Table 6.

Capability indicators of technical defence.

Ship’s automatic navigation capability	electronic chart update (times/month)
	GPS accuracy
Bridge information monitoring capability	coverage of monitoring indicators
	effective information fusion rate
Radar monitoring capability	determination accuracy
	anti-interference rate
Emergency communication capability	information fidelity
	channel capability (kb)
	communication delay (ms)
Route abnormal alarm capability	alarm value (deviation degree)
	number of alarms (times/day)
Automatic collision avoidance capability	accuracy of generation
	probability of scheme adoption
Meteorological monitoring capability	accuracy within 1 year
Fault tolerance of risk alarm system	fault tolerance degree
Network protection capability	protection software and hardware
	network paralysis response plan
Video surveillance coverage capability	coverage
Unsafe behaviour recognition capability	intelligent recognition rate
Ship–shore cooperative monitoring capability	VTS visibility in the jurisdiction
	visualization degree of remote sensing information
	sum of GNSS delay error and inherent error (ms)
	LRIT information protection mechanism
	GMDSS false alarm rate