DSCI 2007
DSCI has developed VISUALYZER that allows the user to visualize the layout of a scenario with respect to the quality of communications links. This tool graphically draws lines between vehicle icons displayed on a map each time an attempt is made to transmit a vehicle position report on a radio. The line is color-coded (e.g. green, yellow, or red), depending on the strength of the link and the successful message transmission. Visualyzer calls an independent propagation server to calculate the transmission/path loss between each set of vehicles (radios). Visualyzer also includes a radio transmission statistics tool that the user can activate to display the noted statistics. The tool requires the user to select a sender/receiver pair from the map display, as well as a period of time over which the statistics are to be collected.
The editor then computes and displays the following information for each radio (SINCGARS and EPLRS) used to transmit position reports: number of transmission attempts, number of successes (message received), average probability of message reception, and average message latency. To accurately model message latency, DSCI has incorporated its Situational Awareness Server (SAS) tactical Internet model in the overall architecture. This model was developed to calculate realistic message completion rates and message delays for all situational awareness up and down messages. Finally, the architecture contains a data logger to collect all desired statistics, including (but not limited to) entity status, message transmission and receipt, sensor detection performance, etc. This data logger, which functions based on the receipt of DIS Protocol Data Units (PDUs), can also be adapted for HLA applications.
TYPICAL VISUALYZER OUTPUT
