Tracking performance of the soft digital data transition tracking loop

Author

Million, S. ; Hinedi, S.

Author_Institution

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

Volume

1

fYear

1997

fDate

8-12 Jun 1997

Firstpage

26

Abstract

This paper evaluates the steady-state tracking performance of the soft DTTL symbol synchronizer which is a low SNR approximation of the hyperbolic tangent nonlinearity in the in-phase channel. The normalized s-curve, slope of the s-curve, and normalized noise density are derived and compared to the hard DTTL which is a high SNR approximation of the nonlinearity. Moreover, the symbol SNR region where the steady-state timing jitter of the soft DTTL outperforms that of the hard DTTL is determined

Keywords

digital radio; jitter; noise; radio receivers; synchronisation; telecommunication channels; tracking; digital radio communication; hard DTTL; hyperbolic tangent nonlinearity; in-phase channel; low SNR approximation; normalized noise density; normalized s-curve; s-curve slope; satellite receivers; soft DTTL symbol synchronizer; soft digital data transition tracking loop; steady-state timing jitter; steady-state tracking performance; symbol SNR; Binary phase shift keying; Delay estimation; Detectors; Jitter; Laboratories; Propulsion; Signal to noise ratio; Steady-state; Timing; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1997. ICC '97 Montreal, Towards the Knowledge Millennium. 1997 IEEE International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-3925-8

Type

conf

DOI

10.1109/ICC.1997.604938

Filename

604938