Title :
Settling time specifications: phase or frequency?
Author :
Phillips, Donald E.
Author_Institution :
Collins Avionics & Commun. Div., Rockwell Int. Corp., Cedar Rapids, IA, USA
Abstract :
The tuning speed of frequency synthesizers is usually specified by either phase or frequency setting. This paper shows that in frequency hopping systems (with FSK type of modulation) phase settling characteristics correspond to system performance better than frequency settling characteristics. This paradoxical condition is discussed in three ways: (1) a simulation compares frequency and phase settling to system performance, (2) intuitive explanations are developed, (because one cannot accept mathematical proof unless it makes sense), and (3) confirmation by mathematical analysis is presented. Finally, phase settling specifications are discussed
Keywords :
frequency hop communication; frequency shift keying; frequency synthesizers; FSK; frequency hopping systems; frequency setting; frequency settling characteristics; frequency synthesizers; intuitive explanations; mathematical analysis; mathematical proof; phase setting; phase settling characteristics; settling time specifications; simulation; system performance; tuning speed; Band pass filters; Circuit simulation; Delay effects; Frequency shift keying; Frequency synthesizers; Matched filters; Phase locked loops; RLC circuits; System performance; Voltage;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.473860
