Zobrazeno 1 - 10
of 2 645
pro vyhledávání: '"Sparse recovery"'
Publikováno v:
Leida xuebao, Vol 13, Iss 4, Pp 917-928 (2024)
In practical settings, the efficacy of Space-Time Adaptive Processing (STAP) algorithms relies on acquiring sufficient Independent Identically Distributed (IID) samples. However, sparse recovery STAP method encounters challenges like model parameter
Externí odkaz:
https://doaj.org/article/2bc244147fa94c208651a5f233ec9492
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 46-67 (2024)
With the growing demand for radar target detection, Sparse Recovery (SR) technology based on the Compressive Sensing (CS) model has been widely used in radar signal processing. This paper first outlines the fundamental theory of SR and then introduce
Externí odkaz:
https://doaj.org/article/368b96a10ad1464c93247e0e0d4c4c7a
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 200-214 (2024)
Random Stepped Frequency (RSF) radars can achieve high-range resolution with relatively low hardware complexity by synthesizing a wide bandwidth. Moreover, because of the random frequency agility of each pulse, the radars possess robust anti-interfer
Externí odkaz:
https://doaj.org/article/7da9df65a59740e198d2b6eb086a0129
Publikováno v:
Sensors, Vol 24, Iss 19, p 6418 (2024)
Compressed Sensing SAR Imaging is based on an accurate observation matrix. As the observed scene enlarges, the resource consumption of the method increases exponentially. In this paper, we propose a weighted ℓ2/3-norm regularization SAR imaging met
Externí odkaz:
https://doaj.org/article/1c20e9756c0345c1b00bd857230a77e5
Publikováno v:
Remote Sensing, Vol 16, Iss 14, p 2534 (2024)
The traditional sparse recovery (SR) space-time adaptive processing (STAP) algorithms are greatly affected by grid mismatch, leading to poor performance in airborne bistatic radar clutter suppression. In order to address this issue, this paper propos
Externí odkaz:
https://doaj.org/article/ed56b8e9e52c48caa6a5a5363275742f
Publikováno v:
Remote Sensing, Vol 16, Iss 13, p 2294 (2024)
In the passive bistatic radar (PBR) system, methods exist to address the issue of detecting weak targets without being influenced by non-ideal factors from adjacent strong targets. These methods utilize the sparsity in the delay-Doppler domain of the
Externí odkaz:
https://doaj.org/article/fd776d3fa7b44b28a248c43d817c3a07
Publikováno v:
Remote Sensing, Vol 16, Iss 13, p 2325 (2024)
The integrated detection and jamming system employs integrated signals devoid of typical radar signal characteristics for detection and jamming. This allows for the sharing of resources such as waveform, frequency, time, and aperture, significantly e
Externí odkaz:
https://doaj.org/article/f7e4e9ef90304790bc5bdd233dd8fe30
Publikováno v:
Sensors, Vol 24, Iss 10, p 3095 (2024)
In synthetic aperture radar (SAR) signal processing, compared with the raw data of level-0, level-1 SAR images are more readily accessible and available in larger quantities. However, an amount of level-1 images are affected by radio frequency interf
Externí odkaz:
https://doaj.org/article/a715c9f9793e4a60ae26f6090b688c77
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1388 (2024)
Space–time adaptive processing (STAP) is an effective technology in clutter suppression and moving target detection for airborne radar. When working in the heterogeneous environment, the number of training samples that satisfy independent and ident
Externí odkaz:
https://doaj.org/article/a06bb76514f34ce8b95e803c51388f38
Publikováno v:
Intelligent and Converged Networks, Vol 4, Iss 1, Pp 1-14 (2023)
It has always been difficult to achieve accurate information of the channel for underwater acoustic communications because of the severe underwater propagation conditions, including frequency-selective property, high relative mobility, long propagati
Externí odkaz:
https://doaj.org/article/ba439408291748e9906b62846c3f996e