Digitalization of Cross-Country Skiing Training Based on Multisensor Combination

Table 2

Statistics of data acquisition items.

Serial number	Sports event	Technical index requirements
1	Target tracking	1500 track full coverage
2	Track the number of athletes at the same time	3 people
3	Track athlete speed	>5 m/s
4	Position and speed measurement frequency	1 Hz or more
5	Position measurement accuracy	Plus or minus 1 meter
6	Speed measurement accuracy	Plus or minus 1 meter per second
7	Working environment	-40°, gale