Results 301 to 310 of about 138,585 (331)
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Proceedings of the IEEE, 1974
The problems of low-angle tracking over the earth's surface are explored in the light of rough-surface scattering theory. A detailed model of diffuse scattering is constructed which agrees with available test data and which permits the power distributions in radar coordinates to be estimated.
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The problems of low-angle tracking over the earth's surface are explored in the light of rough-surface scattering theory. A detailed model of diffuse scattering is constructed which agrees with available test data and which permits the power distributions in radar coordinates to be estimated.
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Informative Radar Selection for Tracking in Radar Networks
IET International Radar Conference 2015, 2015In radar networks, radar selection has played a more and more important role. Many radar selection methods have been proposed. Recently a novel method which is based on sparsity-aware matrix decomposition has been proposed to identify informative sensors for target tracking. However, this method had stringent constraints and was under the assumption of
Xueting Li Xueting Li +5 more
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IEEE Transactions on Aerospace and Electronic Systems, 1982
The track acquisiton range of a track-while-scan radar is defined as the range at which the cumulative probability of M detections in N scans is 90 percent. Track acquisition ranges for 2 out of 3, 2 out of 4, and 3 out of 4 detection criteria are presented for Swerling 0, 1, and 3 target models.
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The track acquisiton range of a track-while-scan radar is defined as the range at which the cumulative probability of M detections in N scans is 90 percent. Track acquisition ranges for 2 out of 3, 2 out of 4, and 3 out of 4 detection criteria are presented for Swerling 0, 1, and 3 target models.
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2010
When radar systems are discussed in the literature or the remainder of this text, it is in the context of a sensor providing observations of the environment. While some of those measurements are responses from coherent waveforms of finite duration, the environment is treated as stationary with at most linear motion on the targets.
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When radar systems are discussed in the literature or the remainder of this text, it is in the context of a sensor providing observations of the environment. While some of those measurements are responses from coherent waveforms of finite duration, the environment is treated as stationary with at most linear motion on the targets.
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SPIE Proceedings, 1990
This paper deals with the theory of monopulse angle tracking with a laser radar employing heterodyne detection. The detector is assumed to be of the quadrant type. The target's angular location is inferred from the location of its diffraction pattern in the detector plane.
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This paper deals with the theory of monopulse angle tracking with a laser radar employing heterodyne detection. The detector is assumed to be of the quadrant type. The target's angular location is inferred from the location of its diffraction pattern in the detector plane.
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1972
Abstract : The report describes an algorithm that is used to determine the maximum likelihood position of an aircraft from the measurement of one radar's range, azimuth, and elevation and from an altitude measurement of the aircraft. The variances of these measurements must also be known.
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Abstract : The report describes an algorithm that is used to determine the maximum likelihood position of an aircraft from the measurement of one radar's range, azimuth, and elevation and from an altitude measurement of the aircraft. The variances of these measurements must also be known.
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Track quality estimation for multiple-target tracking radars
Proceedings of the IEEE National Radar Conference, 2003A method is developed for estimating track quality for a multiple-target tracking radar, such as an electronically scanned array radar or track-while-scan system. It is assumed that tracking error residuals and error variance estimates are available, as is the case when minimum-variance track filters are used. A normalized distance function is selected
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Tracking noise measurements on a manual tracking radar
Transactions of the IRE Professional Group on Antennas and Propagation, 1952Tracking noise measurements have been made on a manual tracking, sector-scan radar, Methods have been devised to measure the operator's tracking error, which has been assumed to be the principal source of tracking noise. In tests made with an actual moving target, it is extremely difficult to distinguish between tracking errors and the true target ...
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Null-Tracking Doppler-Navigation Radar
IEEE Transactions on Aerospace and Navigational Electronics, 1963A Doppler navigation radar is described which can reduce sea-bias errors to a negligible degree. The technique also reduces all other errors which result from asymmetrical distortion of the echo spectrum. Spectrum distortion is caused by modulation effects (altitude holes), by angle-sensitive reflectivity of certain types of terrain, and by asymmetric ...
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