Frequency shift key /FSK/ approximations
Abstract
This paper presents approximating equations to the spectrum of PCM/FM or FSK signals when the frequency modulating waveform is a random sequence of binary pulses of duration T. These approximations are intended to add to computational efficiency, implementation and easy interpretation of EMI characteristics. Two particular models are considered: (1) envelope model and (2) algebraic model. The envelope model is implemented by slicing it at a level so that the total area satisfies a power constraint. The algebraic model is a simple algebraic form which approximates the signal in some neighborhood where most of the power is concentrated, while giving way to the envelope at distant frequencies.
 Publication:

International Symposium on Electromagnetic Compatibility
 Pub Date:
 1980
 Bibcode:
 1980emc..symp...65T
 Keywords:

 Approximation;
 Electromagnetic Interference;
 Frequency Shift Keying;
 Power Spectra;
 Pulse Code Modulation;
 Signal Analysis;
 Mathematical Models;
 Normalizing (Statistics);
 Pulse Duration;
 Waveforms;
 Communications and Radar