نتایج جستجو برای: noise figure
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Two techniques are commonly used to measure NF: the Y-factor method and the cold-source method. The Y-factor or hot/ cold-source method is the predominant approach and is most commonly implemented with noise-figure analyzers and spectrum analyzer-based solutions. In contrast, the cold-source method is usually performed using vector network analyzers (VNAs), which provide magnitude and phase inf...
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DVB-T Receiver performance: measurement of receiver noise floor and definition of difficult channels
A DTG receiver group seminar on DVB-T receiver performance was held at BBC R&D at Kingswood Warren on Friday 6th February 1998. At this seminar, it was agreed that in addition to front end noise figure, an important parameter in receiver design was the receiver noise floor, Px. Measurement of receiver noise floor is a difficult challenge. There are no direct methods of measuring the overall val...
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