Results 151 to 160 of about 11,174 (173)
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Evaluating photoscreeners II: MTI and Fortune videorefractor
Australian and New Zealand Journal of Ophthalmology, 1999Background: Amblyopia is a public health problem, usually amenable to treatment if detected early. Photoscreeners are camera‐based instruments which can detect risk factors for amblyopia such as squint, refractive errors and media opacities. Objective: To evaluate two commercially available photoscreeners, namely the MTI photoscreener (Medical ...
Cooper, C. D. +5 more
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SPIE Proceedings, 2006
This paper examines the theory, application, and results of using single-channel synthetic aperture radar (SAR) data with Moving Reference Processing (MRP) to focus and geolocate moving targets. Moving targets within a standard SAR imaging scene are defocused, displaced, or completely missing in the final image.
Steven Scarborough +5 more
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This paper examines the theory, application, and results of using single-channel synthetic aperture radar (SAR) data with Moving Reference Processing (MRP) to focus and geolocate moving targets. Moving targets within a standard SAR imaging scene are defocused, displaced, or completely missing in the final image.
Steven Scarborough +5 more
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IEEE International Conference on Radar, 2002
The performance of adaptive moving target indication (MTI) filters for use on airborne radar platforms is addressed. Clutter returns received by a moving radar exhibit a Doppler shift which depends on the platform velocity, on the cosine of the angle between the flight axis, and the position of the individual scatterer.
R. Klemm, J. Ender
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The performance of adaptive moving target indication (MTI) filters for use on airborne radar platforms is addressed. Clutter returns received by a moving radar exhibit a Doppler shift which depends on the platform velocity, on the cosine of the angle between the flight axis, and the position of the individual scatterer.
R. Klemm, J. Ender
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Sidelobe minimization in MTI processing
SPIE Proceedings, 2011Moving target indication (MTI) algorithms often operate within a relatively narrow frequency band relying on Doppler processing to detect moving targets at long standoff ranges. At these standoff ranges, received wavefronts impinging on a linear array can be considered planar, enabling implementation of a variety of phase-based beam-forming ...
Kenneth Ranney +3 more
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Correlation Effects of MTI Filters
IEEE Transactions on Aerospace and Electronic Systems, 1977A frequency domain approach for determining the effective number of independent pulses at the output of a square law detector in a moving target indicator (MTI) system leads to a definition which gives the same asymptotic results as given by a previous definition.
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On the Optimization of MTI Clutter Rejection
IEEE Transactions on Aerospace and Electronic Systems, 1974In this paper is formulated the problem of optimization of the improvement factor of a nonrecursive MTI by minimization of a quadratic form. The minimum normalized clutter output (a reciprocal of the average improvement factor) is the minimum eigenvalue of this quadratic form, and the corresponding eigenvector is the optimal weight to be used in this ...
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Quantization Requirements in Digital MTI
IEEE Transactions on Aerospace and Electronic Systems, 1977To minimize hardware complexity, it is desirable to implement a digital moving target indicator (MTI) with the fewest number of quantization levels. The reduction of the clutter cancellation ability of single-and double-canceller MTI's is discussed with binominal weighting as a function of the number of levels and the spacing of the levels.
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MTI Programs: Teaching and Learning
2019The Master of Translation and Interpreting (MTI) was first offered by universities in China in 2007. By 2018, 249 universities in China were offering MTI degrees. The author of this paper conducted a survey of 205 universities offering MTI programs across the country.
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Proceedings of the IEEE, 1977
MTI signal processing correlates the independent input noise and thus degrades detection performance when the MTI pulses are integrated. Using simulation techniques, this degradation called the MTI noise integration loss is calculated for small and intermediate sample sizes.
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MTI signal processing correlates the independent input noise and thus degrades detection performance when the MTI pulses are integrated. Using simulation techniques, this degradation called the MTI noise integration loss is calculated for small and intermediate sample sizes.
openaire +1 more source