Phase Noise Measurements and System Comparisons

摘要

One of the most important parameters for oscillators is phase noise as it is critical to most applications.121 There are several methods for measuring phase noise which will be covered here including the pros and cons of each technique. Example measurements on various types of systems will also be compared including their accuracy and speed. The pioneer in phase noise measurement was Hewlett Packard.1,2 Modern phase noise systems use the correlation principle but this method has some drawbacks.