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Wednesday, April 29, 2020 | History

1 edition of The effect of autopilot configuration on missile response found in the catalog.

The effect of autopilot configuration on missile response

Kenneth E. Cockerham

The effect of autopilot configuration on missile response

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Published by Naval Postgraduate School in Monterey, California .
Written in English


About the Edition

The U.S. Army Defense Ammunition Center and School (USA DACS), Evaluation Division (SMCAC-DEV), has been tasked by the U.S. Army Armament Research, Development and Engineering Center (ARDEC), Rock Island, IL, to test unitization procedures for shipping GEMSS mine containers in a configuration of 3-wide by 2-high. The methods and results of MIL-STD-1660 testing of the unitization procedures developed by the Storage and Outloading Division (SMCAC-DEO) are contained within this report. As a result of these test, the Evaluation Division is recommending that this unitization procedure be approved for Army-wide use in storing and shipping GEMSS mine containers. The objective of these tests is to assess the capability of the GEMSS unitization procedures to meet Army functional/operational requirements for MIL-STD-1660, Design Criteria for Ammunition Unit Loads.

Edition Notes

StatementKenneth E. Cockerham
ContributionsNaval Postgraduate School (U.S.)
The Physical Object
Pagination66 p. ;
Number of Pages66
ID Numbers
Open LibraryOL25515177M

The concept of US missile defence, however, is based on the maximum possible redundancy of signals and counteractions, at different altitudes, so as to permit a significant response. If the autopilot employs integral feedback loops for improved command tracking response, these guidance commands can drive the flight control system unstable. Additionally, since the autopilot does not use target relative missile position and velocity components for feedback, it cannot adjust its response to accommodate for agile target maneuvers.   The AP [Autopilot] in my car managed to brake even before the car in front of me acted and was able to come to a full stop with a decent amount of room between me and what was the second car ahead.


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The effect of autopilot configuration on missile response by Kenneth E. Cockerham Download PDF EPUB FB2

Axes, full-envelope missile autopilot based on the state-dependent nonlinear formulation of Section 5. In order to validate the satisfactory performance, robustness, genericity and practicality of the nonlinear missile autopilot design approach developed in this study, detailed 6-DOF nonlinear simulations have been carried out in three dimensionalFile Size: KB.

Proceedings of the 18th World Congress The International Federation of Automatic Control Milano (Italy) August 28 - September 2, A Generic Approach to Missile Autopilot Design using State-Dependent Nonlinear Control Tayfun Çimen* * ROKETSAN Missiles Industries Inc., Ankara, TURKEY (e-mail: [email protected], [email protected]).Abstract: The fundamental objective of Cited by: performance of the missile subsystems and by finding methods to exploit the synergism existing between subsystems.

As a first step towards the development of integrated design methodologies, this paper develops a technique for integrated design of missile guidance and autopilot systems.

11th IFAC International Workshop on Adaptation and Learning in Control and Signal Processing JulyCaen, France ThS5T The Combined Effect of Missile IMU Shift, Model Following and Add-on SAC on the Autopilot Response Haim Weiss*, Ilan Rusnak*, Itzhak Barkana ** *RAFAEL, P.O.

Box,Haifa, Israel **Barkana Consulting, 11 Author: Haim Weiss, Ilan Rusnak, Itzhak Barkana. For highly agile missile systems, other robust control methodologies were applied to the design of missile autopilot based on The effect of autopilot configuration on missile response book control [4], μ-synthesis [], and mixed HH2/∞ control synthesis [7].

The authors in [8] proposed missile autopilot design, using feedback linearization and a two-time scale separation technique. Approximate. Tactical missile autopilots are part of the wider guidance navigation and control missile system whose goal is to achieve a successful intercept.

The missile autopilot task is to turn guidance commands into fin deflection and is generally divided into two lateral direction (pitch and yaw) controllers and the roll orientation or roll rate. Autopilot configuration: The missile control system consisting of servos, control surfaces or thrust vector elements, the airframe and a feedback element plus control electronics is usually called an autopilot.

The underlying model uses a free gyroscope or simply gyro as a feedback element that senses the. The integrated autopilot shown in Figure displays the currently engaged autopilot mode along the top of the PFD. How Autopilot Functions Work Once an autopilot mode has been engaged, the autopilot: 1.

Determines which control movements are required to follow the flight profile entered by the pilot, and 2. loop behavior for the missile system. The response of the reference model to the desired acceleration commands is measured, and the autopilot controls the missile to mimic that response.

Pseudo control hedging (PCH) is added to avoid actuator saturation which may result in incorrect ANN learning [4].File Size: KB. skid to run missile the autopilot activates to move the control surfaces suitably for orienting the missile body with respect to the flight path.

