Satellite navigation receiver fault satellite detection method
A satellite navigation and detection method technology, applied in satellite radio beacon positioning system, measurement device, radio wave measurement system, etc., can solve problems such as fault-free satellite realization, complex, complex probability statistics calculation, etc., to reduce computational complexity , the effect of reducing the amount of calculation
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[0028] Such as figure 1 As shown, the method of the present invention is described in detail.
[0029] The invention proposes a satellite navigation receiver fault star detection method. The principle block diagram can be found in the attached figure 1 , The specific implementation is as follows:
[0030] Suppose that the satellite navigation receiver is Beidou single system positioning, that is, the number of systems N sys = 1. The number of satellite navigation receiver tracking channels is 12, that is, the maximum number of satellites processed by a single positioning N svmax = 12. False alarm rate P fa =1.4×10 -6 . The implementation steps are as follows: (1) First, use the Chi-square distribution function to calculate the different fault thresholds under a certain false alarm probability when positioning with different satellite numbers, and store them in the internal memory of the satellite navigation receiver in advance. Use formula
[0031]
[0032] Calculate the numb...
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