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BeiDou B1I signal #405
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hey, someone started working on it in a similar project. looks like he stopped.. |
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可以一样调制,仅仅B1I可看做bpsk |
非常感谢。我根据项目: (https://github.com/yangfan852219770/beidou-sdr-sim) 和GPS-SDR-SIM调制出了B1I信号,但是我在使用动态坐标生成的信号会出现导航电文读错的情况,但静态坐标不会,而且计算的伪距错误。 |
Interesting constellation and Doppler diagrams. Which software receiver did you use to verify the simulated BeiDou signals? |
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我对照GPS-SDR-SIM对D1导航电文进行了完善,以及更新子帧那里。我使用的是GNSS-SDR软件接收机和GNSS-SDR-monitor监视器。 |
Thank you for the help with your code! The software I'm using is a GNSS-SDR software receiver and a GNSS-SDR-monitor. The simulated GPS signals are perfectly solved, but the BeiDou signals show the above problem. |
你可以用离线的软件接收机去解析试一下,看看是不是子帧的更新有问题 |
我准备寻找其他软件接收机测试一下。GNSS-SDR对北斗B1I信号进行测试时可能存在一个70-80 ms的信号传播时延,导致有一个相当大的接收机钟差,会让伪距存在负值,但不影响定位。 |
Has any expert modeled the Beidou B1I signal. Can the BeiDou B1I signal be modulated similarly to GPS? I would appreciate if anyone can guide or provide references. Thanks!
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