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IRNSS-1A: signal and clock characterization of the Indian regional navigation system

机译：IRNSS-1A：印度区域导航系统的信号和时钟特征

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摘要

An initial characterization of the L5 and S-Band navigation signals transmitted by the first satellite of the Indian regional navigation satellite system (IRNSS) is presented. In the absence of a public signal specification, a 30 m high-gain antenna has been used to record the signal spectrum and the modulated chip sequences. For the IRNSS standard positioning service, use of a Gold ranging code is confirmed and relevant shift register parameters for the two frequencies are identified. Based on a prototype receiver, L5 single-frequency code and phase observations of IRNSS-1A have also been collected. The tracking performance is described, and the measurements are used to characterize the short-term clock stability of IRNSS-1A.
机译：介绍了印度区域导航卫星系统（IRNSS）的第一颗卫星发射的L5和S波段导航信号的初始特征。在没有公共信号规范的情况下，已经使用30 m高增益天线来记录信号频谱和调制码片序列。对于IRNSS标准定位服务，确认使用了Gold测距码，并确定了两个频率的相关移位寄存器参数。基于原型接收机，还收集了L5单频代码和IRNSS-1A的相位观测值。描述了跟踪性能，并将测量结果用于表征IRNSS-1A的短期时钟稳定性。

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