Table 2 Criteria for determining the intersection of line segments AB and CD.
From: UWB/MEMS IMU integrated positioning method based on NLOS angle discrimination and MAP constraints
Category | Diagram | Interpretation |
|---|---|---|
\(D1\) × \(D2 = 0\) and \(D3\) × \(D4 < 0\) |
| Line segment CD intersects with an internal contact on AB |
\(D1\) × \(D2 = 0\) and \(D3\) × \(D4 = 0\) |
| Line segment AB intersects with an internal contact on CD |
\(D1\) × \(D2 < 0\) and \(D3\) × \(D4 < 0\) |
| Line segment AB intersects with line segment CD |
\(D1\) × \(D2 = 0\) and \(D3\) × \(D4 = 0\) |
| Line segment AB and line segment CD intersect at an endpoint or are collinear |
