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Questions and Answers
What is variation in the missile's guidance system?
What is variation in the missile's guidance system?
- The difference between where the missile is and where it should be
- The difference between where the missile should be and where it wasn't
- The difference between where the missile is and where it wasn't (correct)
- The difference between where the missile should be and where it is
What is the purpose of error in the missile's guidance system?
What is the purpose of error in the missile's guidance system?
- To help the missile identify where it is
- To help the missile correct its position (correct)
- To help the missile identify where it should be
- To help the missile generate corrective commands
How does the missile's guidance computer determine its position?
How does the missile's guidance computer determine its position?
- By subtracting where it should be from where it wasn't
- By knowing where it is and where it should be (correct)
- By subtracting where it is from where it isn't
- By generating corrective commands to move the missile to where it isn't
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Study Notes
- The missile knows its position by knowing where it isn't
- Deviation is obtained by subtracting where it is from where it isn't
- Corrective commands are generated to move the missile to where it isn't
- The missile must also know where it was
- Variation is the difference between where the missile is and where it wasn't
- Variation may also be corrected by the guidance subsystem
- The missile subtracts where it should be from where it wasn't to obtain deviation and variation
- This is called error
- Error helps the missile correct its position
- The missile's guidance computer uses this scenario to determine its position
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