BACKGROUND Research on wild animal ecology is increasingly employing GPS telemetry in order to determine animal movement. However, GPS systems record position intermittently, providing no information on latent position or track tortuosity. High frequency GPS have high power requirements, which necessitates large batteries (often effectively precluding their use on small animals) or reduced depl...

This paper proposes a pre-reckoning algorithm for distributed virtual environments. First, an overview of dead reckoning techniques used in distributed virtual environments is provided. The benefits and drawbacks of implementing dead reckoning within specific types of distributed virtual environments are discussed. An alternative to traditional dead reckoning techniques used in DIS-compliant di...

Animals use multiple strategies to maintain spatial orientation. Dead reckoning is a form of spatial navigation that depends on self-movement cue processing. During dead reckoning, the generation of self-movement cues from a starting position to an animal's current position allow for the estimation of direction and distance to the position movement originated. A network of brain structures has ...

This paper presents a pedestrian indoor navigation system based on the multi-sensor fusion and fuzzy logic estimation algorithms. The proposed navigation system is a self-contained dead reckoning navigation that means no other outside signal is demanded. In order to achieve the self-contained capability, a portable and wearable inertial measure unit (IMU) has been developed. Its adopted sensors...

Autonomous and teleo erated mobile robots require an ccurate knowledge of their spatial location in order to accomplish many tasks. Many mobile robots make use of dead reckoning navigation because of its simplicity, low cost and robustness. Although dead reckoning navigation has been used for centuries for ships and wheeled vehicles, the application to a walking machine is novel. Since walking ...

For multi-agent systems to interact meaningfully in a distributed environment, the coherence among the entities’ states must be maintained. Because continuous state updates normally require large amounts of network bandwidth, Newtonian-based equations (i.e., dead-reckoning models) are frequently used to reduce the number of communications updates. However, even with the use of such dead-reckoni...

Distributed real-time multiplayer games are played over a network among a set of players competing against each other and/or against Artificial Intelligence (AI). A latency hiding and bandwidth reduction technique known as ‘Dead Reckoning’ [6] and [24] is often used in these games. The games use dead reckoning vectors to inform other (at a distance) participating players about the movement of a...

This paper presents a new approach to accurate and reliable dead-reckoning with mobile robots. The approach makes use of special properties of our recently developed Multi-Degreeof-Freedom (MDOF) mobile platform, in which two differential-drive mobile robots (called "trucks") are physically connected through a compliant linkage. Using one linear and two rotary encoders, the system can measure t...

Robust dead reckoning is a complicated problem for wheeled mobile robots (WMRs), where the robots are faulty, such as the sticking of sensors or the slippage of wheels, for the discrete fault models and the continuous states have to be estimated simultaneously to reach a reliable fault diagnosis and accurate dead reckoning. Particle filters are one of the most promising approaches to handle hyb...