Satellite navigation system is mainly composed: ____.
A. Satellite system
B. Ground station group
C. Gyroplatform
D. User equipment
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Image matching navigation technology is suitable for: ____.
A. Whole accurate navigation
B. Terminal guidance
C. Integrated navigation
D. Terrain clearance and terrain avoidance
Which of following is about remote-guided missile? ____.
A. The missile is relatively simple
B. Required to detect the information of the target
C. High maneuverability
D. Can change the flight path with the command control
The main characters of passive radar homing guidance are: ____.
A. Can be operated without attention on it after launch
B. Equipped with radar equipment and antenna
C. Less affected by weather and time
D. Strong anti-interference ability
China's TTC system is mainly composed by: ____.
A. Ground control center
B. TTC station
C. Maritime surveying ship
D. Space-based relay satellite
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