Transients in Frequency Modulation
- 1 August 1942
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 30 (8) , 378-383
- https://doi.org/10.1109/JRPROC.1942.231701
Abstract
In a frequency-modulation system, a sudden jump in carrier frequency corresponding to a Heaviside unit signal will result in a transient depending on the receiving-filter bandwidth. If this bandwith exceeds twice the maximum frequency swing, the shape and duration of the transient is shown to be about the same as in an amplitude-modulation system with the same bandwidth; for narrower filters the transient lasts longer. These results are applied to several practical cases. The transient is favorably affected by using an amplitude limiter and by arranging the filter pass band so as to enclose the maximum frequency swing symmetrically.Keywords
This publication has 1 reference indexed in Scilit:
- The Solution of Unsymmetrical-Sideband Problems with the Aid of the Zero-Frequency CarrierProceedings of the IRE, 1941