MENG Qing-feng(孟庆丰)1,2, JIAO Guo-tai（焦国太）1, XUE Qiang-qiang（薛 强强）
1. Robotics Research Center, North University of China, Taiyuan 030051, China;
Abstract： In order to ensure that Chinese BeiDou satellite navigation system ru ns smoothly, the assessment of signal quality has become a significant task. Alt ernative binary offset carrier (AltBOC) is BeiDou B2 frequency signal. The acqui sition of BeiDou signal is processed in off-line mode and the evaluation is perf ormed by taking signal power spectrum, eye diagram, constellation, correlation, loss and s-curve deviation on AltBOC as signal quality evaluation parameters. Th e results illustrate that the new system signal, namely AltBOC signal, has the b est performance in code tracking precision, anti-jamming and anti-multipath.
Key words： signal quality assessment; alternative binary offset carrier(Alt-BOC ); correlation loss；s-curve bias
CLD number： TN911.7 Document code： A
Article ID： 1674-8042(2013)03-0289-05 doi： 10.3969/j.issn.1674-8042.2013.03.0 19
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