The Operations Screen allows the user to customize the lidar simulation operation. The LSM only supports a coherent lidar type at this time. Other types of lidars, such as incoherent (direct detection) and DIAL, are being incorporated into the model under various contracts throughout 1998.
SIMULATION RUN TYPE
This section of the operations screen allows the user to choose various Lidar Simulation Model products for the simulation. However, some products are currently only produced by stand-alone models that reside in the Toolbox or Configuration Screen.
Laser Shot Coverage
The LSM creates a data file (LSM.SCV) containing the locations of the laser shot locations in latitude and longitude as a function of time. Shot coverage files are created from the stand-alone model from the configure inputs screen.
Power Budget
The LSM creates a data file (LSM.PWB) containing the power budget of a satellite orbit from within the LSM. The Power Budget Model is operational as a stand-alone model in the Toolbox.
Input Winds at Shot Locations
The LSM creates a data file (LSM.ILS) containing the atmospheric winds at the laser shot locations.
Line-of -Sight (LOS) Laser Products
The LSM creates a data file (LSM.LV1) containing the simulated line-of-sight lidar measurements and associated products.
Horizontal Wind Products
The LSM creates a data file (LSM.LV2) containing the simulated horizontal winds and associated products.
SIMULATION TIME
The time length for the simulation. The user can enter in hours, minutes or seconds.
RANDOM DATA SEED
An integer to start the random data generator.
ATMOSPHERIC FIELD
The type of atmospheric library that will be used in the simulation.
Global Scale
The simulation will be using a global atmospheric database.
Regional Scale
The simulation will be using a mesoscale atmospheric database.
ATMOSPHERIC PROCESSING LEVELS
The atmospheric levels for simulated winds.
All Levels
The LSM will compute winds at all atmospheric levels of the atmospheric library.
User Defined
The LSM will compute winds at user defined atmospheric levels.
SHOT COVERAGE PLACEMENT
The method that the LSM will use to process laser shot information.
Grid Based
All simulated winds are computed from laser shot in a grid cell.
Raster Mode
All simulated winds are computed from a laser shot scan pattern moved around in a raster direction within a single grid cell in a Monte Carlo format.
Random Mode
All simulated winds are computed from laser shot scan pattern moved around in a random direction within a single grid cell in a Monte Carlo format.
GRID AREA SIZE PROCESSING
The size of the grid that the LSM will use to process LOS winds to compute horizontal winds.
Meso/Global Grid
The LSM uses the grid size of the input atmospheric field.
User Defined
The LSM uses the user's defined grid size.
HORIZONTAL WIND PROCESSING MODEL
The type of horizontal wind model the LSM will use.
High Resolution
The LSM uses Multi-paired algorithm to match the closest forward shot with the closest aft shot.
MPA - Grid Based
The LSM uses the Multi-paired algorithm to pair all laser shots in a grid area.
Least Squares - Grid Based
The LSM uses the Least Squares Model to pair all laser shots in a grid area.
| This page managed by saw@swa.com | Last modified: 21 Feb. 1998 |