Results 171 to 180 of about 45,125 (224)
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Synthetic aperture radar imaging simulator for pulse envelope evaluation
Journal of Applied Remote Sensing, 2017A simulator for spotlight synthetic aperture radar (SAR) image formation is presented. The simulator produces radar returns from a virtual radar positioned at an arbitrary distance and altitude. The radar returns are produced from a source image, where the return is a weighted summation of linear frequency-modulated (LFM) pulse signals delayed by the ...
Kerry L. Hill +3 more
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On joint phase-envelope use in radar CFAR processing
SPIE Proceedings, 2005A method assuming linear phase drift is presented to improve radar detection performance. Its use is based on the assumption that the target illumination time comprises multiple coherent pulses or coherent processing intervals (CPI). For example in a conventional scanning radar, this often inaccurate information can be used for statistical data mapping
Juho Vihonen +4 more
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Finite Alphabet Constant-Envelope Waveform Design for MIMO Radar
IEEE Transactions on Signal Processing, 2011The design of waveforms with specified auto- and cross-correlation properties has a number of applications in multiple-input multiple-output (MIMO) radar beampattern design. In this work, two algorithms are proposed to generate finite alphabet constant-envelope (CE) waveforms with required cross-correlation properties.
S. Ahmed +3 more
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Multicarrier constant envelope OFDM signal design for radar applications
AEU - International Journal of Electronics and Communications, 2010Abstract Orthogonal frequency division multiplexing (OFDM) radar signals have been introduced for high range resolution radars. These signals have prominent properties such as favorable ambiguity function, high bandwidth efficiency, and possibility of use in dual mode radar/communication systems.
Reza Mohseni +2 more
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Minimax envelope constrained filter for radar and communications applications
4th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services. TELSIKS'99 (Cat. No.99EX365), 2003The envelope constrained filter (ECF) is a useful approach to filter design. The authors of the original concept have proposed algorithms for solving the ECF design problem as well. These algorithms use the tools of nonlinear programming. They are based on a feasible solution assumption. In other words, they perform well when the solution can be found.
A. Petrovic, A.J. Zejak, B. Zrnic
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Echo envelope distribution in high resolution radar imaging system
Experience of Designing and Applications of CAD Systems in Microelectronics. Proceedings of the VI-th International Conference. CADSM 2001 (IEEE Cat. No.01 EX473), 2002An investigation of the stochastic features of radar image speckle patterns is presented in the paper. An analytical relation between the envelope distribution law of the received signal and scattering parameters of the object at radar imaging is derived.
I. Prudyus, A. Synyavskyy
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Constant envelope OFDM for power-efficient radar and data communications
2009 International Waveform Diversity and Design Conference, 2009This paper offers a tutorial treatment of constant envelope OFDM, covering power efficiency and spectral efficiency tradeoffs and discusses recent advancements in applying CE-OFDM to radar. A dual-use architecture is proposed offering both radar and communications capabilities on a common platform.
Steve C. Thompson, John P. Stralka
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Radar Pulse on Pulse Identification Parallel FFT and Power Envelope Algorithm
2020 11th IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), 2020Identification of pulse radar signals is a crucial component in radar receiver processing. Extracting RF radar pulse information in wideband receivers in a dense and noisy environment without prior knowledge of the signal is challenging in high-risk real-time scenarios.
Jordan Juliano +3 more
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Envelope Extraction Algorithm for Amplitude Sorting of Radar Emitter Signals
2019 IEEE 2nd International Conference on Computer and Communication Engineering Technology (CCET), 2019The sorting accuracy of the radar emitter signal-sorting algorithm is reduced in a complex electromagnetic environment. In view of this problem, we proposed an envelope extraction algorithm for amplitude sorting of radar emitter signals in this paper.
Wenting Yang +5 more
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Two‐tone continuous‐wave Doppler radar based on envelope detection method
Microwave and Optical Technology Letters, 2020AbstractA continuous‐wave (CW) Doppler radar using two‐tone frequencies is presented for the measurement of short‐range distance. The envelope detection method is proposed to discriminate each frequency signal in the output waveform of the two‐tone CW Doppler radar sensor.
Jae‐Hyun Park, Jong‐Ryul Yang
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