phase_noise_theoryTommorrow’s Phase Noise Testing Today 35 South Service Road Plainview, NY 11803 TEL: 516-694-6700 FAX: 516-694-6771 APPLICATION NOTE #1 Phase Noise Theory and Measurement 1 INTRODUCTION Today, noise measurements have become an essential factor in the characterization of signals. This is easy to understand when one realizes that it is phase noise that: limits the operating range of radar degrades the quality of television pictures limits the precision of satellite positioning spoils the quality of data transmission The primary characteristic of noise is its randomness, and this is due to the physical mechanisms which generate it. Three leading types of noise are to be found in all electronic systems: Thermal Noise: random motion of the carriers in a conductor. Shot Noise: random flow of t……