Results 21 to 30 of about 1,440 (199)
Dealing with co‐channel interference in multi‐channel airborne passive radar
IET Radar, Sonar &Navigation, Volume 15, Issue 1, Page 85-100, January 2021., 2021 Abstract We address the problem of co‐channel interference (CCI) in multi‐channel airborne passive radars using digital broadcast signals of opportunity. A framework for suppressing the CCI is proposed, based on a two‐stage approach, which reflects the range–Doppler map being a function of both a reference and a surveillance signal. In the first stage,
Diego Cristallini +4 more
wiley +1 more source
Multiperson Interactive Activity Recognition Based on Interaction Relation Model
Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021 Multiperson activity recognition is a pivotal branch as well as a challenging topic of human action recognition research. This paper adopts a hybrid learning model to the spatio‐temporal relationship and occlusion relationship among multiple people.
Hongbin Tu +4 more
wiley +1 more source
A Study on the Range Equation Modeling for Multichannel Medium-Earth-Orbit SAR-GMTI Systems
Remote Sensing, 2021 This paper studies the range equation modeling of a ground moving target for multichannel medium-Earth-orbit (MEO) synthetic aperture radar (SAR) ground moving target indication (GMTI), an issue which is challenging to tackle due to the non-linear motion
Yongkang Li +3 more
doaj +1 more source
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 With high‐precision DEM (Digital Elevation Model) and GMTI (Ground Moving Target Indicator) as the demand background, the influence of J2 zonal harmonic term perturbation on the relative motion of the millimeter‐level short‐range leader‐follower satellites in near‐circular orbit is studied through the relative perturbation method. An equation of motion
Jingji Wang, Chunyang Liu, Yue Wang
wiley +1 more source
Knowledge-Aided Multichannel Adaptive SAR/GMTI Processing: Algorithm and Experimental Results
EURASIP Journal on Advances in Signal Processing, 2010 The multichannel synthetic aperture radar ground moving target indication (SAR/GMTI) technique is a simplified implementation of space-time adaptive processing (STAP), which has been proved to be feasible in the past decades.
Di Wu, Daiyin Zhu, Zhaoda Zhu
doaj +2 more sources
Complexity, Volume 2021, Issue 1, 2021., 2021 This paper presents a theoretical framework of the circular shift network coding system through the study of nonmultiple clustered interval music performance style conversion and the analysis of music conversion by using circular shift topology, and a series of basic research results of circular shift network coding is obtained under this framework. It
Xiuqin Wang +3 more
wiley +1 more source
A generalization of DPCA processing for multichannel SAR/GMTI radars
, 2022 S.560-572This paper generalizes the well-known displaced-phase-center antenna (DPCA) method for efficient ground moving target indication (GMTI) with a two-channel synthetic aperture radar (SAR) to any multichannel SAR/GMTI radars independent of the ...
Cerutti-Maori, D., Sikaneta, I.
core +1 more source
Multi-Channel SAR System Design for HRWS and GMTI in Low PRF
IEEE Access, 2020 High-resolution and wide-swath (HRWS) is an important challenge in synthetic aperture radar (SAR). Combined SAR with array, the azimuth dual-channel SAR configuration achieves high azimuth resolution and HRWS in low Pulse repetition frequency (PRF) by ...
Xuepan Zhang +3 more
doaj +1 more source
MIMO Radar Waveform Constraints for GMTI [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2010 Ground moving-target indication (GMTI) provides both an opportunity and challenge for coherent multiple-input multiple-output (MIMO) radar. MIMO techniques can improve a radar's angle estimation and the minimum detectable velocity (MDV) for a target. However, the challenge of clutter mitigation places significant constraints on MIMO radar waveforms. In
Forsythe, Keith W. +1 more
openaire +3 more sources
Impact of PRF design on GMTI performance of MIMO-SAR for hypersonic platform with curved trajectory
The Journal of Engineering, 2019 Compared with the conventional single-channel sampling or azimuth multichannel sampling of SAR system, the multiple-input multiple-output (MIMO) sampling has the potential to realise the high-resolution wide swath (HRWS) imaging and the ground moving ...
Rui Zhou +3 more
doaj +1 more source