电讯技术2018，Vol.58Issue(1)：18-24,7.DOI:10.3969/j.issn.1001-893x.2018.01.004
导航发射信道对双频复用信号质量的影响
Effect of Navigation Transmission Channel on Dual-frequency Multiplexing Signal Quality
摘要
Abstract
In construction of the new generation global navigation satellite system (GNSS),dual-frequency constant envelope multiplexing technology has been widely used.The signal will be distorted during the transmission on the satellite,so it is necessary to analyze the signal quality of different dual-frequency multiplexed signals which have passed through the transmission channel.The actual transmission channel model is established firstly,then the power spectrum,the constellation,the zero-crossing deviation of the phase curve,and correlation loss of the AltBOC(Alternate Binary Offset Carrier),TD-AltBOC (Time Division Alternate Binary Offset Carrier) and ACE-BOC(Asymmetric Constant Envelope Binary Offset Carrier) are mainly analyzed.Comparison among the three modulations shows that ACE-BOC is preferred in considering the acquisition sensitivity.关键词
全球导航卫星系统/双频复用信号/信号质量/发射信道模型Key words
global navigation satellite system(GNSS)/dual-frequency multiplexing signal/signal quality/transmission channel model分类
信息技术与安全科学引用本文复制引用
田野,徐启炳,张立新..导航发射信道对双频复用信号质量的影响[J].电讯技术,2018,58(1):18-24,7.基金项目
国家自然科学基金资助项目(91438107) （91438107）
