
4 结论 为解决新型调制信号具有多峰特性的问题,本文提出了一种针对BOC(15,2.5)调制方式的无模糊同步方法。该方法通过设计一个本地辅助函数,与BOC调制信号自相关函数作和,按照一定原则构造出新的无边峰合成相关函数,实现信号的无模糊同步过程。仿真结果表明,本文提出的无模糊同步方法可以解决在同步过程中产生的误捕和误锁问题,有效提高了信号同步可靠性。下一步工作重点是分析在多径的情况下对于该方法的影响,分析是否适用于多径环境,这有利于实现真实处理信号同步过程。 参考文献 [1] FINE P,WILSON W.Tracking algorithm for GPS offset carrier signals[C].Institute of Navigation National Technical Meeting,San Diego,CA,1999. [2] YAO Z,LU M Q,FENG Z M.Pseudo-correlation-function based unambiguous tracking technique for sine-BOC signals[J].IEEE Trans.on Aerospace and Electronic Systems,2010,46(4):1782-1796. [3] YAO Z,LU M Q.Side-peaks cancellation analytic design framework with applications in BOC signals unambiguous processing[C].Proc.of the ION International Technical Meeting,2011:775-485. [4] JUANG J C,KAO T L.Generalized discriminator and its applications in GNSS signal tracking[C].Proc.of the ION GPS/GNSS,2010:3251-3257. [5] BETZ J W,CAPOZZA P,FITE J.System for direct acquisition of received signals[P].USA:7447259B2,2008. [6] 杨力,潘成胜,薄煜明,等.基于相关重构的BOC调制信号捕获新方法[J].宇航学报,2009,30(4):1675-1679. [7] 胡刚毅,赵同林,陈适,等.BOC信号中一种新型的无模糊直接捕获算法[J].电子技术应用,2013,39(12):122-125. [8] JULIEN O,MACABIAU扁平线圈电感厂家 C,CANNON M,et al.ASPeCT:unambiguous sine-BOC(n,n) acquisition/tracking technique for navigation applications[J].IEEE trans.on Aerospace and Electronic System,2007,43(1):150-162. [9] KAPLAN E D,HEGARTY C J.GPS原理与应用[M](第二版).寇艳红,译.北京:电子工业出版社,2007. [10] KIM S,YOO S,YOON S,et al.A novel unambiguous multipath mitigation scheme for BOC(kn,n) tracking in GNSS[C].Applications and the Internet Workshops,2007.SAINT Workshops 2007.International Symposium on,January 2007:57. [11] KIM S,YOO S,YOO S H,大电流电感et al.New correlation functions for CBOC satellite signal synchronization[C].In Advanced Communication Technology,2008.ICACT 2008.10th International Conference on,vol.2,February 2008:1045-1047. [12] BURIAN A,LOHAN E S,RENFORS M.Sidelobes cancel lation method for unambiguous tracking of Binary-Offset-Carrier modulated signals[C].In CDROM Proc.Of 3rd European Space Agency(ESA NAVITEC 2006), Noordwijk,the Netherlands,2006. [13] Chen Huihua,Jia Weimin,Yao Minli,et al.A novel unambiguous tracking method for Sine-BOC(2n,n) modulated signals[C].Signal Processing,Communications and Computing(ICSPCC),2011IEEE International Conference on,2011:344-348.
如何看懂电路图(五):脉冲电路详解 4月08日 第三届·无线通信技术研讨会 立即报名 12月04日 2015•第二届中国IoT大会 精彩回顾 10月30日ETF•智能硬件开发技术培训会 精彩回顾 10月23日ETF•第三届 消费 基于MC68HC908MR16数字化控制的不间断电源系统0 引言 随着信息处理技术和微电子等精密技术的蓬勃发展,对供电系统质量和可靠性的要求也越来越高,在一些用电质量要求较高的场合,急需一种电压稳定、能同步跟踪电网频率、高可靠性的交流不间断电源。UPS系英 依据所知条件仿制产品(电感)PM2110_series.pdf
朋友们,如文件所列条件,怎么选用磁环,从而完成产品制作.求详细计算方法和步骤.谢谢!
磁环用的铁粉芯
根据电感量和电流的大小选磁环和铜线
3/3 首页 上一页 1 2 3 |