Target acquisition

This research proposes a cluster-based target tracking strategy for one
moving object using wireless sensor networks. The sensor field is organized in 3
hierarchal levels. 1-bit message is sent when a node detects the target.
Otherwise the node stays silent. Since in wireless sensor network nodes have
limited computational resources, limited storage resources, and limited battery,
the code for predicting the target position should be simple, and fast to execute.
The algorithm proposed in this research is simple, fast, and utilizes all available
detection data for estimating the location of the target while conserving energy.
lbis has the potential of increasing the network life time.
A simulation program is developed to study the impact of the field size
and density on the overall performance of the strategy. Simulation results show
that the strategy saves energy while estimating the location of the target with an
acceptable error margin.

Options for tracking dynamic underwater targets using optical methods is currently limited. This thesis examines optical reflectance intensities utilizing Lambert’s Reflection Model and based on a proposed underwater laser tracking system. Numerical analysis is performed through simulation to determine the detectable light intensities based on relationships between varying inputs such as angle of illumination and target position. Attenuation, noise, and laser beam spreading are included in the analysis. Simulation results suggest optical tracking exhibits complex relationships based on target location and illumination angle. Signal to Noise Ratios are a better indicator of system capabilities than received intensities. Signal reception does not necessarily confirm target capture in a multi-sensor network.