The cost of the system is reduced and the structure is predigested, and it makes the detection system can measure distance, relative velocity and azimuthangle at the same time.
这样做既提高了系统的经济性，简化了结构，又使得系统具有了同时测量目标距离、相对速度和方位角的功能。
2
The azimuthAngle change between the two units can be calculated by once operation according to the deviation angles and relative torsion angles measured with the units at each point.