ModelingThe new SIMCOM GPS simulation system from CAST produces GPS RF signals that provide dynamic, repeatable testing in the laboratory for a wide range of GPS applications. The simulator produces a constellation of GPS RF signals that are fully programmable and controlled by the simulator software in real time.The SIMCOM simulator generates a full constellation of GPS with up to 16 satellites in view selected from the defined 32 Pseudo Random Noise codes. It generates signals for up to 16 channels of C/A code and the new M-noise signal on L1.Three user-defined test scenarios are delivered with the simulator. Software is included for remotely controlling the simulator from a Windows PC via Ethernet. A single PC may control multiple SIMCOM units simultaneously. Each simulator can output GPS signals for testing up to 64 receivers simultaneously.With the scenario generation option, the user has the ability to select from a variety of vehicle types and simulate dynamic motion for land, sea, air and space based vehicles. They may also generate a trajectory by defining a total mission profile or by using six degree of freedom dynamic profile data collected in the field. With the NMEA post processing option, the system’s performance evaluation module provides the capability to compare raw measurements and filtered data received from the GPS navigation system with true vehicle position for performing post-test analysis.
Simulator Features
•Up to 16 C/A and new M-noise signal on L1
•Selectable Host Vehicle Parameters
•Complete SV Constellation Generation
•Satellite RAIM Events
•Ionosphere Modeling
•Troposphere Modeling
•Satellite Clock Errors
•Waypoint Navigation
•Multipath Modeling
•Modifiable Navigation Message
•Time-tagged Satellite Events
•Selective Availability Modeling
•Antenna Pattern ModelingThe |
|
|
|
|
