题目内容
（请给出正确答案）
A.作用为多传感器融合，进行更准确的位姿估计
B.可选的传感器数据为IMU、Visual Odometry、Wheel Odometry
C.默认发布robot_pose_ekf/odom_combined消息
D.默认发布odom → base_footprint的tf
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更多“Navigation中有一个robot_ekf_pose软件…”相关的问题
Despite their varied designs, navigation computers used in cars ______.
A．are more or less the same price.
B．provide directions in much the same way.
C．work on more or less the same principles.
D．receive instructions from the same satellites.
A．Enforcing laws controlling navigation, shipping, immigration and fishing.
B．Enforcing laws affecting the privately-owned bests in the U.S.
C．Searching for missing beats and rescuing people.
D．Training people to good swimmers along the beach.
The navigation systems in cars like Lexus, BMW and Audi are mentioned to show ______.
A．the immaturity of the new technology.
B．the superiority of the global positioning system.
C．the cause of price fluctuations in car equipment.
D．the different ways of providing guidance to the driver.
In order to predict distortions, scientists need to______.
A．improve the severity of radio, radar and navigation signals
B．improve the accuracy of the satellite-based systems
C．study the charged particles in the ionosphere
D．study the thick regions in the ionosphere
A．by inputting the exact address.
B．by indicating the location of his car.
C．by checking his computer database.
D．by giving vocal orders to the computer.
A. emergency lighting for occupied areas,navigation lights
B. the driving motors of the emergency bilge pump,fire pumps,and steering gear
C. communications systems and alarm systems
D. all of the above
A.20
B.30
C.40
D.50
