Results 231 to 240 of about 2,235,948 (277)

Novel classification fusion techniques for military target classification

SPIE Proceedings, 2007
The objective of this paper is to develop novel classification structures for military targets detection and recognition by employing different fusion techniques. In real applications, the great diversity of materials in the background areas and the similarity between the background and target signatures result in high false alarm rates and large ...
Ting Liu, George A. Lampropoulos
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Classification and Target Tempo

2016
A target can be classified based upon an IFF signal, a visual image, or something similar. But an uncooperative target will not transmit a valid IFF signal and will attempt to obscure its image from the defender. Can the target be identified from its motion pattern; e.g., turn rates, tempo?
David D. Sworder, John E. Boyd
openaire   +1 more source

Discrimination measures for target classification

IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217), 2002
Target detection does not necessarily yield target classification since the detected targets may belong to different classes and cannot be differentiated one from another by target detection. This often occurs when no prior target knowledge is available.
null Shao-Shan Chiang, null Chein-I Chang   +1 more
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Acoustic classification of submerged targets

ICASSP '82. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
Broadband signal processing techniques have introduced new possibilities in acoustic classification through detailed examination of the target's form function (backscattered pressure vs frequency). The form function is unique for a body of given size, shape and composition and correlation with analytically or empirically obtained form function ...
S. Numrich, L. Frank, L. Dragonette
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Multisensor Target Detection And Classification

SPIE Proceedings, 1988
Abstract : In this thesis a new approach to the detection and classification of tactical targets using a multifunction laser radar sensor is developed. Targets of interest were tanks, jeeps, trucks, and other vehicles. Doppler images were segmented by developing a new technique which compensates for spurious doppler returns.
Dennis W. Ruck, Steven K. Rogers, James P. Mills, Matthew Kabrisky   +3 more
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Passive polarimetric IR target classification

IEEE Transactions on Aerospace and Electronic Systems, 2001
Automatic detection and recognition of targets by means of passive IR sensors suffer from limitations due to lack of sufficient contrast between the targets and, their backgrounds and among the facets of a target. A set of novel algorithms is designed and tested that uses the target and background Stokes parameters for detection, segmentation, and ...
F.A. Sadjadi, C.S.L. Chun
openaire   +1 more source

Bispectrum-based radar target classification

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344), 2002
With the good performance of higher-order spectra (HOS) techniques for non-Gaussian signal processing and Gaussian noise suppression capability, an AR model parametric bispectrum estimation is presented for conventional radar target return analysis. A reasonable selection of target bispectrum features is made with a formation of target feature vector ...
null Ji Hongbing, null Li Jie, null Xie Weixin, null He Wei   +3 more
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Target classification by radar

IET Seminar on High Resolution Imaging and Target Classification, 2006
Target classification by radar has enormous potential with many important applications. So far, with a couple of notable exceptions, this has proved to be an extremely challenging problem with no obvious solution. The chief method for improving the quality of information gathered has been to improve resolution in both range and cross-range dimensions ...
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Target Discrimination and Target Classification in Echolocating Bats

1988
Geometrical and textural properties of reflecting targets result in a specific filtering of the echolocation sounds used by the various bat species. They are therefore represented in the temporal and spectral structure of the echoes. These echo features can be used as cues for target recognition, classification and discrimination.
J. Ostwald, H.-U. Schnitzler, G. Schuller   +2 more
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Target classification by conventional radar

Proceedings of International Radar Conference, 2002
An approach to aircraft target classification by conventional radar is presented that uses the engine modulation on radar echoes from the detected target. The echo series are rearranged into a graph and the modulation signatures are extracted by an optical Fourier transform.
null Huang Jianjun, null Huang Jingxiong, null Xie Weixin   +2 more
openaire   +1 more source