Results 181 to 190 of about 44,798 (233)
Distortions of the radar signals envelope
Achievements of Modern Radioelectronics, 2022 N. A. Kushnerev +2 more
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Envelope radar cross section analysis of faired composite bodies
Digest on Antennas and Propagation Society International Symposium, 2003 The authors describe a method that is useful for defining realistic looking models of complex scattering structures with faired junctions. The resulting models are also well suited for HF radar cross section (RCS) analysis. It is shown that the envelope technique is particularly useful for efficiently computing and displaying full volumetric RCS ...
B.J.E. Taute, W. D. Burnside, I.J. Gupta
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Constant envelope waveform design for MIMO radar
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010 A method for generating constant envelope (CE) waveforms to realise a given covariance matrix for a closely spaced MIMO radar system is proposed. In contrast to available algorithms, the technique provides closed form solutions for finding the required waveforms and suggests that waveforms can be chosen from finite alphabets such as binary-phase shift ...
Sajid Ahmed +3 more
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Target Recognition of Radar HRRP Using the Envelope Reconstruction
, 2017 In target recognition based on high range resolution profile (HRRP), the major challenge is to extract invariant and robust features from the measured high dimension range profile samples. Focused on the reduction of dimensionality, a novel algorithm for extracting HRRP features is proposed in this paper, and the Legendre moments with orthogonal and ...
Pengfei Zhang +3 more
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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), 2020 Identification 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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On joint phase-envelope use in radar CFAR processing
SPIE Proceedings, 2005 A 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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A radar detector using quantized envelope samples
Journal of the Franklin Institute, 1986 The detection of a sequence of echo pulses with random carrier phase is an important problem in radar. It is well known that, to a first approximation, the optimum receiver is a quadratic detector for small signal-to-noise ratios and is a linear detector for large signal-to-noise ratios.
C.C. Lee, G. J. Jaw
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Constant envelope chirped OFDM for power-efficient radar communication
2016 IEEE Information Technology, Networking, Electronic and Automation Control Conference, 2016 In increasing radar performance, radar waveform and waveform attributes are key elements. Among different waveforms, Linear Frequency Modulation (LFM) or simply chirp waveform attains best performance in terms of Doppler tolerance and time resolution.
Mussa Ally Dida +3 more
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Constant envelope OFDM signals for radar applications
2008 IEEE Radar Conference, 2008 Orthogonal frequency division multiplexing (OFDM) radar signals, because of their prominent properties have been recently of interest of many researchers. But the large amplitude fluctuations of the OFDM signals makes it susceptible to system nonlinearities.
Reza Mohseni +2 more
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Schedulability Envelope for Real-Time Radar Dwell Scheduling
IEEE Transactions on Computers, 2006This paper proposes novel techniques for scheduling radar dwells in phased array radar systems. In order to handle complex physical characteristics such as dwell interleaving, transmitting duty cycle constraint, and energy constraint, we propose a notion of schedulability envelope.
Lee, Chang-Gung +3 more
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