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EURASIP Journal on Advances in Signal Processing

Table 1 Comparison between the GNSS-derived sea level time series and the reference tide gauge record

From: Sea level measurements using multi-frequency GPS and GLONASS observations

  

GPS

GLONASS

  

L1

L2

L1

L2

 

Points (nr)

1,516

1,229

1,254

882

SNR

Corr. coeff.

0.97

0.86

0.96

0.87

 

RMS

4.0

9.0

4.7

8.9

 

Mean diff.

3.2

7.5

3.6

7.0

 

Points (nr)

1,534

1,495

1,408

1,286

Phase delay

Corr. coeff.

0.95

0.95

0.96

0.96

 

RMS

3.5

3.5

3.3

3.2

 

Mean diff.

2.3

2.4

2.2

2.3

  1. The table shows the correlation coefficients, RMS differences, mean (absolute) differences, and the number of data points available for the comparison, for sea level from SNR analysis and the phase delay analysis of GPS and GLONASS L1 and L2 data compared with tide gauge records. All RMS values and differences are given in centimeters.
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