中文
相关论文

相关论文: Synthesis of Wide-Angle Scanning Arrays through Ar…

200 篇论文

Gene expression is a complex phenomenon involving numerous interlinked variables, and studying these variables to control expression is essential in bioengineering and biomanufacturing. While cloning techniques for achieving plasmid…

定量方法 · 定量生物学 2025-01-30 Khushank Singhal , Harry Adamson , Thomas Baer , Howard Salis , Melik Demirel

Cosmic shear tomography has emerged as one of the most promising tools to both investigate the nature of dark energy and discriminate between General Relativity and modified gravity theories. In order to successfully achieve these goals,…

宇宙学与河外天体物理 · 物理学 2014-03-05 V. F. Cardone , M. Martinelli , E. Calabrese , S. Galli , Z. Huang , R. Maoli , A. Melchiorri , R. Scaramella

Controlling the in-band co-polarization scattering of the antenna while maintaining its radiation performance is crucial for the low observable platform. Thus, this paper studies the in-band co-polarization scattering beam scanning of…

应用物理 · 物理学 2023-09-27 Binchao Zhang , Fan Yang , Shenheng Xu , Maokun Li , Cheng Jin

Developing deep neural networks to generate 3D scenes is a fundamental problem in neural synthesis with immediate applications in architectural CAD, computer graphics, as well as in generating virtual robot training environments. This task…

计算机视觉与模式识别 · 计算机科学 2021-09-02 Haitao Yang , Zaiwei Zhang , Siming Yan , Haibin Huang , Chongyang Ma , Yi Zheng , Chandrajit Bajaj , Qixing Huang

Frequency modulated continuous wave (FMCW) radar is emerging as a trendy radar system for synthetic aperture radar (SAR). This letter proposes a novel method for the extraction of the SAR image with the FMCW radar. The proposed method can…

信号处理 · 电气工程与系统科学 2020-10-01 Junhyeong Park , Dae-Hwan Jung , Seong-Ook Park

We use convolutional neural networks to recover images optically down-sampled by $6.7\times$ using coherent aperture synthesis over a 16 camera array. Where conventional ptychography relies on scanning and oversampling, here we apply…

图像与视频处理 · 电气工程与系统科学 2022-02-09 Chengyu Wang , Minghao Hu , Yuzuru Takashima , Timothy J. Schulz , David J. Brady

In modern applications multi-sensor arrays are subject to an ever-present demand to accommodate signals with higher bandwidths. Standard methods for broadband beamforming, namely digital beamforming and true-time delay, are difficult and…

信号处理 · 电气工程与系统科学 2022-06-16 Coleman DeLude , Santhosh Karnik , Mark Davenport , Justin Romberg

With the ongoing emergence of smart and distributed grids, it becomes increasingly important to understand as well as improve legacy infrastructure while operating a much more interconnected and fragile architecture. To support this…

人机交互 · 计算机科学 2022-04-13 Maximilian T. Fischer , Daniel A. Keim

A new high time resolution observing mode for the Murchison Widefield Array (MWA) is described, enabling full polarimetric observations with up to 30.72 MHz of bandwidth and a time resolution of ~0.8 $\mu$s. This mode makes use of a…

天体物理仪器与方法 · 物理学 2020-08-26 S. J. McSweeney , S. M. Ord , N. D. R. Bhat , B. W. Meyers , S. E. Tremblay , J. Jones , B. Crosse , K. R. Smith

Synthetic aperture radar (SAR) is a day or night any-weather imaging modality that is an important tool in remote sensing. Most existing SAR image formation methods result in a maximum a posteriori image which approximates the reflectivity…

应用统计 · 统计学 2020-07-14 Victor Churchill , Anne Gelb

Multi-channel acoustic signal processing is a well-established and powerful tool to exploit the spatial diversity between a target signal and non-target or noise sources for signal enhancement. However, the textbook solutions for optimal…

音频与语音处理 · 电气工程与系统科学 2025-01-14 Reinhold Haeb-Umbach , Tomohiro Nakatani , Marc Delcroix , Christoph Boeddeker , Tsubasa Ochiai

Inspired by the filter-bank (FB) concept that is normally used for multi-rate signal processing, an FB-enabled array technique of leaky-wave antennas (LWAs) is proposed and studied for creating full-band-locked frequency-scanning radar…

应用物理 · 物理学 2024-10-28 Dongze Zheng , Ke Wu

We consider the problem of imaging extended reflectors in terminating waveguides. We form the image by back-propagating the array response matrix projected on the waveguide's non-evanescent modes. The projection is adequately defined for…

计算物理 · 物理学 2017-11-30 Chrysoula Tsogka , Dimitrios A. Mitsoudis , Symeon Papadimitropoulos

We study the problem of novel view synthesis from sparse source observations of a scene comprised of 3D objects. We propose a simple yet effective approach that is neither continuous nor implicit, challenging recent trends on view…

计算机视觉与模式识别 · 计算机科学 2021-12-10 Pengsheng Guo , Miguel Angel Bautista , Alex Colburn , Liang Yang , Daniel Ulbricht , Joshua M. Susskind , Qi Shan

Designing a new class of rectangular two-dimensional sparse array to enhance the signal resolving capabilities with a limited number of sensors has always been a challenge. We explore the non-uniformity of the sparse arrays to enhance the…

信号处理 · 电气工程与系统科学 2022-06-09 Kretika Goel , Monika Aggarwal , Subrat kar

Recently, a novel method based on coding partitions [1]-[4] has been used to derive power series expansions to previously intractable problems. In this method the coefficients at $k$ are determined by summing the contributions made by each…

组合数学 · 数学 2012-03-23 Victor Kowalenko

Beyond the scope of space-coding metasurfaces, space-time digital metasurfaces can substantially expand the application scope of digital metamaterials in which simultaneous manipulation of electromagnetic waves in both space and frequency…

应用物理 · 物理学 2020-10-28 Javad Shabanpour

Accurate channel parameter estimation is challenging for wideband millimeter-wave (mmWave) large-scale hybrid arrays, due to beam squint and much fewer radio frequency (RF) chains than antennas. This paper presents a novel joint delay and…

信息论 · 计算机科学 2021-02-23 Zhipeng Lin , Tiejun Lv , Wei Ni , J. Andrew Zhang , Jie Zeng , Ren Ping Liu

Researches in novel viewpoint synthesis majorly focus on interpolation from multi-view input images. In this paper, we focus on a more challenging and ill-posed problem that is to synthesize novel viewpoints from one single input image. To…

计算机视觉与模式识别 · 计算机科学 2017-11-20 Xiaodong Cun , Feng Xu , Chi-Man Pun , Hao Gao

Frequency diverse array (FDA) differs from conventional array techniques in that it imposes an additional frequency offset (FO) across the array elements. The use of FO provides the FDA with the controllable degree of freedom in range…

信号处理 · 电气工程与系统科学 2022-12-21 Wenkai Jia , Wen-Qin Wang , Shungsheng Zhang
‹ 上一页 1 8 9 10 下一页 ›