多系统卫星导航信号软件模拟器体系设计  

Architecture design for software simulator of multisystem satellite navigation signal LabWindows/CVI

作　　者：舒展[1,2] 王迪 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191 [2]北京卫星导航中心,北京100094

出　　处：《电子设计工程》2014年第13期48-51,共4页Electronic Design Engineering

摘　　要：与传统信号模拟器相比,软件模拟器具备设计灵活、可扩展、开放性强以及成本低的诸多优点。随着卫星导航的发展,卫星导航体制越来越复杂,通过对多系统不同调制方式的卫星导航信号模型进行分析,迫切需要建立统一的描述方法,减少重复的算法编写。首先提出了一种针对多系统卫星导航信号模拟器描述方法,其次建立了针对不同卫星导航信号体制的描述,给出了信号传播时延、多普勒频移的估计方法。最后,对模拟的信号进行了验证。Compared to conventional navigation signal simulators, software simulator has many advantages, which include flexible design, easy extending, strong openness, and low cost. With the development of satellite navigation, satellite navigation system is getting more and more complicated. Based on the analysis for satellite navigation signal model in different modulation methods of muhisystem, it is very urgent to establish a unified description method, which can reduce duplication writing of algorithm, firstly, description method for multisystem satellite navigation signal simulator is proposed. Secondly, it can describe different systems of satellite navigation signals and provide estimation method for signal transmission delay time and Doppler frequency shift. Finally, the signal of simulation is validated.

关 键 词：卫星导航 信号模拟 多系统 参数计算 

分 类 号：TN967.1[电子电信—信号与信息处理]