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DUSTER is a monostatic biaxial lidar system. Emitter consists of a 20Hz Nd:YAG laser (Brilliant da Quantel SA). Receiving system uses a Cassengrain telescope with primary mirror diameter of 35 cm. Light is split to 4 detection channels: 1064 nm, 532 nm (parallel), 532 nm (perpendicular) and 355 nm, all read by LICEL hardware. Vertical resolution is 7.5m.
| Transmitter | Specification |
|---|---|
| Laser | Q-switched Nd:YAG |
| Laser wavelength transmitted | 1064 nm, 532 nm parallel named (p), 532 nm perpendicular named (s) and 355 nm |
| Laser pulse energy | 400 mJ (1064); 200 mJ (532); 133 mJ (355) |
| Pulse duration | 7 ns |
| Pulse repetition rate | 20 Hz |
| Laser beam divergence | 0.5 mrad |
| Beam Expander | 5X |
| Periscope and output mirrors | |
| Receiver | Specification |
| Telescope type | 300 mm Cassegrain carbon-plastic |
| Mirror diameter | 33 cm |
| Focal ratio | |
| FOV | |
| Detector | PMT (300 – 900 nm) e APD (1064 nm) |
| Interference filter | |
| Data Acquisition | LICEL transient recorder 20 MHz/12 bit |
| Range resolution | 7.5 m |