This action generates angle of attack and consequently latax for steering the missile in the desired path [4].In this work, Flight path rate demand Two loop autopilot in pitch plane obtained from the.

First a new autopilot design model is presented for the interceptor missile with the blended aerodynamic lift and reaction jet. The reaction jet can improve the response speed, but the structure of control system becomes more complex.

Therefore how to design control strategy properly is an urgent problem. Second, considering the discrete property of the lateral pulse jet Author: Chong Yang, Ke Zhang, Mei Bai Lu. This paper develops a novel autopilot design method for blended missiles with aerodynamic control surfaces and lateral jets.

Firstly, the nonlinear model of blended The effect of autopilot configuration on missile response book is reduced into a piecewise affine (PWA) model according to the aerodynamics properties. Secondly, based on the equivalence between the PWA model and mixed logical dynamical (MLD) model, the MLD Cited by: 6.

Integrated Sliding Mode Autopilot-Guidance for Dual-Control Missiles Article in Journal of Guidance Control and Dynamics 30(4) July. The performance characteristics of the autopilot must have a fast response to intercept a maneuvering target and reasonable robustness for system stability under the effect of Author: Paul B.

Jackson. Integrated Design of Agile Missile Guidance and Autopilot Systems By P. Menon* and E. Ohlmeyer++ Abstract Recent threat assessments by the US Navy have indicated the need for improving the accuracy of defensive missiles.

This objective can only be achieved by enhancing the performance of theFile Size: KB. missile autopilot design by projective control theory a thesis submitted to the graduate school of natural and applied sciences of middle east technical university. describes the longitudinal autopilot model of a tailed.

controlled guided homing missile with one accele. rometers and one rate gyro whereas. the accelerometer is. putted coincidence with c. enter of gravity of the missile [9]. ction. presents two-loop autopilot design. with a cascade PI compensator.

A derivation of missile model File Size: 1MB. ii Approval of the thesis: DESIGN, MODELING, GUIDANCE AND CONTROL OF A VERTICAL LAUNCH SURFACE TO AIR MISSILE Submitted by RAZİYE TEKİN in partial fulfillment of the requirements for the degree of Master of Science in Electrical and Electronics Engineering Department, Middle East Technical University by, Prof.

Canan Özgen _____File Size: 2MB. The present work is concerned with improving the performance of an anti-tank guided missile system belonging to the first generation via adaptive synthesis of guidance systems.

The online system identification is required to Cited by: 2. analysis of an autopilot for the guidance system. Then, its performance is justified against the This paper is devoted to the autopilot design for a missile system using the artificial neural networks approach.

The paper starts with configuration (b). An Autopilot is a System of Equations that Takes Commands and Missile State Measurements as Inputs and Computes a Control Command that Stabilizes the Missile and Forces the Missile State to Track the Command Command Autopilot Actuator Airframe Sensors The Combination of Autopilot, Actuator, Airframe, and Sensors is Sometimes Called the "Autopilot.".

missile model has accounted the gravity effect, the missile parameters' dynamics, and the nonlinear aerodynamics. In a similar manner, the missile velocity and height have been considered as a function of its states. Also, the dynamic acceleration commands in boosting phase are regarded in theFile Size: KB.

Robust Missile Autopilot Design using Dynamic Inversion and PI Control Sungjin Cho, Seung-Hwan Kim, Dong-Gyun Choe Agency for Defense Development, P.O. BoxYuseong, Daejeon,Republic of Korea Abstract: This paper presents a robust nonlinear autopilot design method based on dynamic inversion and PI control law.

An autopilot in a missile is a closed loop system and it is a minor loop inside the main guidance loop. If the missile carries accelerometer and rate gyros to provide additional feedback into the missile servos to modify the missile motion then the missile control system is File Size: KB.

An Optimal Missile Autopilot Design Model: /IJEIS This article describes how one optimal design method is given to the design of missile autopilots. This method profits from an exhaustive method. By thisAuthor: Yong-chao Chen, Xin-bao Gao, Min Gao, Dan Fang.

MISSILE AUTOPILOT DESIGN USING CONTRACTION THEORY-BASED OUTPUT FEEDBACK CONTROL Nonlinear Contracting Observer Consider the observable and controllable nonlinear system given as, (,) x fxut yhxt (11) where x Ru R y R t Rnp m, and the f and h are continuously differentiable functions. A nonlinear state observerFile Size: KB.

Rank-to-turn steering may provide improved performance for future missile systems. For example, a missile can be designed to have very high lifting capability in one direction. This lift vector can then be directed using BTT control.

