Power spectrum of unbalanced NRZ and biphase signals in the presence of data asymmetry

Author

Bishop, Dennis F. ; Million, Samson ; Nguyen, Tien M. ; Simon, Marvin K.

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

40

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

55

Lastpage

61

Abstract

The impact of data unbalance and asymmetry on the power spectral density of nonreturn-to-zero (NRZ) and biphase baseband modulations is presented. Previously reported results for this problem assumed an incorrect model for the shape and number of elementary pulse shapes that characterize an arbitrary random data stream and thus led to erroneous computations of these power spectra. This paper provides the correct analytical model and then use it to obtain theoretical power spectrum results that are in full agreement with those obtained from computer simulation

Keywords

phase modulation; random processes; signal processing; spectral analysis; biphase baseband modulation; computer simulation; correct analytical model; data asymmetry; data unbalance; elementary pulse shapes; erroneous computations; incorrect mode; power spectral density; power spectrum; random data stream; unbalanced NRZ signals; Analytical models; Baseband; Laboratories; Optical signal processing; Probability; Propulsion; Pulse modulation; Pulse shaping methods; Shape; Space technology;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.659520

Filename

659520