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Given devices space $D$, an intensity measure $\lambda m\in(0,\infty)$, a transition kernel $Q$ from the space $D$ to positive real numbers $(0,\infty,$ a path-loss function (which depends on the Euclidean distance between the devices and a…

信息论 · 计算机科学 2020-05-14 E. Sakyi-Yeboah , L. Asiedu , Kwabena Doku-Amponsah

The Internal Linear Combination (ILC) method is commonly employed to extract the cosmic microwave background (CMB) signal from multi-frequency observation maps. However, the performance of the ILC method tends to degrade when the…

宇宙学与河外天体物理 · 物理学 2024-05-31 Zirui Zhang , Yang Liu , Si-Yu Li , Haifeng Li , Hong Li

In the present paper, a simplified two-dimensional magnetic recording (TDMR) channel model is proposed in order to capture the qualitative features of writing and read-back processes of TDMR systems.The proposed channel model incorporates…

信息论 · 计算机科学 2015-04-01 Tadashi Wadayama

In this paper, we study the joint detection and angle estimation problem for beamspace multiple-input multiple-output (MIMO) systems with multiple random jamming targets. An iterative low-complexity generalized likelihood ratio test (GLRT)…

信号处理 · 电气工程与系统科学 2025-01-10 Pengguang Du , Cheng Zhang , Changwei Zhang , Zhilei Zhang , Yongming Huang

Infrared small target detection plays an important role in the remote sensing fields. Therefore, many detection algorithms have been proposed, in which the infrared patch-tensor (IPT) model has become a mainstream tool due to its excellent…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Guiyu Zhang , Qunbo Lv , Zui Tao , Baoyu Zhu , Zheng Tan , Yuan Ma

We employ the one-dimensional Fourier representation (1DFR) to analyze the 3-year WMAP de-biased internal linear combination (DILC) map and its possible contamination by galactic foregrounds. The 1DFR is a representation of the spherical…

天体物理学 · 物理学 2010-10-27 Lung-Yih Chiang , Peter Coles , Pavel D Naselsky , Poul Olesen

Soft demodulation of received symbols into bit log-likelihood ratios (LLRs) is at the very heart of multiple-input-multiple-output (MIMO) detection. However, the optimal maximum a posteriori (MAP) detector is complicated and infeasible to…

信号处理 · 电气工程与系统科学 2022-08-18 Jiankun Zhang , Hao Wang , Jing Qian , Zhenxing Gao

As a typical example of bandwidth-efficient techniques, bit-interleaved coded modulation with iterative decoding (BICM-ID) provides desirable spectral efficiencies in various wireless communication scenarios. In this paper, we carry out a…

信息论 · 计算机科学 2019-11-07 Zhaojie Yang , Yi Fang , Guohua Zhang , Francis C. M. Lau , Shahid Mumtaz , Daniel B. da Costa

The magnetic diagnostics subsystem of the LISA Technology Package (LTP) on board the LISA PathFinder (LPF) spacecraft includes a set of four tri-axial fluxgate magnetometers, intended to measure with high precision the magnetic field at…

广义相对论与量子宇宙学 · 物理学 2015-05-14 M Diaz-Aguilo , E Garcia-Berro , A Lobo

In orthogonal frequency-division multiplexing (OFDM) systems operating over rapidly time-varying channels, the orthogonality between subcarriers is destroyed leading to inter-carrier interference (ICI) and resulting in an irreducible error…

信息论 · 计算机科学 2009-11-03 Erdal Panayirci , Hakan Dogan , H. Vincent Poor

We propose an improved discriminative model prediction method for robust long-term tracking based on a pre-trained short-term tracker. The baseline pre-trained short-term tracker is SuperDiMP which combines the bounding-box regressor of…

计算机视觉与模式识别 · 计算机科学 2020-08-26 Seokeon Choi , Junhyun Lee , Yunsung Lee , Alexander Hauptmann

Laser frequency noise (LFN) is the dominant source of noise expected in the Laser Interferometer Space Antenna (LISA) mission, at $\sim$7 orders of magnitude greater than the typical signal expected from gravitational waves (GWs).…

广义相对论与量子宇宙学 · 物理学 2021-10-13 Jessica Page , Tyson Littenberg

This paper addresses the adaptive radar target detection problem in the presence of Gaussian interference with unknown statistical properties. To this end, the problem is first formulated as a binary hypothesis test, and then we derive a…

信号处理 · 电气工程与系统科学 2025-03-05 Chaoran Yin , Tianqi Wang , Linjie Yan , Chengpeng Hao , Alfonso Farina , Danilo Orlando

Laser Interferometer Space Antenna LISA represents the next frontier in gravitationalwave GW astronomy targeting the detection of millihertz gravitational signals Central to LISAs operation is the nanosecondprecision estimation of the light…

广义相对论与量子宇宙学 · 物理学 2025-07-28 Jean-Baptiste Bayle , Martin Staab , Samuel P. Francis , Emily Rose Rees , Robert Spero , Gerhard Heinzel

Channel and frequency offset estimation is a classic topic with a large body of prior work using mainly maximum likelihood (ML) approach together with Cram\'er-Rao Lower bounds (CRLB) analysis. We provide the maximum a posteriori (MAP)…

信号处理 · 电气工程与系统科学 2019-05-13 Mingda Zhou , Zhe Feng , Xinming Huang , Youjian , Liu

The BCJR algorithm is renowned for its optimal equalization, minimizing bit error rate (BER) over intersymbol interference (ISI) channels. However, its complexity grows exponentially with the channel memory, posing a significant…

信号处理 · 电气工程与系统科学 2025-03-14 Vadim Rozenfeld , Dan Raphaeli , Oded Bialer

In this paper, iterative differential phase-shift keying (DPSK) demodulation and channel decoding scheme is investigated for the Joint Channel decoding and physical layer Network Coding (JCNC) approach in two-way relaying systems. The Bahl,…

信息论 · 计算机科学 2013-02-12 Weijun Zeng , Xiaofu Wu , Zhen Yang

Map-making presents a significant computational challenge to the next generation of kilopixel CMB polarisation experiments. Years worth of time ordered data (TOD) from thousands of detectors will need to be compressed into maps of the T, Q…

天体物理学 · 物理学 2009-02-16 D. Sutton , B. R. Johnson , M. L. Brown , P. Cabella , P. G. Ferreira , K. M. Smith

The Local Binary Patterns (LBP) is a local descriptor proposed by Ojala et al to discriminate texture due to its discriminative power. However, the LBP is sensitive to noise and illumination changes. Consequently, several extensions to the…

计算机视觉与模式识别 · 计算机科学 2018-10-30 Yasin Musa Ayami , Aboubayda Shabat , Delene Heukelman

Spectropolarimetric measurements at moderate spectral resolutions are effective tracers of stellar magnetic fields and circumstellar environments when signal to noise ratios (SNRs) above 2000 can be achieved. The LRISp spectropolarimeter is…

天体物理仪器与方法 · 物理学 2015-09-16 David M. Harrington , Svetlana V. Berdyugina , Oleksii Kuzmychov , Jeffrey R. Kuhn