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Module 2: Position and velocity measurment

20242m

MARG sensor is abbreviated as:
(i) Magnetic Angular Rate and Gravity
(ii) Magnitude Angular Rate and Gravity
(iii) Magnetic Angular Resistance Gravity
(iv) None of the above

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Answer

Correct Option: (i) Magnetic Angular Rate and Gravity

Explanation

MARG = Magnetic, Angular Rate, and Gravity sensor.

Components:

  • M = Magnetometer (magnetic field, heading)
  • A = Angular Rate = Gyroscope (angular velocity)
  • R = Rate (redundant) - sometimes expanded as Magnetic
  • G = Gravity = Accelerometer (gravity vector)

MARG = 9-DOF IMU: 3-axis magnetometer + 3-axis gyro + 3-axis accelerometer. Used for orientation estimation (AHRS) via sensor fusion (complementary / Kalman).

Other expansions (Magnitude, Resistance) are incorrect.

Final Answer

Magnetic Angular Rate and Gravity → Option (i).

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