Signal selection method of a directional diversity for VSB receiver

Jae Hwui Bae; JuYeun Kim; Jong Soo Lim; Soo In Lee; Dong Seok Han

doi:10.1117/12.613300

16 September 2005 Signal selection method of a directional diversity for VSB receiver

Jae Hwui Bae, JuYeun Kim, Jong Soo Lim, Soo In Lee, Dong Seok Han

Proceedings Volume 5910, Advanced Signal Processing Algorithms, Architectures, and Implementations XV; 591012 (2005) https://doi.org/10.1117/12.613300
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We propose an output signal selection method for the directional diversity in VSB receiver which is to improve the reception performance of VSB system in severe Rayleigh fading channel. The VSB system has only about 0.3% of known training signal for the receiver in a data field and the reception performance of VSB receiver is degraded significantly when there are near-0 dB ghosts in received signal. To overcome this problem, the directional diversity is suggested. In directional diversity the selection of an output signal with best channel condition in point of VSB equalizer is very important to improve VSB reception performance. For the selection of the optimal signal, we extracted channel profiles in time domain for all the signals by correlating the PN511 sequence in VSB field sync and selected one signal by comparing the channel profiles. The simulation results show that the proposed method selects a signal with the best channel condition among the signals, so the reception performance of the VSB system can be improved in severe Rayleigh channels.

Citation Download Citation

Jae Hwui Bae, JuYeun Kim, Jong Soo Lim, Soo In Lee, and Dong Seok Han "Signal selection method of a directional diversity for VSB receiver", Proc. SPIE 5910, Advanced Signal Processing Algorithms, Architectures, and Implementations XV, 591012 (16 September 2005); https://doi.org/10.1117/12.613300

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KEYWORDS

Vestigial sideband modulation

Receivers

Signal processing

Computer simulations

Antennas

Optical correlators

Signal attenuation

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