In addition, the ramjet engine chin inlet configuration is Author: Frederick W. Riedel. The FGM Javelin is an American man-portable fire-and-forget anti-tank missile fielded to replace the M47 Dragon anti-tank missile in US service.

It uses automatic infrared guidance that allows the user to seek cover immediately after launch, as opposed to wire-guided systems, like the Dragon, which require the user to actively guide the weapon throughout the : Anti-tank missile. Meteor is an active radar guided beyond-visual-range air-to-air missile (BVRAAM) developed by offers a multi-shot capability against long range manoeuvring targets, jets, UAVs and cruise missiles in a heavy electronic countermeasures (ECM) environment with range well in excess of kilometres (81 nmi).

Its no-escape zone of over 60 km is largest among air-to Manufacturer: MBDA. Missile and Target Introduction This book is the user manual for the missile aerodynamics and air-to-air missile codes. Together these codes simulate the interception of a target by a missile.

The missile aerodynamics code de nes the aero-dynamic, guidance and control properties of the missile. The open sourceFile Size: 1MB. Abstract — An adaptive CMAC-Supervisory (CMS) controller is proposed for aerodynamic missile pitch autopilot control.

Missile motion is nonlinear and time-variant with unknown parameters. The controller is a combination of a supervisory controller and an adaptive CMAC (Cerebellar Model Articulation Controller).

A missile flight simulation is a computational tool that calculates the flight of a missile from launch until it engages the target. The simulation is based on mathematical models of the missile, target and environment. This book provides instruction for the preparation of these mathematical models to simulate the flight of a surface-to-air 4/5(9).

A nonlinear, coupled, 3-axis generic missile model is used and the LPV method yielded excellent results. There are also examples of pitch-axis missile autopilot designs using sliding mode control [16], H∞ synthesis [17] and µ synthesis [18].

These methods presented the robust missile autopilot design under the nonlinear uncertain models. Robust autopilot design of uncertain bank-to-turn missiles using state-space disturbance observers This item was submitted to Loughborough University's Institutional Repository by the/an author.

Citation: ANGY, J., CHEN, W-H. and LI, S., Robust autopilot de-sign of uncertain bank-to-turn missiles using state-space disturbance observers. This chart lists the primary factors which must be considered in determining the suitability of the B as a missile carrier in any given application.

The subsequent charts give, first, the general - capabilities of the in each of these areas, and then cover spe- cific examples illustrating these capabilities for missiles in the range of. minimum phase characteristics, was used to design the acceleration controller.

In [13], the missile acceleration autopilot was designed using the input-output pseudo-feedback linearization with an augmented lateral acceleration signal to relieve the effect of the nonminimum phase. The eigenstructure assignment [] and the asymptoticCited by: 2.

The missile guidance computer (MGC) was the IBM ASC Stage I contained three gyros and the Autopilot. The Autopilot attempted to keep the missile straight during first stage flight and sent commands to the IMU on the 2nd stage. The IMU would compensate and send steering commands to the engine : Intercontinental ballistic missile.

missile, one or more targets (i.e., ships) and a marine environment (ocean and atmosphere). The missile includes several subsystems: radar emitter, receiver and video processor subsystems, and propulsion and guidance subsystems.

A target ship, as seen by the missile radar subsystem, is composed of multiple (thousands to millions). Abstract: The missile pitch-axis autopilot design is revisited using a new and recently available LPV control technique.

The missile plant model is characterized by an LFT representation. The synthesis task is conducted by exploiting new capabilities of the LPV method: a set of H2=H¥ criteria is considered and different Lyapunov and scaling.

American Lawrence Sperry created the first successful autopilot in As the son of the prolific inventor Elmer Sperry, who would file over individual patents during his lifetime, Lawrence was fascinated with aviation from an early age and even by the age of 19 he was already working on a system that has changed remarkably little over the following hundred years.

It analyzes autopilot designs, seeker system designs, guidance laws and theories, and the internal and external disturbances affecting the performance factors of missile guidance control systems.

The text combines detailed examination of key theories with practical coverage of methods for advanced missile guidance control systems.ally with the autopilot engaged in go-around mode.

The captain, who had apparently inherited the ap- proach from Thesethe first officer after an autothrottle but not autopilot disengagement, ()ultimately lost the struggle with the aircraft as the autopilot trimmed the aircraft nose up in response to the captain's continued.It also contains a chapter on the recent integrated-guidance-and-control approach, which exploits the synergy between the autopilot and guidance system design.

The book then outlines techniques applied to the missile guidance problem, including classical guidance, sliding mode-based, and differential game-based techniques.