Extensive research results have shown that animals like pigeons and turtles can use geomagnetic information for long-distance migration homing. This article studies the bionic navigation method inspired by magnetotaxis behavior without prior knowledge. The problem of is generalized as an autonomous search path under excitation environment. gradient-assisted evolutionary algorithm long-range und...

Indoor position technologies have attracted the attention of many researchers. To provide a real-time indoor system with high precision and stability is necessary under circumstances. In scenario, gross errors Bluetooth low energy (BLE) fingerprint method are more easily occurring heading angle pedestrian will drift without acceleration magnetic field compensation. A BLE/pedestrian dead-reckoni...

Heading estimation is a central problem for indoor pedestrian navigation using the pervasively available smartphone. For smartphones placed in a pocket, one of the most popular device positions, the essential challenges in heading estimation are the changing device coordinate system and the severe indoor magnetic perturbations. To address these challenges, we propose a novel heading estimation ...

Two studies investigated updating of self-position and heading during real, imagined, and simulated locomotion. Subjects were exposed to a two-segment path with a turn between segments; they responded by turning to face the origin as they would i f they had walked the path and were at the end of the second segment. The conditions of pathway exposure included physical walking, imagined walking f...

This paper presents a trajectory tracking control method for nonholonomic mobile robot which is based only on kinematic model. A mobile robot trajectory tracking control method, based on terminal sliding mode control, with asymptotic stability is presented. Based on kinematic model of mobile robot, a terminal sliding mode control law for the angular velocity is proposed to reduce the tracking e...

An arithmetic of fast two-position initial alignment for Strapdown Inertial Navigation System (SINS) using Unscented Kalman Filter (UKF) is proposed in this paper to solve the initial alignment problems of SINS. Based on the analysis of initial alignment method of SINS, the nonlinear model for two-position attitude calculation is derived, and the two-position method is used to eliminate the con...

We present two bilevel programming formulations for the aircraft deconfliction problem: one based on speed regulation in k dimensions, other heading angle changes 2 dimensions. propose three reformulations of each problem KKT conditions and different duals lower-level subproblems. also a cut generation algorithm to solve formulations. Finally, we computational results variety instances.

We recall that according to [3], a function φ : X → [−∞,∞) is called quasiplurisubharmonic (quasi-psh for short) if it is locally equal to the sum of a smooth function and a plurisubharmonic (psh) function. Then there exist a constant C ∈ R such that √ −1∂∂φ ≥ −Cω in the sense of currents on X . We say that a function ψ has logarithmic poles if for each open set U ⊂ X there exist a family of ho...