty of NF Measurements", written by Duncan Boyd, Microwaves & RF October 1999, pp.93-102.
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