Noise Power Ratio the Analytical Way (2000)
By Robert L. Howald, Michael Aviles Motorola Broadband Communications Sector
Noise power ratio (NPR) testing is a valuable tool for characterizing return path link performance capability. It provides a quick snapshot of a link’s noise and distortion performance with one easy to understand performance curve. Additionally, it is a relatively simple test to perform, particularly with the development of automated NPR test equipment. The development of HFC into a high performance two-way interactive communications medium has meant the need to assure a high quality link. NPR testing is a valuable characterization tool towards meeting this goal.
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