Background The rise of autonomous machines navigating the changing outdoor environment requires not only the use of line-of-sight tracking, but also non-line of sight (NLOS) tracking. NLOS imaging techniques are divided into active and passive approaches. Active methods employ high-temporal-resolution light sources and time-resolved detectors which...

Multi-robot systems (MRS) composed of multiple mobile robots have been used for various collective exploration and perception tasks, such as mapping unknown environments, disaster response, and surveillance and monitoring. The performance of MRS in such applications is constrained by the capabilities of the payloads that the robots can carry on-board,...

There are a number of circumstances where electricity is needed, but wired power delivery is not available, convenient, or technologically feasible. Remote industrial, scientific, and military endeavors often journey beyond established infrastructure, making wired power delivery more complicated, expensive, and dangerous. Also, emergency situations...

­Background Mobile ground robots and aerial robots have often been used for exploration and mapping tasks. Many multi-robot control strategies rely on a centralized communication network for coordination; however, these strategies do not scale well with increasing robot population size, as the communication bandwidth becomes a bottleneck. Although...