| 40 | | |
| 41 | | things one can detect.. maybe.. |
| 42 | | - pulse stretching (return pulse longer than laser pulse |
| 43 | | - slopes |
| 44 | | - low vegetation (ie. may need to adjust "ground" peak downwards a little) |
| 45 | | - indication of biomass by evaluating area under peak |
| 46 | | - better vertical resolution/distinction of objects |
| 47 | | |
| 48 | | angle of laser may make a difference (flat ground at nadir is a slope at edge of fov, or cutting through vegetation) |
| | 37 | == Benefits of full waveform == |
| | 38 | |
| | 39 | Things one can detect.. maybe..: |
| | 40 | * pulse stretching (return pulse longer than laser pulse), indicating: |
| | 41 | * slopes (angle of slope means a longer return than a flat bounce) |
| | 42 | * detection of low vegetation (i.e. the discrete return may need to adjust "ground" peak downwards a little) |
| | 43 | * note the angle of the laser makes a difference (flat ground at nadir is a slope at edge of fov, or cutting through vegetation) |
| | 44 | * indication of biomass by evaluating area under peak curve |
| | 45 | * better vertical distinction of objects |
| | 46 | * discrete returns are based on the intensity exceeding a threshold then finding a peak ; after this peak there is a fairly long period where no secondary peaks can be detected |
| | 47 | * FWD allows you to implement your own peak finding algorithm that can distinguish these |