Results 191 to 200 of about 44,798 (233)
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An Approach for Sleep Apnea Detection based on Radar Spectrogram Envelopes
2021 18th European Radar Conference (EuRAD), 2022Microwave Sensing, Signals ...
Han, Y. (author) +2 more
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Constant envelope fractional fourier transform based waveform libraries for MIMO radar
2014 Sensor Signal Processing for Defence (SSPD), 2014 In this paper an efficient technique to generate novel libraries of phase-coded waveforms with constant envelope aimed at optimizing signal retrieval is presented. The modulation technique is based on the Fractional Fourier Transform (FrFT), where the signal waveforms retain their constant modulus.
Christos Ilioudis +3 more
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A frequency modulated envelope delay FSCW radar for multiple-target applications
IEEE Transactions on Instrumentation and Measurement, 2000 A frequency modulated (FM) FSCW radar technique that uses the envelope delay to determine range information is described. The analysis shows that the measured delay produced by the FM FSCW system consists of a term proportional to the delay of the strongest reflection and a superimposed oscillation with a period equal to the difference in the target ...
Douglas L. Maskell, G.S. Woods
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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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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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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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