Results 241 to 250 of about 245,884 (263)
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2014
Abstract A confluence of steady advances in radar enabling technologies, and ever increasing demands on radar performance in challenging environments, has afforded a re-examination of the fundamental theoretical framework upon which classical waveform design is based.
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Abstract A confluence of steady advances in radar enabling technologies, and ever increasing demands on radar performance in challenging environments, has afforded a re-examination of the fundamental theoretical framework upon which classical waveform design is based.
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Waveform design for dispersive SAR
2016 URSI International Symposium on Electromagnetic Theory (EMTS), 2016Electromagnetic pulses that travel through dispersive and lossy material may change their shape and lose a significant amount of energy. This distortion complicates imaging through dispersive and lossy material. Waveform design is one aspect to consider when trying to improve imaging capabilities.
Natalie A. Cartwright, Kaitlyn Muller
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Wideband MIMO Radar Waveform Design
IEEE Transactions on Signal Processing, 2019We consider the design of wideband multiple-input multiple-output (MIMO) radar waveforms to approximate a desired beampattern and achieve prescribed space-frequency nulling in a space-frequency region of interest. A general design model involving modulus, power, and energy constraints on the probing waveforms is introduced.
Xianxiang Yu +4 more
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Waveform design for electroseismic exploration
SEG Technical Program Expanded Abstracts 2005, 2005In earlier work, we described field tests that successfully detected electromagnetic-to-seismic (ES) conversions from gas sands and carbonate reservoirs. ES conversion amplitudes measure the electric properties of permeable rock with near-seismic resolution. This information is a new indicator of hydrocarbons.
Scott C. Hornbostel, A. H. Thompson
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Classical radar waveform design
2012The waveform determines the delay-Doppler response of a radar system. From that response, one can derive the radar's range and velocity resolution and their ambiguities. This chapter explains the concept and motivation for pulse compression. It then describes narrow-band signals and their major signal processing and analysis tools - the matched filter ...
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Waveform Design for MIMO Radars
IEEE Transactions on Aerospace and Electronic Systems, 2007We consider the problem of waveform design for multiple input/multiple output (MIMO) radars, where the transmit waveforms are adjusted based on target and clutter statistics. A model for the radar returns which incorporates the transmit waveforms is developed. The target detection problem is formulated for that model.
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Discrete Frequency-Coding Waveform Design
2007 14th IEEE International Conference on Electronics, Circuits and Systems, 2007A modified simulated annealing algorithm (MSAA) is proposed to design discrete frequency-coding (DFC) sequence sets with good autocorrelation and crosscorrelation properties. The proposed algorithm is a combination of simulated annealing and Hamming scan algorithm.
S.P Singh, K Subba Rao
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Adaptive waveform design for tracking
2012Waveform-agile design approaches for target tracking involve the adaptive configuration of the next transmit waveform by optimizing some cost function such as the predicted mean-squared tracking estimation error. These approaches are shown to be advantageous for complex radar tracking, such as when the received waveforms have originated from multipath ...
Antonia Papandreou-Suppappola +5 more
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Waveform Design for Tracking Systems
2015 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, 2015An adaptive waveform selection algorithm for target tracking systems in wideband environments is developed based on the minimization of the mean square tracking error which can be computed using the Cramer-Rao lower bounds. The performance advantage of the proposed adaptive waveform selection algorithm compared with minimum and maximum time band width ...
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Radar Spectrum Coexistence Waveform Design with Multiple Waveform Constraints
2023 8th International Conference on Computer and Communication Systems (ICCCS), 2023Qinxian Chen +5 more
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