https://www.catapultsports.com/blog/sample-rate-satellite-athlete-tracking-technologies
Looks like Catapult is responding to marketing efforts by Statsports claiming their device is more accurate because their sampling frequency is higher at 18Hz?
Another article I found whilst researching on this..
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0192708
"For the 10 Hz GPS, 18 Hz GPS, and 20 Hz LPS, the relative loss of data sets due to measurement errors was 10.0%, 20.0%, and 15.8%, respectively. This study shows that 18 Hz GPS has enhanced validity and reliability for determining movement patterns in team sports compared to 10 Hz GPS, whereas 20 Hz LPS had superior validity and reliability overall. However, compared to 10 Hz GPS, 18 Hz GPS and 20 Hz LPS technologies had more outliers due to measurement errors, which limits their practical applications at this time."
Comparison with the competition, page-55
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