Table 2 Assumed parameters of the RRDIAL system.
From: Simulation and analysis of the CO2 range-resolved differential absorption lidar system at 2 μm
Category | Parameter | Value | Unit |
|---|---|---|---|
Transmitter subsystem | On-line wavelength | 2050.981 | nm |
Off-line wavelength | 2051.250 | nm | |
Pulse energy | ≥ 1 | mJ | |
Beam divergence | 0.6 | mrad | |
Receiver subsystem | Telescope diameter | 200 | mm |
Field of view | 1 | mrad | |
Total optical efficiency | 0.3 | – | |
Acquisition subsystem | Quantum efficiency | 0.7 | – |
NEP | ≥ 1.1 × 10–10 | W | |
Configuration subsystem | Background radiation | 2.08365 × 10–4(on-line), 2.08125 × 10–4(off-line) | W/(m2·Sr·nm) |
Filter bandwidth | 2 | nm | |
Range resolution | ≤ 120 | m | |
Coefficient (α, β) | From US model | - | |
Absorption cross-section | From HITRAN database | - |
