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检索条件"任意字段=Conference on Radar Sensor Technology and Data Visualization"

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A gain rotation model with range rate

A gain rotation model with range rate

引用

SICE Annual conference

作者： Yaping Dai Yueyong Wang Weiqin Yang Xiangyu Wei Department of Automatic Control Beijing Institute of Technology Beijing China Department of Automatic Control Beijing University of Chemical and Technology Beijing China

A new model is presented in this paper, the dynamic equation is obtained in rectangular coordinate but the measurement equation is obtained in spherical coordinate that the sensor data combine velocity measurement with the usual position measurement (i.e. range, azimuth, elevation angle, range rate). The Kalman filter will be decoupled by proper coordinate transformation and using filter gain rotation algorithm. The filter accuracy is an improvement on that haven't the measurement of range rate.

关键词： Coordinate measuring machines Position measurement Velocity measurement Target tracking Time measurement Equations Filters Motion measurement Azimuth radar tracking

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Software for radar translation, visualization, editing, and interpolation

Software for radar translation, visualization, editing, and ...

引用

Proceedings of the 1995 27th conference on radar Meteorology

作者： Oye, Richard Mueller, Cynthia Smith, Sherrie Natl Cent for Atmospheric Research Boulder United States

The Atmospheric technology Division (ATD) of the National Center for Atmospheric Research (NCAR) has developed software for translation, visualization, inter-comparison, editing, and interpolation of ground-based and airborne radar data. These packages work in with interactive or batch modes. The capabilities are encompassed by three software programs called translators, solo and reorder.

关键词： Computer software

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System overview and applications of a panoramic imaging perimeter sensor

System overview and applications of a panoramic imaging peri...

引用

Proceedings of the 29th Annual 1995 International Carnahan conference on Security technology

作者： Pritchard, Daniel A. Sandia Natl Lab Albuquerque United States

This paper presents an overview of the design and potential applications of a 360-degree scanning, multi-spectral intrusion detection sensor. This moderate-resolution, true panoramic imaging sensor is intended for exterior use at ranges from 50 to 1500 meters. This Advanced Exterior sensor (AES) simultaneously uses three sensing technologies (infrared, visible, and radar) along with advanced data processing methods to provide low false-alarm intrusion detection, tracking, and immediate visual assessment. The images from the infrared and visible detector sets and the radar range data are updated as the sensors rotate once per second. The radar provides range data with one-meter resolution. This sensor has been designed for easy use and rapid deployment to cover wide areas beyond or in place of typical perimeters, and tactical applications around fixed or temporary high-value assets. AES prototypes are in development. Applications discussed in this paper include replacements, augmentations, or new installations at fixed sites where topological features, atmospheric conditions, environmental restrictions, ecological regulations, and archaeological features limit the use of conventional security components and systems.

关键词： Image sensors

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Algorithm for detecting groups of targets

Algorithm for detecting groups of targets

引用

Proceedings of the 1995 IEEE International radar conference

作者： Owirka, G.J. Halversen, S.D. Hiett, M. Novak, L.M. Massachusetts Inst of Technology Lexington United States

Lincoln Laboratory has developed a joint automatic target cueing/automatic target recognition system that uses only single polarization (HH), 1 m×1 m resolution data. The performance of the system was compared to the performance of HH, 1 m×1 m initial cues and HH, 1 ft×1 ft resolution data to simulate a high resolution sensor revisit. The performance of the system with the 1 ft×1 ft resolution revisit was superior to the performance of the 1 m×1 m system, which was respectable. It should be noted that the system with the 1 ft×1 ft resolution revisit would require more costly sensor and processor to perform the additional computations associated with higher resolution data.

