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Application signals pulse-width modulation in communication systems

Keywords:

V.N. Melchakov – Head of Laboretory, MIREA D.R. Barsky – Ph.D. (Eng.), VNIITSEVT E.V. Egorova – Ph.D. (Eng.), VNIITSEVT A.S. Avetisov – Post-graduate Student, MIREA A.I. Pikul – Deputy General Director, TSNIRTI named after Akademik A.I. Berg S.V. Tsapenko – Post-graduate Student, MIREA B.E. Borec – Post-graduate Student, MIREA


Unilateral modulation changes the position of one of the edges of pulses ( front or rear ), with two-way are moved in different directions leading and trailing edges , but in both cases the pulse duration is determined by the modulating signal u (t), which is a big advantage of the pulse-width modulation as it allows producers dit - signaling without distortion in digital form . In this paper we consider only one-sided modulation of . Thus , the analysis of spectra signals PWM determines that the modulated pulse edge can be both front and back - with the amplitude spectrum will be the same.
References:
  1. Baeva N.N., Gordienko V.N., Kuriczy'n S.A. i dr. Mnogokanal'ny'e sistemy' peredachi informaczii / Pod red. N.N. Baevoj i V.N. Gordienko. M.: Radio i svyaz'. 1997.
  2. Karpov M.A., Nefedov V.I., Sigov A.S., Luchnikov P.A. Primenenie e'lektronno-opticheskogo preobrazovatelya izobrazhenij v sisteme «LIDAR» dlya lazernogo zondirovaniya ob''ektov v zhidkix i gazovy'x sredax // Materialy' Mezhdunar. nauchno-texnich. konf. «Fundamental'ny'e problemy' radioe'lektronnogo priborostroeniya». M.: E'nergoatomizdat. 2009. Ch. 4. S. 282-287.
  3. Fedorova E.V., Sy'ropyatova R.Ja., Zamuruev S.N., Gryaz-ny'x  I.V. Signaly' s shirotno-impul'snoj modulyacziej v texnike svyazi // Sb. nauch. trudov «Radioe'lektronika i svyaz'» № 1. M.: Moskovskij gosudarstvenny'j institut radiotexniki, e'lektroniki i avtomatiki (texnicheskij universitet). 2001. S. 115-129.
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