Could you please share your GPS param file for OAKBAT dataset?

[tortuga3750]

I have tried, but the I/Q plot (discrete time scatter plot) does not look right. Did I do this correctly?

If you don't mind, could you please share your GPS param file for OAKBAT dataset?

[Imtiaz08]

Can you share your own file so that we can check if you have set the right params or not

[tortuga3750]

Can you share your own file so that we can check if you have set the right params or not

thank you. L109 ~ 115 are the area that I think we need to fix a bit.

param_GPSL1_OAKBAT_cleanStatic_0630 (copy).txt

[21syl]

您能否共享自己的文件，以便我们检查您是否设置了正确的参数

谢谢。L109 ~ 115 是我认为我们需要稍微修复的区域。

param_GPSL1_OAKBAT_cleanStatic_0630 （副本.txt I have recently been working with the same receiver to process the OAKBAT dataset. Following the parameter settings provided for the TEXBAT dataset, I only changed the sampling rate and loop bandwidth. However, I encountered the same tracking issues as reported.

Could you please let me know if you have found a solution to this problem? I would greatly appreciate your assistance.

Thank you very much!!

[zahidulbhuiyan]

Hi! Tortuga,

Just by looking at the tracking plots, I do not see any particular issue with the receiver's tracking. There is indeed some spikes in the position deviation, which should not be there in nominal outdoor condition. As a minimum, you can smooth out the position deviation with some averaging filter. Good luck!

Zahid

[21syl]

Hi Zahid,

Thanks for your reply. I’ve figured out the issue I had with the distribution in the upper-left IQ plot. Normally, the IQ plot for GPS L1 signals should show two circles, but I observed three. After analyzing, I found that this was due to issues with the signal quality in the initial segment. I bypassed the first 15 seconds of the signal and reprocessed it, which resolved the issue and everything returned to normal.

Thank you again for your help!

Best regards, Yili Song

[zahidulbhuiyan]

Hi! Yili,

Great that you solved the problem yourself. It is always recommended to skip few seconds of data if possible. However, I processed a short portion of data with your configuration file, and got an expected result. Please see the ENU deviation result for your reference.

Good luck!

Best Regards

Zahid

[tortuga3750]

Hi! Tortuga,

Just by looking at the tracking plots, I do not see any particular issue with the receiver's tracking. There is indeed some spikes in the position deviation, which should not be there in nominal outdoor condition. As a minimum, you can smooth out the position deviation with some averaging filter. Good luck!

Zahid

thank you!

[qqqhbg]

您能否共享自己的文件，以便我们检查您是否设置了正确的参数

谢谢。L109 ~ 115 是我认为我们需要稍微修复的区域。 param_GPSL1_OAKBAT_cleanStatic_0630 （副本.txt 我最近一直在与同一个接收器合作处理 OAKBAT 数据集。按照为 TEXBAT 数据集提供的参数设置，我只更改了采样率和循环带宽。但是，我遇到了与报告相同的跟踪问题。

您能否告诉我您是否找到了解决此问题的方法？我将非常感谢您的帮助。

谢谢！！

Hello, how was your ENU error plot simulated? I encountered anomalies in my simulation after setting the parameters for this plot.

[qqqhbg]

嗨，扎希德，

感谢您的回复。我已经弄清楚了左上角 IQ 图中的分布问题。通常，GPS L1 信号的 IQ 图应该显示两个圆圈，但我观察到了三个。经过分析，我发现这是由于初始片段的信号质量问题造成的。我绕过了信号的前 15 秒并重新处理它，这解决了问题，一切都恢复正常。

再次感谢您的帮助！

此致，Yili Song Hello, I have a question to ask you. My other plots are fine, but this one shows an anomaly. Could you please tell me what might be the issue?

[zahidulbhuiyan]

Hi!

Can you check if the following parameters in the user configuration file were rightly assigned?

---

% True/reference user position, if available nav,trueLat,60.161086788889,
nav,trueLong,24.545448080556, nav,trueHeight,54.1640000026673,

You can offer the true location for a static scenario. In case of a dynamic scenario, you can use your own script for performance comparison.

Best Regards

Zahid