Zobrazeno 1 - 10
of 1 920
pro vyhledávání: '"compressed sensing (CS)"'
Publikováno v:
Nanophotonics, Vol 13, Iss 24, Pp 4381-4396 (2024)
Direction of arrival (DoA) estimation is a key research focus in array signal processing, and numerous progressive direction-finding algorithms have already been developed. In terms of the development of algorithms, metasurfaces can help innovate tra
Externí odkaz:
https://doaj.org/article/323e4434c8e94d4ba2bc97785d3fdfad
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2024, Iss 1, Pp 1-23 (2024)
Abstract In this paper, we consider the graph signals are sparse in the graph Fourier domain and propose an iterative threshold compressed sensing reconstruction (ITCSR) algorithm to reconstruct sparse graph signals in the graph Fourier domain. The p
Externí odkaz:
https://doaj.org/article/3f4f157972bb4f5caac3eec7e3b28ac7
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 18870-18881 (2024)
Synthetic aperture radar tomography (TomoSAR) can acquire high resolution in height direction by forming a large synthetic aperture along the tomographic direction. Compressed sensing (CS) is widely utilized in TomoSAR imaging to reduce the costs of
Externí odkaz:
https://doaj.org/article/3caf7afe410f4ea09eb3c18ba1a750e1
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 18967-18986 (2024)
Conventional 3-D synthetic aperture radar (SAR) sparse imaging algorithms suffer from degradation in weakly sparse scenes due to their reliance on inherent sparsity. In addition, they are constrained by high computational complexity and parametric tu
Externí odkaz:
https://doaj.org/article/cb1be0aa02d54f1c9d8d4508524979ac
Publikováno v:
IEEE Access, Vol 12, Pp 144950-144964 (2024)
Terahertz (THz) communications is a new frontier for the sixth-generation wireless systems due to availability of large bandwidth that supports terabits per second data rates. However, THz signals experience significant attenuation over distance, res
Externí odkaz:
https://doaj.org/article/e8b72db4cd574b4d8a042252cfcbd03f
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-10 (2024)
Reconstructing high-quality images with few measurements has always been a primary goal for single-pixel imaging (SPI). Diffusion models have shown outstanding performance in image generation and have been effectively attempted in image reconstructio
Externí odkaz:
https://doaj.org/article/add6b4d0a3004e6ea80b6afe2a4ad4e5
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9945-9960 (2024)
Synthetic aperture radar tomography (TomoSAR) technology effectively mitigates issues such as severe layover in high-resolution synthetic aperture radar (SAR) urban imagery, presenting numerous applications in reconstructing complex 3-D urban scenes.
Externí odkaz:
https://doaj.org/article/e161558a5fa74bf8b0ccc6c83cb38c20
Publikováno v:
Leida xuebao, Vol 12, Iss 2, Pp 332-342 (2023)
Radar forward-looking imaging is important in many fields, such as precision guidance, autonomous landing, and terrain mapping. Due to the constraints of actual radar aperture, obtaining high-resolution images using the traditional forward-looking im
Externí odkaz:
https://doaj.org/article/e967e5b4f22b4c4183aa18d91b7de07f
Publikováno v:
Heliyon, Vol 9, Iss 12, Pp e22548- (2023)
The conventional approach for images encryption entails transforming a regular image into an encrypted image that resembles noise. However, this noise-like encrypted image is susceptible to drawing the attention of an attacker when transmitted throug
Externí odkaz:
https://doaj.org/article/73b9fd7a80b5401ca0662ec3ab4ab918
Publikováno v:
Tomography, Vol 9, Iss 2, Pp 693-705 (2023)
High Spectral and Spatial resolution (HiSS) MRI shows high diagnostic performance in the breast. Acceleration methods based on k-space undersampling could allow stronger T2*-based image contrast and/or higher spectral resolution, potentially increasi
Externí odkaz:
https://doaj.org/article/ecc4cde568bd44e980967ee60ee913b0