What errors does relative positioning eliminate?

The errors eliminated include systematic errors, random errors, gross errors, multipath errors, ionospheric delay errors, tropospheric delay errors, satellite clock errors, receiver clock errors, ephemeris errors, and Doppler effect error. Detailed introduction: 1. System error: Error caused by defects in the measuring instrument or the measuring method itself. For example, inaccuracies of instruments, deviations in measurement methods, etc.; 2. Random errors: errors caused by various unpredictable factors. For example, changes in environmental conditions, the influence of measuring personnel, etc.; 3. Gross error: errors caused by obvious errors, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Relative positioning technology determines the absolute position of objects by measuring the relative position between them, which can eliminate or reduce the following errors:

1. System error: due to measuring instruments or Errors caused by defects in the measurement method itself. For example, the inaccuracy of the instrument, the deviation of the measurement method, etc.

2. Random error: Error caused by various unpredictable factors. For example, changes in environmental conditions, influence of measuring personnel, etc.

3. Gross error: Error due to obvious errors. For example, abnormal values ​​in measurement data, errors in the measurement process, etc.

4. Multipath error: Error caused by the influence of multiple factors during the propagation process of the signal. For example, radio waves are affected by refraction and reflection during propagation.

5. Ionospheric delay error: An error caused by the effect of the ionosphere on the propagation speed of radio waves.

6. Tropospheric delay error: Error caused by the influence of the troposphere on the propagation speed of radio waves.

7. Satellite clock error: Error caused by the inaccuracy of satellite atomic clocks.

8. Receiver clock error: Error caused by the inaccuracy of the receiver atomic clock.

9. Ephemeris error: Error caused by inaccurate satellite orbit prediction.

10. Doppler effect error: Error caused by the Doppler frequency shift of satellite signals.

Through relative positioning technology, these errors can be reduced to an acceptable range, thereby improving positioning accuracy.

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