Lock-In Amplifier Technology in Laser Gyroscope North Finder of Constant Rate Biasing

Table 3

Experimental data processing results of ten groups repeated north finding.

Experimental groups	The vehicle’s attitudes
	[𝛾]	[𝜃]	[𝜓]
Group 1 results	11.9922°	−14.9921°	276.0142°
Group 2 results	11.9923°	−14.9920°	276.0127°
Group 3 results	11.9923°	−14.9922°	276.0163°
Group 4 results	11.9922°	−14.9920°	276.0162°
Group 5 results	11.9924°	−14.9921°	276.0155°
Group 6 results	11.9923°	−14.9920°	276.0152°
Group 7 results	11.9923°	−14.9920°	276.0162°
Group 8 results	11.9922°	−14.9921°	276.0134°
Group 9 results	11.9923°	−14.9920°	276.0145°
Group 10 results	11.9923°	−14.9921°	276.0157°
The mean of the attitude angles	11.9923°	−14.9921°	276.0150°
The maximum of the heading error	0.0163° (0.978′)