A review of optimization techniques in spacecraft flight trajectory design

R Chai, A Savvaris, A Tsourdos, S Chai… - Progress in aerospace …, 2019 - Elsevier
For most atmospheric or exo-atmospheric spacecraft flight scenarios, a well-designed
trajectory is usually a key for stable flight and for improved guidance and control of the …

Active sensing for search and tracking: A review

L Varotto, A Cenedese, A Cavallaro - arXiv preprint arXiv:2112.02381, 2021 - arxiv.org
Active Position Estimation (APE) is the task of localizing one or more targets using one or
more sensing platforms. APE is a key task for search and rescue missions, wildlife …

Optimal searching path to find a hidden target in a bounded region

MAA El-Hadidy - Afrika Matematika, 2023 - Springer
This paper addresses the problem of searching for a randomly located target in a bounded,
known region by using two unit-speed searchers. The searching process starts at (0, 0). The …

Generalised linear search plan for a D-dimensional random walk target

MAA El-Hadidy - International Journal of Mathematics in …, 2019 - inderscienceonline.com
In this paper, we present a mathematical search model that studies the generalised linear
search plan for detecting a d-dimensional random walk target. The target will meet one of …

Cooperative search model for finding a Brownian target on the real line

MAA El-Hadidy, AA Alzulaibani - Journal of Taibah University for …, 2019 - Taylor & Francis
In this paper, we study the cooperation between two searchers start the searching process
from the origin to meet a Brownian moving target on a real line. We find the conditions that …

Optimal multiplicative Bayesian search for a lost target

MAEH Kassem, MAA El-Hadidy - Applied Mathematics and Computation, 2014 - Elsevier
This paper deals with the problem of searching for not evading lost target by using Bayesian
approach. The target may be stationary or drifting in one of n-disjoint bounded known …

Searching for a d-dimensional Brownian target with multiple sensors

MAA El-Hadidy - International Journal of Mathematics in …, 2016 - inderscienceonline.com
We consider a search problem for a d-dimensional Brownian target that moves randomly on
d-space. We have n-searchers moving with a linear paths in d-dimension to search for the …

Existence of finite parbolic spiral search plan for a Brownian target

MAA El-Hadidy - International Journal of Operational …, 2018 - inderscienceonline.com
A target is assumed to move in the plane according to a two-dimensional independent
Brownian motion. The searcher moves along parabolic spiral curve. The purpose of this …

Fuzzy Optimal Search Plan for N-Dimensional Randomly Moving Target

MAA El-Hadidy - International Journal of Computational Methods, 2016 - World Scientific
This paper presents a search model that finds n-dimensional randomly moving target in
which any information of the target position is not available to the searchers. There exist n …

Optimal 3-dimensional search model to find the underwater randomly hidden target

MAA El-Hadidy, M Fakharany - International Journal of …, 2021 - inderscienceonline.com
The searcher's path for finding a 3-dimensional underwater randomly located target like a
black box for the air plan crash is studied. The searcher moves along slinky-turn-spiral curve …