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In an inertial navigation system, the principle used to obtain the change in speed is:
  • A
    double integration of position with respect to time.
  • B
    single integration of acceleration with respect to time.
  • C
    double integration of acceleration with respect to time.
  • D
    single integration of position with respect to time.

Summary table of the integration process of the INS and the required inputs: 

Integrate with time ... How many times? Additional Input(s) Output
ACCELERATION  Once Initial SPEED Instantaneous SPEED
ACCELERATION  Once ----- Change in SPEED (velocity)
ACCELERATION  TWICE Initial POSITION

Initial SPEED
Instantaneous POSITION
ACCELERATION TWICE ----- POSITION
SPEED   ONCE ----- DISTANCE traveled 

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