1) ranging signal systems
测距信号体制
1.
Based on introduction to several ranging signal systems in NASA and ESA,the deep space ranging signal systems are analyzed and compared,and the primary ideal is proposed.
深空测控通信中,接收信号微弱,信号时延巨大,使得深空测控与地球轨道航天器的测控有很大差异,选择合理的测距信号体制,对深空测控系统具有极其重要的意义。
3) Second signal for ranging
秒信号测距
4) signal system
信号体制
1.
Under the direction of GPS modernization program,the GPS satellite navigation signal system has been developed and improved.
在GPS现代化计划的指导下,GPS卫星导航信号体制得到了不断发展和完善。
2.
ProperSignal system guarantees the GNSS navigation,positioning,time services, communications and range measurement.
信号体制是卫星导航定位系统技术体制中最重要的部分之一,合理的信号体制对于卫星导航定位系统实现其导航,定位,授时,通信和测距等功能和满足性能要求十分关键。
3.
The frequency spectrums of each BOC modulation are given in the end,and these modulation results will have an instructive meaning for GNSS signal system’s design and engineering implementation.
仿真结果对于GNSS信号体制设计和工程实现有重要的指导意义。
5) communication-ranging integration
通信测距一体化
6) signal modulation feature
信号调制体制
补充资料：测距仪联动相机
测距仪联动相机(Range finder camera)指校准组装在照相机里的测距仪，与对焦结构相联动的照相机之总称。35毫米莱卡型照相机虽是原型，但以弹折式皮腔照相机为首，自袖珍照相机到新闻摄影机，在测距方面组装这种结构的照相机，种类不胜枚举。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条