关键词： radar systems

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Tactical cockpits - Flat panel design imperatives

Tactical cockpits - Flat panel design imperatives

引用

conference on Cockpit Displays II

作者： ADAM, EC MCDONNELL DOUGLAS AEROSP ST LOUISMO 63166

ISBN: (纸本)0819418153

A cockpit revolution is in the making. Many of the much ballyhooed, much promised, but little delivered technologies of the 70's and 80's will finally come of age in the 90's just in time to complement the data explosion coming from sensor and processing advances. Technologies such as helmet systems, large flat panel displays, speech recognition, color graphics, decision aiding and stereopsis, are simultaneously reaching technology maturities that promise big payoffs for the third generation cockpit and beyond. The first generation cockpit used round dials to help the pilot keep the airplane flying right side up. The second generation cockpit used Multifunction Displays and the HUD to interface the pilot with sensors and weapons. What might the third generation cockpit look like? How might it integrate many of these technologies to simplify the pilots life and most of all: what is the payoff? This paper will examine tactical cockpit problems, the technologies needed to solve them and recommend three generations of solutions.

关键词： Heads up displays sensors CRTs visualization Eye Cockpit displays radar Aerospace engineering Weapons Flat panel displays

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Space-time adaptive processing from an airborne early warning radar perspective 29

Space-time adaptive processing from an airborne early warnin...

引用

29th Asilomar conference on Signals, Systems and Computers, ACSSC 1995

作者： Day, James K. Lockheed Martin Ocean Radar and Sensor Systems 525 French Road UticaNY13502-5993 United States

ISBN: (纸本)0818673702

technology improvements over the last decade have made it feasible to consider digital Space Time Adaptive Processing, STAP, with associated sophisticated adaptive weight generation algorithms, for Airborne Early Warning (AEW) radar. The performance advantages to an AEW radar are significant because of the difficult interference environment it must operate in with large ground clutter returns combined with jamming and casual EMI. As an introduction, the unique aspects of the AEW radar clutter and jamming environment are described. A brief summary of AEW radar trades are presented in order to focus the discussion to specific STAP architectures of interest for the carrier based AEW radar problem. Two specific STAP architectures, Pre-Doppler and PPJ-Staggered Post-Doppler, are compared from an implementation and performance perspective. The performance comparisons are made quantitatively with the aid of actual broadband antenna element data and detailed STAP simulations. The paper concludes with a summary of the challenges that lay ahead for next generation STAP AEW radars. © 1996 IEEE.

关键词： Space time adaptive processing

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TACTICAL COCKPITS - THE COMING REVOLUTION 2

TACTICAL COCKPITS - THE COMING REVOLUTION

引用

SPIE Helmet-Mounted and Head-Mounted Displays and Symbology Design Requirements II conference

作者： ADAM, EC MCDONNELL DOUGLAS AEROSP ST LOUISMO 63166

ISBN: (纸本)0819418188

A cockpit revolution is in the making. Many of the much ballyhooed, much promised, but little delivered technologies of the 70's and 80's will finally come of age in the 90's just in time to complement the data explosion coming from sensor and processing advances. Technologies such as helmet systems, large flat panel displays, speech recognition, color graphics, decision aiding and stereopsis, are simultaneously reaching technology maturities that promise big payoffs for the third generation cockpit and beyond. The first generation cockpit used round dials to help the pilot keep the airplane flying right side up. The second generation cockpits used Multifunction Displays and the HUD to interface the pilot with sensors and weapons. What might the third generation cockpit look like? How might it integrated many of these technologies to simplify the pilots life and most of all: what is the payoff? This paper will examine tactical cockpit problems, the technologies needed to solve them and recommend three generations of solutions.

关键词： Heads up displays sensors CRTs visualization Eye Cockpit displays radar Aerospace engineering Flat panel displays Weapons

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Detection of multiple airborne targets from multi-sensor data

Detection of multiple airborne targets from multi-sensor dat...

引用

conference on radar/Ladar Processing and Applications

作者： FOLTZ, MA SRIVASTAVA, A MILLER, MI GRENANDER, U WASHINGTON UNIV ELECTR SYST & SIGNALS RES LABST LOUISMO 63130

ISBN: (纸本)0819419214

Previously we presented a jump-diffusion based random sampling algorithm for generating conditional mean estimates of scene representations for the tracking and recongition of maneuvering airborne targets. These representations include target positions and orientations along their trajectories and the target type associated with each trajectory. Taking a Bayesian approach, a posterior measure is defined on the parameter space by combining sensor models with a sophisticated prior based on nonlinear airplane dynamics. The jump-diffusion algorithm constructs a Markov process which visits the elements of the parameter space with frequencies proportional to the posterior probability. It consititutes both the infinitesimal, local search via a sample path continuous diffusion transform and the larger, global steps through discrete jump moves. The jump moves involve the addition and deletion of elements from the scene configuration or changes in the target type assoviated with each target trajectory. One such move results in target detection by the addition of a track seed to the inference set. This provides initial track data for the tracking/recognition algorithm to estimate linear graph structures representing tracks using the other jump moves and the diffusion process, as described in our earlier work. Target detection ideally involves a continuous research over a continuum of the observation space. In this work we conclude that for practical implemenations the search space must be discretized with lattice granularity comparable to sensor resolution, and discuss how fast Fourier transforms are utilized for efficient calcuation of sufficient statistics given our array models. Some results are also presented from our implementation on a networked system including a massively parallel machine architecture and a silicon graphics onyx workstation.

关键词： GLOBALSHAPE MODELS AUTOMATED TARGET RECOGNITION ATR) TARGET DETECTION JUMP-DIFFUSION PROCESSES

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System overview and applications of a panoramic imaging perimeter sensor

System overview and applications of a panoramic imaging peri...

引用

International Carnahan conference on Security technology

作者： D.A. Pritchard Sandia National Laboratories Albuquerque NM USA

关键词： Infrared detectors radar imaging Optical imaging Intrusion detection radar tracking Infrared image sensors Image sensors Infrared sensors data processing radar detection

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MULTI-sensor FUSION FOR THE DETECTION OF MINES AND MINE LIKE TARGETS

MULTI-SENSOR FUSION FOR THE DETECTION OF MINES AND MINE LIKE...

引用

conference on Detection Technologies for Mines and Minelike Targets

作者： HANSHAW, T U.S. Army Night Vision & Electronic Sensors Directorate (United States)

ISBN: (纸本)0819418528

The US Army's Communications and Electronics Command through the auspices of its Night Vision and Electronics sensors Directorate (CECOM-NVESD) is actively applying multisensor techniques to the detection of mine targets. This multisensor research results from the 'detection activity' with its broad range of operational conditions and targets. Multisensor operation justifies significant attention by yielding high target detection and low false alarm statistics. Furthermore, recent advances in sensor and computing technologies make its practical application realistic and affordable. The mine detection field-of-endeavor has since its WWI baptismal investigated the known spectra for applicable mine observation phenomena. Countless sensors, algorithms, processors, networks, and other techniques have been investigated to determine candidacy for mine detection. CECOM-NVESD efforts have addressed a wide range of sensors spanning the spectrum from gravity field perturbations, magentic field disturbances, seismic sounding, electromagnetic fields, earth penetrating radar imagery, and infrared/visible/ultraviolet surface imaging technologies. Supplementary analysis has considered sensor candidate applicability by testing under field conditions (versus laboratory), in determination of fieldability. As these field conditions directly effect the probability of detection and false alarms, sensor employment and design must be considered. Consequently, as a given sensor's performance is influenced directly by the operational conditions, tradeoffs are necessary. At present, mass produced and fielded mine detection techniques are limited to those incorporating a single sensor/processor methodology such as, pulse induction and megnetometry, as found in hand held detectors. The most sensitive fielded systems can detect minute metal components in small mine targets but result in very high false alarm rates reducing velocity in operation environments. Furthermore, the actual speed of adva

关键词： sensors Land mines Target detection Mining General packet radio service Night vision data fusion Feature extraction sensor technology Detection and tracking algorithms

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