MLDesign Technologies, Inc.






A MLDesigner and SatLab UMTS SystemModel

Analyze mission, performance and signal processing for fast moving mobiles in terrain

This mission-level analysis assesses the performance of the equalizer circuit of a wireless handset transceiver in a mission-level scenario using MLDesigner

The MLDesigner model
The SatLab GUI

SatLab is connected to MLDesigner (Fig.3). When the simulation starts, a control window opens for dynamic parameter control (Fig.4). SatLab begins calculating the UMTS handset position for MLDesigner (Fig.5)

SatLab Access Control Window before and after connection
Dynamic controls for model
SatLab Access Window showing position transmission

SatLab begins calculating satellite system positions relative to the UMTS handset.

SatLab satellite position display

SatLab generates a dynamic 3D terrain map to show the position of the UMTS handset during simulation. (The handset is located in a vehicle moving down a road in rough terrain.) The map also shows the position of the base stations (small blue squares) and the available communications channels to the satellites and the ground stations. The model calculates channel handoffs based on signal availability and quality.

SatLab-generated terrain map

MLDesigner models the handset behavior and its geographic movement. MLDesigner dynamic displays show before and after signal constellation plots showing the effect of the equalizer algorithm in the UMTS handset transceiver (Fig.8) The dynamic display (Fig.9) shows the action of the handset filter taps.

MLDesigner creates summary output graphs when the simulation completes.

Output graph summarizing Azimuth, Elevation and Visibility data for the satellites.
Output graph summarizing utilized communication links