Scenario: The vehicle’s position on the map of the navigation system

Stimulus: is updated.

Reaction: The current position of the vehicle is determined by extrapolation and not GPS data.

Metric: The extrapolated position is recalculated with a frequency greater than 10Hz.

Background: The GPS position retrieval rate via satellite might be insufficient low, such that in-between positions are determined using extrapolation.

Context/Background

The system is a vehicle navigation system that displays the vehicle’s position on a map. GPS data might be retrieved at an insufficient rate for smooth position updates. To compensate for this, the system uses extrapolation to determine in-between positions. This extrapolation is crucial for providing a smooth and accurate representation of the vehicle’s movement on the map.

Source

The vehicle’s position on the map of the navigation system is being updated. The current position is determined by extrapolation rather than direct GPS data.

Metric/Acceptance Criteria

The extrapolated position of the vehicle must be recalculated with a frequency greater than 10Hz.

This requirement will be considered met when:

• The system consistently maintains a position update rate higher than 10 times per second
• This update rate is maintained under various driving conditions (e.g., different speeds, urban vs. rural environments)
• The transition between extrapolated positions and new GPS data is smooth, with no visible jumps on the map