# Blind Spot Detection Radar System Design for Safe Driving of Smart Vehicles
## 5 BSD Radar System Performance Test
### Performance Test Requirements  
The performance test of the designed BSD radar is validated by accurately issuing danger warnings to the driver when a target vehicle enters the BSD area of the radar installed on the test vehicle in real-world road situations. Therefore, danger warning scenarios for the performance test can be defined longitudinally and laterally based on the vehicle's driving and lane-changing in actual road conditions. The warning scenarios can be set using two different cases. Figure 15 shows a conceptual diagram to explain the BSD radar warning scenarios. Using this, the scenarios were defined in accordance with the ISO 17387 standard for BSD radar specifications.  
Case 1. Longitudinal detection performance test  
* Target vehicle overtaking test vehicle
* The warning should not be activated while the target vehicle is behind Line A.
* The warning display should be activated within 500 ms after the front of the target vehicle passes Line B.
* The warning display should be maintained from the moment the front of the target vehicle passes Line B until the rear of the target vehicle completely exits Line C.
* The warning display should be deactivated within 1 s after the rear of the target vehicle completely exits Line C.
* Test vehicle overtaking target vehicle
* The warning should not be activated while the target vehicle is behind Line E.  
Figure 15: Conceptual Diagram for BSD Radar Warning Scenarios.  
The warning display should be activated within 500 ms after the front of the target vehicle passes Line D.
* The warning display should be maintained from the moment the front of the target vehicle passes Line D until the rear of the target vehicle completely exits Line 1. Case 2. Lateral detection performance test
* Target vehicle driving from left to right
* The warning should not be activated until the target vehicle is completely positioned to the left of Line M.
* The left warning display should be activated within 500 ms after the right end of the target vehicle passes Line L.
* The warning display should be maintained from the moment the right end of the target vehicle passes Line L until the left end of the target vehicle completely passes Line 1.
* The left warning display should be deactivated within 1 s after the left end of the target vehicle completely passes Line 1.
* When the warning is deactivated, the system should not issue a warning while the target vehicle is positioned between Line K and Line G.
* The warning display should be maintained from the moment the right end of the target vehicle passes Line G until the left end of the target vehicle completely passes Line 1.
* The right warning display should be deactivated within 1 s after the left end of the target vehicle completely passes Line 1.
* Target vehicle driving from right to left
* The warning should not be activated until the target vehicle is completely to the right of Line I.
* The right warning display should be activated within 500 ms after the left end of the target vehicle passes Line H.
* The warning display should be maintained from the moment the left end of the target vehicle passes Line H until the right end of the target vehicle completely passes Line 1.
* The left warning display should be deactivated within 1 s after the right end of the target vehicle completely passes Line 1.
* When the warning is deactivated, the system should not issue a warning while the target vehicle is positioned between Line K and Line G.
* The left warning display should be activated within 500 ms after the left end of the target vehicle passes Line K.
* The warning display should be maintained from the moment the left end of the target vehicle passes Line K until the right end of the target vehicle completely passes Line 1.
* The left warning display should be deactivated within 1 s after the right end of the target vehicle completely passes Line 1.