The Command, Control, Communication, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR) On-The-
Move (OTM) demonstration is an annual showcase of how innovative technologies can help modern troops increase
their situational awareness (SA) in battlefield environments. To evaluate the effectiveness these new technologies have
on the soldiers' abilities to gather situational information, the demonstration involves United States Army National
Guard troops in realistic war game scenarios at an Army Reserve training ground. The Army Research Laboratory
(ARL) was invited to participate in the event, with the objective demonstrating system-level integration of disparate
technologies developed for gathering SA information in small unit combat operations. ARL provided expertise in
Unattended Ground Sensing (UGS) technology, Unmanned Ground Vehicle (UGV) technology, information processing
and wireless mobile ad hoc communication. The ARL C4ISR system included a system of multimodal sensors (MMS),
a trip wire imager, a man-portable robotic vehicle (PackBot), and low power sensor radios for communication between
an ARL system and a hosting platoon vehicle. This paper will focus on the integration effort of bringing the multiple
families of sensor assets together into a working system.
The U.S. Army Research Laboratory has developed a real-time multi-modal sensor for the purpose of personnel detection in urban terrain. Possible system usage includes force protection and sniper early warning. The sensor system includes a network of MMUGS sensors, a third-party gateway and user interface device. A MMUGS sensor consists of the following functions: sensing, processing, and communication. Each sensor is composed of multiple sensing
modalities-acoustic, passive-infrared, and seismic. A MMUGS sensor is designed to be low cost and power efficient. This paper will first present an overview of the sensor architecture and then provide detailed descriptions of sub components. The paper will conclude with a detailed analysis of system performance. This paper is intended to provide details of the design, integration, and implementation of a MMUGS unit, and demonstrate the overall sensor system performance. This paper does not discuss the network aspect of the system and its affect on performance.