Cosine series function design of offset quadrature binary modulation systems

Author

Vigil, A.J. ; Belkerdid, M.A. ; Malocha, D.C.

Author_Institution

Electron Decisions Inc., Urbana, IL, USA

fYear

1991

fDate

4-7 Nov 1991

Firstpage

554

Abstract

The authors apply the finite truncated cosine series to the design of baseband symbol shapes for full response signaling quadrature binary modulation systems. Design examples are provided. The respective modulation techniques quadrature phase shift keying (QPSK), minimum shift keying (MSK), sinusoidal frequency shift keying (SFSK), and double sine frequency shift keying (DSFSK) on the basis of modulated signal envelope uniformity and spectral confinement. It is shown that the freedom to select spectral zeroes in the closed-form design of the pulse shape introduces a vehicle for suppressing narrowband interference without introducing intersymbol interference into the system. Modulation system implementations are proposed and discussed

Keywords

frequency shift keying; minimum shift keying; phase shift keying; series (mathematics); signal synthesis; DSFSK; MSK; QPSK; SFSK; baseband symbol shapes; closed-form design; double sine frequency shift keying; finite truncated cosine series; full response signaling; minimum shift keying; modulated signal envelope uniformity; narrowband interference suppression; offset quadrature binary modulation; pulse shape; quadrature phase shift keying; sinusoidal frequency shift keying; spectral confinement; Baseband; Frequency shift keying; Intersymbol interference; Narrowband; Phase modulation; Pulse shaping methods; Quadrature phase shift keying; Shape; Signal design; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1991. MILCOM '91, Conference Record, Military Communications in a Changing World., IEEE

Conference_Location

McLean, VA

Print_ISBN

0-87942-691-8

Type

conf

DOI

10.1109/MILCOM.1991.258316

Filename

258316