搜索结果: 1-5 共查到“航空、航天科学技术 BOC”相关记录5条 . 查询时间(0.078 秒)
Multipath Benefits of BOC vs. BPSK Modulated Signals Using On-Air Measurements
Multipath Benefits BOC vs. BPSK Modulated Signals On-Air Measurements
2015/6/24
As air traffic continues to grow, the Global Navigation Satellite System (GNSS) plays an increasingly important role in enabling the air space to efficiently handle the increase load. In fact, it will...
Direct Comparison of the Multipath Performance of L1 BOC and C/A using On-Air Galileo and QZSS Transmissions
multipath BOC MBOC
2015/6/24
New Global Navigation Satellite System (GNSS) satellites will bring common, interoperable GNSS signals on L1.These new signals, L1C Global Positioning System (GPS)/Quasi-Zenith Satellite System (QZSS)...
基于伪相关函数的BOC无模糊跟踪性能分析
BOC调制 伪相关函数 无模糊跟踪 抗多径
2014/4/14
BOC(Binary-Offset-Carrier)调制广泛应用于全球导航卫星系统中，但由于BOC自相关函数的多峰导致传统码跟踪环路存在模糊性。伪相关函数(Pseudo Correlation Function, PCF)方法在本地采用两个特殊的参考信号和非线性处理以获得无模糊的相关函数。根据一种PCF方法本地参考波形设计的充分条件，推导了其无模糊函数的数学形式，并着重分析了其跟踪和抗多径性能与本...
BOC导航接收机伪码测距零值分析
BOC导航接收机 零值 伪码测距 软件接收机
2014/4/14
伪码测距零值是现代卫星导航领域的重要指标，目前对于高精度BOC导航接收机的信道建模和仿真尚没有一般性的量化分析方法。针对这种情况，提出了基于副载波相位消除跟踪算法的零值估计模型，并推导了任意信道特性滤波器与伪码测距零值的关系式，然后定量地分析了信道特性对于测距零值的影响；最后在软件接收机上进行了仿真检验。
Comparison between Galileo CBOC Candidates and BOC(1,1) in Terms of Detection Performance
Galileo CBOC Candidates BOC(1,1) Detection Performance
2009/9/3
Many scientific activities within the navigation field have been focused on the analysis of innovative modulations for both GPS L1C and Galileo E1 OS, after the 2004 agreement between United States an...