Someone the test described in this article may seem trivial. But it still would have to be done to be sure that the solution is working. Now we can safely say that short-term interference in the L1 band is not terrible for us.
The first article will introduce you to the course. Briefly: the F9P satellite navigation receiver, which can operate under L1 interference, has recently become available, including to the masses. Yesterday tests of this receiver were carried out under the influence of motion disturbance.
Tests were conducted away from busy roads. The interference was turned on for only ten seconds, when there were no moving vehicles in direct line of sight. This greatly reduced the likelihood to prevent anyone from even a little. I do not exclude that this could happen, I apologize for that. I hope to make amends by publishing this important, in my opinion, for all technical article.
The receiver with the antenna was installed on the front of the car under the windshield. At first, a small conventional circle was slowly made without interference with a diameter of about 15 meters. Then the same conditional circle was made with the noise turned on. A “conditional circle” is simply a turn on a single-lane road in each direction from one curb to another and back.
The process of testing you can exactly reproduce the log file in the program u-center 19.
Minute video from the screen can be viewed here .
The real field video with some comments for two and a half minutes is here . I apologize, the video is terrible, I do not know how to shoot well. Sometimes it turns out this ... If you are a subtle nature, do not look. But the interested engineer will be able to consider the place of testing and iron.
Iron is an L1 / L2 / L5 antenna of its own design with an F9P receiver on a single board.
I want to note that the side of the road, and maybe the lane, are easily determined. Accuracy is sufficient and under interference.
Now, perhaps, even on the Kremlin Embankment, satellite navigation will work.
Source: https://habr.com/ru/post/452122/
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