Tracking Performance of the Soft Digital Data Transition Tracking Loop
نویسندگان
چکیده
Tliis paper evaluates the steady-state tracking performance of the soft DTTL symbol sy~d:ronizer 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. (Technical Subject Area: Synchronization, and Satellite, and Space Communications ) ——— ‘Designated presenter should the paper be. accepted “ 1 03/10/97 15:22 FAX 206 803 1440 TELEDES I C CORP lzloo2 . . -
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