A two-stage acquisition scheme based on multiple correlator outputs for UWB signals

IEICE Electronics Express

Iickho Song¹  Dahae Chong²  Seokho Yoon²  Youngpo Lee² 

[1] Department of Electrical Engineering, Korea Advanced Institute of Science and Technology;School of Information and Communication Engineering, Sungkyunkwan University

关键词: acquisition;    detection;    ultra-wideband (UWB);   

DOI  :  10.1587/elex.8.436

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)Cited-By(1)In ultra-wideband (UWB) channels, the signal energy in the acquisition receiver spreads over correlator outputs due to rich multipaths, making the output of each correlator have only a small portion of the total energy. To enhance the acquisition performance for UWB signals by exploiting the signals spread over a number of correlator outputs, this paper proposes a two-stage acquisition scheme. In the proposed scheme, decision variables are formed by combining a multiple of correlator outputs, allowing it possible to make use of the signal energy spread over the outputs jointly. Simulation results show that the proposed scheme can provide a gain of about 0.6dB over the conventional schemes in various UWB channel environments.

【 授权许可】

Unknown