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Unmanned Aerial Vehicles (UAVs) have become necessary tools for a wide range of activities including but not limited to real-time monitoring, surveillance, reconnaissance, border patrol, search and rescue, civilian, scientific and military missions, etc. Their advantage is unprecedented and irreplaceable, especially in environments dangerous to humans, for example, in radiation or pollution-exposed areas. Two path-planning algorithms for reconnaissance and surveillance are proposed in this paper, which ensures every point on the target ground area can be seen at least once in a complete surveillance circle. Moreover, the geometrically complex environments with occlusions are considered in our research. Compared with many existing methods, we decompose this problem into a waypoint-determination problem and an instance of the traveling-salesman problem.

Small unmanned aircraft systems can be used for a variety of environmental applications. SUAS under 50 kg have the most utility at the tactical level and benefit from the research and development of systems currently being manufactured. Integrating chemical sensors into these systems can enhance Multi-service Tactics, Techniques, and Procedures for Chemical, Biological, Radiological, and Nuclear Reconnaissance and Surveillance. Considering the advantages and disadvantages in the fundamental science of twelve detection technologies, four types of sensors emerged as candidates for SUAS integration. Using specifications from commercial-off-the-shelf sensors, these four detection technologies (Electrochemical, Metal Oxide Semiconductor, Photoionization, and Catalytic Bead) were further evaluated on five parameters (response time, sensitivity, selectivity, power, and weight). Based on this research, MOS detectors are the top detection technology for SUAS employment and integration. In addition to classic chemical warfare agents, toxic industrial chemicals pose a risk to both civilian and military personnel. Eighty-five hazardous chemicals were identified by cross-referencing chemicals detectable using these four technologies with CWA and TIC of interest based on their toxicity and or security issue. Finally, a multi-objective decision model provides a basic decision aid for employing SUAS as a CBRN R and S asset in a tactical environment.

At a time when online surveillance and cybercrime techniques are widespread, and are being used by governments, corporations, and individuals, Cyber Reconnaissance, Surveillance and Defense gives you a practical resource that explains how these activities are being carried out and shows how to defend against them. Expert author Rob Shimonski shows you how to carry out advanced IT surveillance and reconnaissance, describes when and how these techniques are used, and provides a full legal background for each threat. To help you understand how to defend against these attacks, this book describ

The problems to be encountered in the utilization of manned space vehicles for surveillance and reconnaissance are reviewed, together with the variables which will influence the performance of the human operator in such operations. Analyses of the theoretical capabilities of direct, unaided vision and man-periscopic vision are presented. These analyses indicate that the tasks assigned to the human operator must be examined carefully in order to ascertain that they are within his capabilities. However, the operator may be materially assisted through proper design and selection of the display-sensor system, which may overcome his inherent deficiencies. The complexity of the variables involved and the lack of much pertinent data indicates that the utilization of the human operator in any specific, system must be determined as a result of trade-offs performed during actual system development and in keeping with the specific mission objectives to be met by that system.