36 Hits in 6.5 sec

Entry Guidance Command Generation for Hypersonic Glide Vehicles under Threats and Multiple Constraints

Ziyao Wang, Shengjing Tang, Jie Guo
2021 IEEE Access  
A novel entry guidance command generation (EGCG) method for hypersonic glide vehicles (HGVs) is proposed in this paper.  ...  Apart from the conventional path constraints, terminal constraints, and multiple stationary geographic constraints, the method takes into account several threats that HGVs must avoid during the entry process  ...  The authors would also like to acknowledge the financial support from the National Natural Science Foundation of China (under Grants 11202024 and 11572036) for the work reported in this paper.  ... 
doi:10.1109/access.2021.3137641 fatcat:yhrlrt5aybecvm6xhificxssi4

Autonomous gliding entry guidance with geographic constraints

Jie Guo, Xuzhong Wu, Shengjing Tang
2015 Chinese Journal of Aeronautics  
This paper presents a novel three-dimensional autonomous entry guidance for relatively high lift-to-drag ratio vehicles satisfying geographic constraints and other path constraints.  ...  Results show that the proposed entry guidance approach can adapt to different entry missions and is able to make the vehicle reach the prescribed target point precisely in spite of geographic constraints  ...  As shown inFig. 10, the bank angle commands generated by PID and ADRC all satisfy the control constraints. Fig. 7 7 Ground tracks of entry vehicle for Mission 1-Mission 5.  ... 
doi:10.1016/j.cja.2015.07.009 fatcat:mahf6q6jyjgq7l4kkpa3vo3vgm

Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint

Shengnan Fu, Tianyu Lu, Jian Yin, Qunli Xia, Giovanni Palmerini
2021 International Journal of Aerospace Engineering  
An online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle.  ...  Firstly, based on the Evolved Acceleration Guidance Logic for Entry (EAGLE), drag acceleration-energy profiles are designed.  ...  The sequential convex programming (SCP) method can be used to generate a reference trajectory under multiple constraints.  ... 
doi:10.1155/2021/8827377 fatcat:pqq636thgbftjgvczlbalkeq2i

Threat Asymmetry and Transition in Deterrence: Technical Assessment of India's Ballistic Missile Defense Shield

Furqan Khan, Khadijah Saeed
2021 Journal of South Asian studies  
This is because the threat asymmetry allows Pakistan to develop advanced nuclear capabilities including BMD evading delivery vehicles like MIRV as the offensive firepower to communicate the threat as an  ...  threat of annihilation.  ...  Such missiles are classified into SRBMs, IRBMs and ICBMs by range, regular re-entry vehicles, maneuvering re-entry vehicles and hypersonic glide vehicles by type of warhead, conventional, chemical, biological  ... 
doi:10.33687/jsas.008.01.3319 fatcat:ajvlxdn6v5gidgdfpcjg5jlbma

Impact of missile defense systems on strategic stability and prospects for nuclear disarmament
Влияние систем ПРО на стратегическую стабильность и перспективы ядерного разоружения

V. Dvorkin, Primakov National Research Institute of World Economy and International Relations, Russian Academy of Sciences (IMEMO), 23, Profsoyuznaya Str., Moscow, 117997, Russian Federation
2019 Mirovaya Ekonomika i Mezhdunarodnye Otnosheniya  
-President, Russian Federation, Vladimir Putin Presidential Address to the Federal Assembly, 1 March, 2018"China has also tested a hypersonic glide vehicle."  ...  Russian leaders also claim that Russia possesses a new class of missile, the hypersonic glide vehicles (HGV), which maneuver and typically travel at velocities greater than Mach 5 in or just above the  ...  Under this MOU, DoD will sustain extensive cooperation with Israel and seek increased opportunities to take advantage of Israeli research and development efforts for similar U.S. defense missions.  ... 
doi:10.20542/0131-2227-2019-63-8-5-12 fatcat:n25xs4fdgzbirc4bhsyh5mzdhy

Singular Perturbations and Time Scales in Guidance and Control of Aerospace Systems: A Survey

D. Subbaram Naidu, Anthony J. Calise
2001 Journal of Guidance Control and Dynamics  
In a study of hypersonic flight trajectories under a class of path constraints, Lu’?  ...  Calise and Bae®’ used singular perturbation theory for obtaining optimal heading changes with minimum energy loss for a hypersonic gliding vehicle.  ... 
doi:10.2514/2.4830 fatcat:qdfw6bvvxrawbmxoelk6ioc5uq

Singular perturbations and time scales in guidance and control of aerospace systems - A survey

D. S. Naidu, Anthony J. Calise
2001 Journal of Guidance Control and Dynamics  
In a study of hypersonic flight trajectories under a class of path constraints, Lu’?  ...  Calise and Bae®’ used singular perturbation theory for obtaining optimal heading changes with minimum energy loss for a hypersonic gliding vehicle.  ... 
doi:10.2514/3.22603 fatcat:v76ixl3625hg5n7jeu3rzceqwq

Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2015 Budget Estimates

Department Of Defense Comptroller's Office
2014 Zenodo  
DARPA seeks to improve the analysis of large neural data sets by creating interfaces that will allow researchers to generate new models across multiple scales.  ...  The budget request details the proposed investments $80 million to develop new sets of tools for imaging and analytics of neural and synaptic brain activities that will improve diagnosis and care of wounded  ...  -Improved high temperature materials base for hypersonic flight and re-entry vehicles applications through improved manufacturing, modeling, and ground based testing.  ... 
doi:10.5281/zenodo.1215345 fatcat:fjzhmynqjbaafk67q2ckcblj2m

Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2016 Budget Estimates

Department Of Defense Comptroller's Office
2015 Zenodo  
-Generate design intent and the initial materials solution for a baseline hypersonic flight trajectory. -Establish and populate the data warehouse for initial boost-glide aeroshell data.  ...  hypersonic boost glide systems, including a flight demonstration of a vehicle that is traceable to an operationally relevant weapon that can be launched from current platforms.  ... 
doi:10.5281/zenodo.1215366 fatcat:cqn5tyfixjanzp5x3tgfkpedri

Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2019 Budget Estimates

Department Of Defense Comptroller's Office
2018 Zenodo  
Theprogram uses information, computational modeling, and physical sciences todiscover properties of biological systems that cross multiple scales of biologicalarchitecture and function, from the molecular  ...  It supports scientificstudy and experimentation that serves as the basis for more advanced knowledge andunderstanding in information, electronic, mathematical, computer, biological, and materialssciences  ...  OpFires will leverage and integrate ongoing investments in hypersonic tactical boost glide vehicles (e.g., DARPA s Tactical Boost Glide (TBG) program) to achieve these objectives.  ... 
doi:10.5281/zenodo.1215599 fatcat:kxduvg6a5nflhf6iilkwnolobu

Dreaming of clean nukes

Michael A. Levi
2004 Nature  
The architectural construct for this strategic C2 should fall under the governance of the Unified Command Structure (UCS) under development in ASD(NII) (C2 Policy).  ...  This national and DoD guidance includes the Quadrennial Defense Review (QDR); the Nuclear Posture Review (NPR); the Unified Command Plan (UCP), Change 2; and the Transformation Planning Guidance (TPG).  ...  We recommend that R&D be conducted to examine use of such systems for controlling air-launched cruise missiles, UCAVs, and ballistic missile re-entry vehicles.  ... 
doi:10.1038/428892a pmid:15118700 fatcat:4l7opgcfbzdm7merk5sw35a3ry

Convex Optimization for Trajectory Generation [article]

Danylo Malyuta, Taylor P. Reynolds, Michael Szmuk, Thomas Lew, Riccardo Bonalli, Marco Pavone, Behcet Acikmese
2021 arXiv   pre-print
To date, the list of applications includes rocket landing, spacecraft hypersonic reentry, spacecraft rendezvous and docking, aerial motion planning for fixed-wing and quadrotor vehicles, robot motion planning  ...  Reliable and efficient trajectory generation methods are a fundamental need for autonomous dynamical systems of tomorrow.  ...  For more general ap- under one second [9, 37, 63].  ... 
arXiv:2106.09125v1 fatcat:owlktd5o7bhsrowgkmyz4kqu3y

Advances in Inertial Guidance Technology for Aerospace Systems

Robert D. Braun, Zachary R. Putnam, Bradley A. Steinfeldt, Michael J. Grant, Gregg Barton
2013 AIAA Guidance, Navigation, and Control (GNC) Conference   unpublished
Open-loop and closed-loop approaches for short-range systems, long-range systems and entry systems are described for both civilian and military applications.  ...  The origin, evolution, and outlook of guidance as a path and trajectory manager for aerospace systems is addressed.  ...  Entry Systems A. Hypersonic Guidance Hypersonic entry is generally unpowered; steering is accomplished via changes in aerodynamic forces and moments.  ... 
doi:10.2514/6.2013-5123 fatcat:53pgby2fgrfhrcejthvxgulxje

Parameters – Full Issue – Spring 2017

USAWC Parameters
2017 Parameters  
at the Meuse, Avesnes, and Arras, he acted all but independently of his corps and army commanders, Generals Hermann Hoth and Hans von Kluge, who often had little idea of his location.  ...  in 1940, mission command allowed local commanders to act on their initiative in response to their immediate circumstances without consideration or knowledge of the wider situation-for instance, as commander  ...  Under such a scheme, the US government would play a greater role in facilitating contractor compliance-for instance, the multiple-entry visa requirement for contractor employees would remain, but the visas  ... 
doi:10.55540/0031-1723.2657 fatcat:3pck7ne5snabzkqvldrfqgpsdm

Jeffrey Edmonds/Samuel Bendett/Anya Fink/Mary Chesnut/Dmitry Gorenburg/Michael Kofman/Kasey Stricklin/Julian Waller: Artificial Intelligence and Autonomy in Russia. Arlington, VA: Center for Naval Analyses (CNA), Mai 2021

Artiom Hildebrandt
2021 SIRIUS - Zeitschrift für Strategische Analysen  
Approved for public release: distribution unlimited. 5/12/2021 This work was performed under Federal Government Contract No. N00014-16-D-5003. Cover image credit: Compiled by CNA.  ...  This report is part of an effort by CNA to provide timely, accurate, and relevant information and analysis of the field of AI in Russia, and follows a series of more than twenty biweekly newsletters on  ...  System Weapon type AI/Autonomy aspect Status Burevestnik Nuclear-powered cruise missile Guidance In development Avangard Hypersonic glide vehicle Guidance In service Poseidon Nuclear powered UUV Guidance  ... 
doi:10.1515/sirius-2021-4014 fatcat:kebmdg2gmfellh37sljf26sqcm
« Previous Showing results 1 — 15 out of 36 results