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The Mobile Detection Assessment Response System (MDARS) is a joint Army-Navy development effort to field mobile robots at Department of Defense (DoD) sites for physical security and automated inventory missions. MDARS was initiated in 1989 to improve the effectiveness of a shrinking guard force, but was quickly expanded to address the intensive manpower requirements associated with accounting for high-dollar and critical DoD assets. Two types of autonomous platforms patrol inside warehouses (Interior) and outside of storage facilities (Exterior), carrying payloads for intruder detection, inventory assessment, and barrier assessment. The MDARS console for command and control is based upon the Multiple Resource Host Architecture (MRHA), which allows a single human guard to oversee and monitor up to 255 platforms and/or unmanned sensors.Recent improvements to satisfy mission requirements for physical security have expanded the system capabilities to enable force-protection missions in tactical situations. Rapid-prototyping approaches have facilitated investigations into aiming and firing less-than-lethal weapons on an unmanned platform, deployment of a marsupial capability to carry smaller robots, and seamless alldigital communication between unmanned sensors and unmanned ground and air vehicles. This paper provides an overview of the MDARS evolutionary development approach (using mobile robots and fixed sensors) for both physical security and force protection missions. Special treatment is provided on feedback from developmental tests at Aberdeen Proving Grounds, MD, and operational tests at Defense Distribution Depot Susquehanna PA. Report Documentation Page Form Approved OMB No. 0704-0188Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

Small unmanned aerial vehicles (UAVs) are hindered by their limited payload and duration. Consequently, UAVs spend little time in their area of operation, returning frequently to base for refueling. The effective payload and duration of small UAVs is increased by moving the support base closer to the operating area; however this increases risk to personnel. Performing the refueling operations autonomously allows the support base to be located closer to the operating area without increasing risk to personnel. Engineers at SPAWAR Systems Center San Diego (SSC San Diego) are working to develop technologies for automated launch, recovery, refueling, rearming, and re-launching of small UAVs. These technologies are intended to provide forward-refueling capabilities by teaming small UAVs with large unmanned ground vehicles (UGVs). The UGVs have larger payload capacities so they can easily carry fuel for the UAVs in addition to their own fuel and mission payloads. This paper describes a prototype system that launched and recovered a remotely-piloted UAV from a UGV and performed automated refueling of a UAV mockup.

Unmanned vehicles perform critical mission functions. Today, fielded unmanned vehicles have restricted operations as a single asset controlled by a single operator. In the future, however, it is envisioned that multiple unmanned air, ground, surface and underwater vehicles will be deployed in an integrated unmanned (and "manned") team fashion in order to more effectively execute complex mission scenarios. To successfully facilitate this transition from single platforms to an integrated unmanned system concept, it is essential to first develop the required base technologies for multi-vehicle mission requirements, as well as test and evaluate such technologies in tightly controlled field experiments. Under such conditions, advances in unmanned technologies and associated system configurations can be empirically evaluated and quantitatively measured against relevant performance metrics.A series of field experiments will be conducted for unmanned force protection system applications. A basic teaming scenario is: Unmanned aerial vehicles (UAVs) detect a target of interest on the ground; the UAVs cue unmanned ground vehicles (UGVs) to the area; the UGVs provide on-ground evaluation and assessment; and the team of UAVs and UGVs execute the appropriate level of response. This paper details the scenarios and the technology enablers for experimentation using unmanned protection systems.

Unmanned ground and air systems operating in collaboration have the potential to provide future Joint Forces a significant capability for operations in complex terrain. Collaborative Engagement Experiment (CEE) is a consolidation of separate Air Force, Army and Navy collaborative efforts within the Joint Robotics Program (JRP) to provide a picture of the future of unmanned warfare. The Air Force Research Laboratory (AFRL), Material and Manufacturing Directorate, Aerospace Expeditionary Force Division, Force Protection Branch (AFRL/MLQF), The Army Aviation and Missile Research, Development and Engineering Center (AMRDEC) Joint Technology Center (JTC)/Systems Integration Laboratory (SIL), and the Space and Naval Warfare Systems Center -San Diego (SSC San Diego) are conducting technical research and proof of principle experiments for an envisioned operational concept for extended range, three dimensional, collaborative operations between unmanned systems, with enhanced situational awareness for lethal operations in complex terrain. This paper describes the work by these organizations to date and outlines some of the plans for future work.Keywords: UAV, UGV, unmanned systems, collaborative behaviors, lethal operations INTRODUCTIONCombat lessons learned indicate an urgent need for reconnaissance, early warning and security. Compelling logic infers that unmanned systems operating collaboratively could provide significant operational flexibility and soldier survivability in meeting this need. This collaborative capability, when combined with the ability for near real-time engagement of identified high value targets, offer prospects for immediate payoff to operational forces. For the purposes of this paper, collaborative behavior is defined as unmanned systems working together to accomplish predefined mission(s) with minimal human operator intervention. The main characteristic of collaboration includes the ability for unmanned systems to work as a team, command one another, pass information directly to each other, and make changes to their missions based on that information while being monitored by a human operator.