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Simulation Of A Dynamic Aircraft Radar Signature
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Book Synopsis Simulation of a Dynamic Aircraft Radar Signature by : Joseph J. Sacchini
Download or read book Simulation of a Dynamic Aircraft Radar Signature written by Joseph J. Sacchini and published by . This book was released on 1996-06-01 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a package which simulates the dynamic radar signatures a radar receiver would expect when tracking a moving target such as an aircraft or a missile. The package consists of several MATLAB codes. The basic engagement simulated is a radar, such as seen on a fully active missile seeker, engaging a target such as an aircraft. The static scattering characteristics of the target are required as an input to the package. The package then simulates the radar-target engagement dynamics modeling the target motion and the physical target vibrations which effect the signature the radar receives. The outputs of the package are the scattered electric field, the Doppler shift, and the angular tracking error, or glint, all as seen by the radar. This package is meant to aid a hardware-in-the-loop simulation of a radar-target engagement.
Book Synopsis Simulation of Dynamic Radar Cross-section of a Near Earth Satellite by : George Robert North
Download or read book Simulation of Dynamic Radar Cross-section of a Near Earth Satellite written by George Robert North and published by . This book was released on 1964 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of an Aircraft's Rigid Dynamic and Aeroelastic Response for Evaluation of Radar Motion Compensation Techniques by : Lee DeWitt Peterson
Download or read book Simulation of an Aircraft's Rigid Dynamic and Aeroelastic Response for Evaluation of Radar Motion Compensation Techniques written by Lee DeWitt Peterson and published by . This book was released on 1983 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Analysis, Dynamic Simulation and Control of Mass-actuated Airplane by : Sukru Akif Erturk
Download or read book Performance Analysis, Dynamic Simulation and Control of Mass-actuated Airplane written by Sukru Akif Erturk and published by . This book was released on 2016 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The control of space, aerial and underwater vehicles requires moment generation mechanisms to change their orientation. In addition to or in place of conventional moment generation actuators, internally moving-mass actuation has been proposed and/or used for such vehicles. The primary principle for mass-actuation is to reposition gravitational force to change the associated moment while the secondary effect may come from the inertial force due to the motion of the masses. Recent development/miniaturization in flight control sensor, computing and actuation, and electric motors and expansion of applications for small UAV (Unmanned Aerial Vehicle) offer a potential for implementation of internal mass-actuation in small UAV. The massactuation offers various advantages over the conventional mechanisms in airplane flight such as reduced drag and lift loss due to aerodynamic control surface deflections, simplified wing and tail design, improved lift-generation performance of wing, smaller radar signature for stealth aircraft. This dissertation research investigates the feasibility and benefit of mass-actuation of a small UAV in various flight phases and full missions consisting of all these flight phases and transitions between them. Three different configurations of the same airplane are considered: (1) aero-actuated, conventional airplane with three standard aerodynamic control surfaces, aileron, elevator and rudder, (2) mass-actuated, a mass moving along the fuselage to mainly generate pitching moment, and another mass moving along the wing to generate rolling moment, and (3) mass-rudder actuated, mass-actuation as in case-2 augmented with a rudder. The airplane is an electric powered and has a single propeller at the nose. A full 6-DOF (Degrees of Freedom) nonlinear equations of motion are derived, including the terms modeling inertia forces induced by the motion of the internal masses, and the effect of this internal mass motion on the variation of the center of mass and inertia matrix. The dynamics of the electric motor of the propeller and the servos of the actuators are also modeled. The effect of the propeller on the dynamics of the aircraft is also included. Modeling also includes electric power consumption by the electric motor driving the propeller, and servos of the aerodynamic and mass actuators. An integrated simulation environment is developed that includes all these factors and can be switched between the different configurations defined above. Trim analyses of all three configurations of the airplane are carried out in all four flight conditions (steady climb, cruise, steady turn, steady descent). Trim analyses consider all the constraints of the control and state variables such as limits on the deflections of the aerodynamic surfaces, position of the mass actuators, battery provided voltage, and angle of attack. These analyses demonstrate the feasibility of flying the airplane with mass-actuation only within varying speed ranges depending on the actuation mechanism. The results also show the benefit of mass-actuation over the conventional aero-actuation in terms of range and endurance especially in cruise flight, as compared to the other two configurations. In the second phase of the research, controllability of the airplane with each actuation mechanisms is determined and compared over the feasible speed range of each trim condition. A new relative controllability metrics is defined and calculated for this purpose. This analysis, based on the linearized model of the aircraft in each trim flight condition, show that the mass-actuation provides full controllability with various degree over the speed ranges. Once the controllability is verified, an LQR-based gain scheduling controller is designed for each aircraft configuration to track commanded climb/descent rate, altitude, airspeed, and turn rate. These controllers are implemented in the integrated simulation environment to simulate various flight profiles including full missions that start with a hand-launch of the airplane, climb to a specified altitude, and cruise at that altitude with various commanded speed, and loiter with commanded left and right turn rates, and descend to land with varying approach speed. These simulations also demonstrate the feasibility potential benefits, and/or limitations of mass actuation.
