Results 111 to 120 of about 9,918,458 (219)

Velocity Dealiased Spectral Estimators of Range Migrating Targets using a Single Low-PRF Wideband Waveform [PDF]

, 2013
Wideband radars are promising systems that may provide numerous advantages, like simultaneous detection of slow and fast moving targets, high range-velocity resolution classification, and electronic countermeasures.
Bidon, Stéphanie, Besson, Olivier, Deudon, François, Tourneret, Jean-Yves   +3 more
core   +1 more source

Mapping Glacier Bed Topography in Crevassed Regions: A New Passive Seismic Reflection Method Applied to Isunnguata Sermia, West Greenland

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Glacier bed topography is crucial for modeling ice mass loss. However, heavily crevassed regions are challenging to survey using conventional methods, leading to data gaps. We establish a passive seismic approach exploiting naturally occurring crevassing events recorded with a dense seismic array to image the ice–bed interface without spatial ...
Nicolas Paris, Florent Gimbert, Philippe Roux, Stephen J. Livingstone, Siobhan F. Killingbeck, Andrew J. Sole, Samuel H. Doyle, Jonathan D. Hawkins, Matthew W. Peacey, Adam D. Booth   +9 more
wiley   +1 more source

Stepped-Frequency Waveform radar demonstrator and its jamming

, 2009
In this paper we present some applications of the Stepped-Frequency Signal Waveform designed for the obtention of HRRP (High Resolution Range Profiles) and ISAR (Inverse Synthetic Aperture Radar) images for their ulterior use in NCTI (Non-Cooperative ...
Eduardo de Diego, Montiel, Ignacio, Enrique Millan, González-Blanco, Pilar, Borja Errasti, Millán, Enrique, De Diego, Eduardo, Ignacio Montiel, Pilar Gonzalez-Blanco, Errasti, Borja   +9 more
core   +1 more source

Cognitive Radar Waveform Optimization Based on Mutual Information and Kalman filtering

Entropy, 2018
A new strategy to optimizing the waveforms of cognitive radar under transmitted power constraint is presented. Our scheme is to enhance the performance of target estimation by minimizing the MSE (mean-square error) of the estimates of target scattering ...
Yu Yao, Junhui Zhao, Lenan Wu
doaj   +1 more source

A Radar Architecture for Joint Dynamic Spectrum Access and Target-Matched Illumination [PDF]

, 2017
In this study, we address a simple cognitive architecture to design a radar waveform that fills the gaps in the radio-frequency spectrum and matches the target scattering properties.
Griffiths, Hugh, Griffiths, H, Palama, Riccardo, Watson, F, Francis Watson, Watson, Francis; id_orcid, Riccardo Palama, Palama, R, Hugh Griffiths   +8 more
core   +1 more source

WAVEFORM DESIGN WITH POLYNOMIAL PHASE IN MODERN RADAR SYSTEMS [PDF]

This research examines radar waveform design, interference mitigation, and performance optimization in modern radar systems, with a focus on multi-sensor setups and dynamic target detection.
AMAR, Robin
core   +1 more source

Fundamental aspects of netted radar performance [PDF]

, 2010
Netted radar employs several spatially distributed transmitters and receivers for information retrieval. This system topology offers many advantages over traditional monostatic and bistatic systems which use a single transmitter and a single receiver ...
Teng, Y.
core  

A Detection and Cover Integrated Waveform Design Method with Good Correlation Characteristics and Doppler Tolerance

Remote Sensing
With the increasing complexity of the electromagnetic environment, radar waveform design needs to break through the limitation of traditional single-function architectures, prompting the emergence of integrated radar waveforms.
Haoting Guo, Fulai Wang, Nanjun Li, Zezhou Wu, Chen Pang, Lei Zhang, Yongzhen Li   +6 more
doaj   +1 more source

Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM

IEEE Access
In the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao, Baiyang Cai, Meng Xia, Lichao Yang   +3 more
doaj   +1 more source

An Orthogonal Waveform Scheme for Imaging MIMO-Radar Applications [PDF]

, 2013
Synthetic Aperture Radar (SAR) based on Digital Beamforming (DBF) belongs to the family of Multi-Modal Radar Systems (MMRSs) which offer higher operational flexibility and improved performance compared to conventional radar systems using analog beam ...
Patyuchenko, Anton, Laskowski, Piotr, Younis, Marwan, Krieger, Gerhard, Rommel, Tobias   +4 more
core