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9.2.3. Working Principle
This section
Practice test
11 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
3 cards from this lesson. Good the night before a test.
Try these first
- 1.
What do laser pulses do in Airborne Laser Scanning?
Hint
Consider the first step in the scanning process.
- 2.
What is the role of GNSS in ALS?
Hint
Think of it as GPS for the laser!
- 3.
What does ALS stand for?
- Airborne Laser Scanning
- Aerial Laser Sensing
- Alternating Laser Spectrum
Hint
Think about the components involved in aerial data collection.
- 4.
The IMU in ALS helps to measure what?
- True
- False
Hint
Is it related to the movement of the aircraft?
- 5.
Describe a scenario where using ALS could significantly benefit environmental monitoring.
Hint
Think about how mapping elevation impacts disaster preparedness.
- 6.
Discuss the challenges that ALS may face in urban environments and suggest possible solutions.
Hint
Consider the effect of tall buildings on laser pathways.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting