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Radar detection of low-altitude targets in a maritime environment
IEEE Transactions on Antennas and Propagation, 1995Results from a unique analytical and experimental effort to assess low-altitude, short-range, radar detection capabilities in an evaporation ducting environment are presented. Within the horizon, the duct may shift the location of the last interference null several kilometers in range, which may cause nondetection at ranges where detection is expected ...
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Radar Tracking of Low-Altitude Targets
IEEE Transactions on Aerospace and Electronic Systems, 1974The antenna elevation control signal and the associated staticequilibrium equations are analyzed for the case of tracking of lowaltitude targets for both monopulse and conical-scanning radar. Three possible equilibrium positions of the radar antenna under static operating conditions are ascertained.
GIULI, DINO +3 more
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Improved fast compressive tracking for low-altitude flying target tracking
Multimedia Tools and Applications, 2021Effective and efficient low-altitude flying target tracking in the field of visual tracking is challenging due to factors such as background interference, a small target imaging area, scale changes, and in-plane/out-of-plane rotation. Fast compressive tracking is an effective algorithm that combines compressive sensing theory and the naive Bayes ...
Yuanhao Cheng, Sunan Wang, Dehong Yu
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A Novel Research in Low Altitude Acoustic Target Recognition Based on HMM
International Journal of Multimedia Data Engineering and Management, 2021This paper introduces an improved HMM (hidden Markov model) for low altitude acoustic target recognition. To overcome the limitation of the classical CDHMM (continuous density hidden Markov model) training algorithm and the generalization ability deficiency of existing discriminative learning methods, a new discriminative training method for estimating
Hui Liu 0032 +2 more
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A method for determination of the coordinates of a low-altitude target
Journal of Communications Technology and Electronics, 2012Operation of a monopulse meter of the objects’ angular coordinates under the multipath propagation conditions during tracking of the objects located at small elevation angles above the underlying surface, the so-called low-altitude targets (LATs), is analyzed.
V. A. Balagurovskii +2 more
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Passive tracking using TDOA for super-low-altitude target
2010 11th International Conference on Control Automation Robotics & Vision, 2010A novel near-space floating platform aided passive location method for super-low-altitude target using time difference of arrival(TDOA) is proposed. The new method uses a near-space floating platform as the baseline in the height to form a redundant location system consisting of several subsystems.
Panlong Wu +3 more
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Group Tracking of Flock Targets in Low-Altitude Airspace
2011 IEEE Ninth International Symposium on Parallel and Distributed Processing with Applications Workshops, 2011Bird-strike avoidance system usually uses marine radar with limited resolution for surveillance of low-altitude airspace. When the target of interest is flock in high target density, the targets are so closely spaced so one cell on the radar display always represents several birds. Therefore, it is sometimes not necessary to detect and track individual
Weishi Chen +3 more
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Frequency Diversity in Low-Altitude Target DOA Estimation
2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019In the presence of sea-surface multipath, multipath distortion has been a challenge problem for low elevation target's direction of arrival (DOA) estimation in monopulse radar. Frequency diversity has been explored as a technique in communication to resist multipath and propagation effects.
Min Jiang +4 more
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A plan for radar to search for ultra-low-altitude target
ICMMT'98. 1998 International Conference on Microwave and Millimeter Wave Technology. Proceedings (Cat. No.98EX106), 2002In this article, a radar with the characteristics of expenditure, short-period of research that can be designed to search and to detect effectively the low-altitude targets in a certain coverage is put forward. As for that of the airborne warning radar, many technological problems should still be worth discussing, especially in the signal-processing ...
null Guoqi Ni, null Dingsong Hong
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Low Altitude Target Tracking Algorithm with Acoustic Wireless Sensor Network
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010For the problem of low altitude target tracking with acoustic wireless network, the signal propagation time delay effect must be considered. The target has been far away from its emitting position when the signal is received by sensors. This effect leads to synchronous sensors in the measurement space sample asynchronously in the state space and the ...
Yunfei Guo +4 more
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