Book Synopsis Radar Cross Section by : Eugene F. Knott
Download or read book Radar Cross Section written by Eugene F. Knott and published by SciTech Publishing. This book was released on 2004-06-30 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: The leading text and reference on radar cross section (RCS) theory and applications, this work presents a comparison of two radar signal strengths. One is the strength of the radar bean sweeping over a target, the other is the strength of the reflected echo senses by the receiver. This book shows how the RCS "gauge" can be predicted for theoretical objects.
Book Synopsis Measurements-Based Radar Signature Modeling by : Joseph T. Mayhan
Download or read book Measurements-Based Radar Signature Modeling written by Joseph T. Mayhan and published by MIT Press. This book was released on 2024-05-14 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: A high-level text that synthesizes diverse research areas for characterizing objects (targets) from radar data and establishes a novel analysis framework for a class of signal processing techniques useful for high-resolution radar signature modeling. The only text to integrate a diverse body of work on characterizing objects (targets) from radar data into a common analysis framework, this book brings together the results of research papers and technical reports providing improved resolution and precision in radar target signature modeling and target motion solutions. It offers comprehensive coverage related to basic radar concepts, signal representation, and radar measurements; the development of advanced analysis tools essential for high-resolution signature modeling; the development of novel wideband and narrowband radar imaging techniques; the application of 2D spectral estimation theory to wideband signal processing; ultra-wideband scattering phenomenology and sparse-band sensor data fusion; and the integration of field measurements into the radar signature modeling process. The analysis techniques developed in the text provide the framework for a novel approach, called measurements-based modeling (MBM), to model target signatures by incorporating measurement data into the signature model of the target. Extensive examples throughout compare the performance of the new techniques with that of conventional analysis techniques. The first systematic, comprehensive synthesis of wide-ranging research areas for characterizing targets from radar data A deeply researched, lucid presentation enriched by extensive illustrations and examples An essential reference for experts in radar and signal processing, professional engineers in related fields, and graduate students
Download or read book The Radar Game written by Rebecca Grant and published by . This book was released on 2010 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Much of [this book] is devoted to a basic discussion of how stealth works and why it is effective in reducing the number of shots taken by defensive systems. Treat this little primer as a stepping off point for discovering more of the complexities of low observability. ... [This book] should also shed light on why complex technologies like stealth cost money to field. The quest for stealth is ongoing... In fact, stealth aircraft will have to work harder than ever. The major difference from 1998 to 2010 is that defense plans no longer envision an all-stealth fleet. ... The radar game of 2020 and 2030 will feature a lot of assists and the tactics that go along with that."--P. 7.
Book Synopsis Radar Signature Simulation Support for General Dynamics Land Systems by : Richard B. Rakes
Download or read book Radar Signature Simulation Support for General Dynamics Land Systems written by Richard B. Rakes and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Level Aircraft Radar Simulation by : Ronald Lee Starr
Download or read book Low Level Aircraft Radar Simulation written by Ronald Lee Starr and published by . This book was released on 1970 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Dynamic Radar Cross Section Properties of the C-29 Aircraft Using First and Second Order Statistical Moments by : Robert Louis Kehr (CAPT, USAF.)
Download or read book Characterization of the Dynamic Radar Cross Section Properties of the C-29 Aircraft Using First and Second Order Statistical Moments written by Robert Louis Kehr (CAPT, USAF.) and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Methodology for Modeling Radar Detection Range in Air Combat Simulation by : Damon N. Lum
Download or read book A Methodology for Modeling Radar Detection Range in Air Combat Simulation written by Damon N. Lum and published by . This book was released on 1989 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this thesis is to develop a methodology for modeling fighter aircraft radar detection range performance. Response surface methodology is used to form a meta-model of the TAC BRAWLER Air Combat Model. Using experimental design theory, detection range data was collected using TAC BRAWLER and regressed to develop an equation for predicting radar detection range. The resulting equation is valid for specific ranges of the target's radar cross section, altitude, and airspeed and the attacker's altitude and airspeed. Keywords: Military theses. (kt).
Book Synopsis The World of Applied Electromagnetics by : Akhlesh Lakhtakia
Download or read book The World of Applied Electromagnetics written by Akhlesh Lakhtakia and published by Springer. This book was released on 2017-08-08 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book commemorates four decades of research by Professor Magdy F. Iskander (Life Fellow IEEE) on materials and devices for the radiation, propagation, scattering, and applications of electromagnetic waves, chiefly in the MHz-THz frequency range as well on electromagnetics education. This synopsis of applied electromagnetics, stemming from the life and times of just one person, is meant to inspire junior researchers and reinvigorate mid-level researchers in the electromagnetics community. The authors of this book are internationally known researchers, including 14 IEEE fellows, who highlight interesting research and new directions in theoretical, experimental, and applied electromagnetics.
Book Synopsis RJARS, Rand's Version of the Jamming Aircraft and Radar Simulation by : W. Sollfrey
Download or read book RJARS, Rand's Version of the Jamming Aircraft and Radar Simulation written by W. Sollfrey and published by . This book was released on 1988 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Dynamic Angle of Arrival Signals for Intercept Radars by : Donald Edgar Clark
Download or read book Simulation of Dynamic Angle of Arrival Signals for Intercept Radars written by Donald Edgar Clark and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A dynamic radar backscatter simulation technique for detailed target models by : Karl David Reinig
Download or read book A dynamic radar backscatter simulation technique for detailed target models written by Karl David Reinig and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: