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Hardware Integration of Parachute Guidance, Navigation, and Control for the Affordable Guided Airdrop System (AGAS) epub download

by James G. Johnson


James G. Johnson September 2001. This study is a continuation of a previous work concerning the Affordable Guided Airdrop System (AGAS), a parachute structure that integrates low-cost guidance and control into fielded cargo air delivery systems.

James G. Thesis Advisors: Isaac I. Kaminer Oleg A. Yakimenko. This thesis sought to integrate the previous studies and algorithms into developmental prototypes for test and evaluation (DT&E).

This effort is a part of the Affordable Guided Airdrop System (AGAS) that integrates a low-cost guidance and . This paper addresses the development of autono-mous guidance, navigation and control algorithms for a flat solid circular parachute.

This effort is a part of the Affordable Guided Airdrop System (AGAS) that integrates a low-cost guidance and control system into fielded cargo air delivery systems. The paper describes the AGAS concept, its architecture and components. It further proceeds with the description of the control strategy based on Pontrjagin's principle of optimality. This effort is a part of the Affordable Guided Airdrop System (AGAS) that integrates a low-cost guidance and control system into fielded cargo air delivery sys-tems.

Development of guidance and control algorithms for autonomous solid circular parachutes is addressed. This effort is a part of the Affordable Guided Airdrop System that integrates a low-cost guidance and control system into fielded cargo air delivery systems.

This paper addresses the development of autonomous guidance, navigation and control algorithms for a flat solid circular parachute. Development of guidance and control algorithms for autonomous solid circular parachutes is addressed. First, the underlying Affordable Guided Airdrop System concept, architecture, and components are described. Then a synthesis of a classical.

Thesis advisor(s): Kaminer, Isaac . Yakimenko, Oleg A. "June 2000. in Aeronautical Engineering) Naval Postgraduate School, June 2000. Includes bibliographical references (p. 81-82). This study is a continuation of a previous work concerning the Affordable Guided Airdrop System (AGAS), a parachute system that integrates low- cost guidance and control into fielded cargo air delivery systems.

The low-cost concept of the Affordable Guided Airdrop System2 (AGAS) .

The low-cost concept of the Affordable Guided Airdrop System2 (AGAS) is considered in this paper. This study encompassed modeling and simulation efforts to assess dynamic response of a  at circular parachute, to design guidance and control techniques, and to evaluate the feasibility of the AGAS concept. The  ight-test results for the C-9 parachute showed signiŽ cant rotations and changes in rotation rate with control activation. Sensor Models The AGAS is expected to include two navigation sensors: 1) a commercial GPS receiver for position determination and 2) a heading reference assumed to be a magnetic compass for this study.

Guidance, navigation and control (abbreviated GNC, GN&C, or G&C) is a branch of engineering dealing with the design of systems to control the movement of vehicles, especially, automobiles, ships, aircraft, and spacecraft. In many cases these functions can be performed by trained humans. However, because of the speed of, for example, a rocket's dynamics, human reaction time is too slow to control this movement. Therefore, systems-now almost exclusively digital electronic-are used for such control.

Control - algorithms, vehicle and control system requirements and .

Control - algorithms, vehicle and control system requirements and specifications, stability analyses, and controller design, modeling and simulation. Guidance, navigation, and control capabilities will be needed for today’s launch and tomor-row’s in-space applications. GN&C Architecture for the Space Launch System Marshall provides critical GN&C components for the SLS - functional requirements and hardware specifications for the SLS Navigation hard-ware, the Redundant Inertial Navigation Unit (RINU) and the Rate Gyro Assemblies; and thrust vector control electronics.

AGAS also uses the standard Army G-12 cargo parachute to guide the load to its geographic location. The Army A-22 container, capable of holding 2200 lbs of supplies and equipment, is used to carry the load to its destination

AGAS also uses the standard Army G-12 cargo parachute to guide the load to its geographic location. The Army A-22 container, capable of holding 2200 lbs of supplies and equipment, is used to carry the load to its destination. A windpack dropsonde resembling a small torpedo attached to a parachute, measures wind data and the distance from the drop altitude to ground surface. This information is transmitted to the flight planning module which calculates a path of trajectory. The module passes the trajectory path information to the GPS to help guide the load to its intended landing spot.

One such system is the 2,000-lb class Affordable Guided Airdrop .

One such system is the 2,000-lb class Affordable Guided Airdrop System - AGAS 2000. The requirement for airdropping critical military and relief supplies from high altitude has existed since the advent of long-range, ground-based, anti-aircraft armaments. Advances in just the past five years in navigation, guidance, and control electronics based on the Global Positioning System (GPS), and improvements in the measurement and forecasting of in-situ winds have mad. ONTINUE READING.

The guidance system allows a remote user to define target areas from a high resolution aerial or satellite image to determine either the waypoints of the navigation trajectory or the landing area

The guidance system allows a remote user to define target areas from a high resolution aerial or satellite image to determine either the waypoints of the navigation trajectory or the landing area. A feature-based image-matching algorithm finds the natural landmarks and gives feedbacks to an onboard, hierarchical, behaviour-based control system for autonomous navigation and landing. Two algorithms for safe landing area detection are also proposed, based on a feature optical flow analysis.

This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A170793. The abstract provided by the Pentagon follows: This study is a continuation of a previous work concerning the Affordable Guided Airdrop System (AGAS), a parachute structure that integrates low-cost guidance and control into fielded cargo air delivery systems. This thesis sought to integrate the previous studies and algorithms into developmental prototypes for test and evaluation (DT&E). Several objectives and tasks were completed in the course of this research and development. A realSim(registered) executable on an Integrated Systems, Incorporated (ISI) AC- 104 real-time controller integrated actual Vertigo(registered), pneumatic muscle actuators (PMAs) into the MATRIX(registered) environment simulation model used in the previous work to validate, analyze and improve the simulation model. A ground station utilizing the model's control algorithms, a downlink of platform position and attitude data, and a Futaba(registered) Pulse Code Modulated uplink demonstrated controlled guidance of a round cargo parachute (G-12). This system evolved as an RS-232 serial control RF modem uplink replaced the PCM signal. After evaluating, validating, and improving the algorithms from ground station control the model was written in C-code for incorporation into an autonomous system. The results from the drops were then analyzed again in the MATRIX_X(registered) model to improve the model and further qualitatively evaluate optional control strategies. Conclusions and recommendations for further study were drawn from this project.

Hardware Integration of Parachute Guidance, Navigation, and Control for the Affordable Guided Airdrop System (AGAS) epub download

ISBN13: 978-1423526247

ISBN: 1423526244

Author: James G. Johnson

Category: No category

Language: English

Publisher: Storming Media (2001)

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