Hyper-efficient model-independent Bayesian method for the analysis of pulsar timing data [PDF]
, 2013 A new model independent method is presented for the analysis of pulsar timing data and the estimation of the spectral properties of an isotropic gravitational wave background (GWB).
Alexander, Paul +6 more
core +2 more sources
DOA estimation method of spatial spectrum product for distributed coprime linear array
Xibei Gongye Daxue Xuebao, 2021 Coprime array isAsparse array composed of two uniform linear arrays with different spacing. When the two subarrays are inAnon-coherent distributed configuration, the direction of arrival (DOA) method based on the covariance analysis of the complete ...
WANG Na +3 more
doaj +1 more source
Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal
Tongxin xuebao, 2022 To solve the problems of poor stability, low resolution, and performance degradation under low signal-to-noise ratio (SNR) of the direction of arrival (DoA) estimation, a space-time division cluster (STDC) DoA estimation algorithm was proposed for under ...
Feng ZHOU, Baosheng ZHANG, Wenbo ZHANG
doaj +2 more sources
Blind equalization of DS-CDMA and MC-CDMA modulations in time-variant frequency selective channels [PDF]
, 1999 The paper addresses the blind equalization problem of spread spectrum modulations in the presence of fast time-variant frequency-selective channels. The basic assumption of the paper is that the channel response exhibits fast changes.
Rey Micolau, Francesc +1 more
core +1 more source
Orthogonal Spatial Domain Subspace Projection Based Time-Varying Channel Estimation
IEEE Access, 2020 Time-varying channel estimation is a well-known challenge for the wireless communications in the high mobility environments. In this paper, we propose a basis expansion model (BEM) based channel estimation algorithm utilizing orthogonal spatial domain ...
Rong Zeng, Qiang Huang, Hao Wang
doaj +1 more source
The Effect of Spatial Averaging on Spectrum Estimation [PDF]
Journal of Applied Meteorology, 1968 Abstract The effect of instrument baseline averaging on the estimated spectrum density of a homogeneous random field of a scalar variable in turbulent flow is investigated. The spectrum transfer function of the spatial filter is evaluated for all orientations of the baseline to the vector mean wind.
openaire +1 more source
Joint Channel Estimation and Pilot Allocation in Underlay Cognitive MISO Networks [PDF]
, 2014 Cognitive radios have been proposed as agile technologies to boost the spectrum utilization. This paper tackles the problem of channel estimation and its impact on downlink transmissions in an underlay cognitive radio scenario.
Alodeh, Maha +2 more
core +2 more sources
Robust direction-of-arrival estimation based on sparse asymptotic minimum variance
The Journal of Engineering, 2019 This study proposes a direction-of-arrival (DOA) estimation algorithm named robust sparse asymptotic minimum variance (RSAMV) to solve the current DOA algorithms' problems, such as the difficulty in weak target estimation, low resolution and the ...
Xiangyu Zhang, Jun Sun, Xingrong Cao
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Accurate estimation of the clutter covariance matrix for the cell under test (CUT) is a committed step in the spatial-temporal adaptive processing (STAP) algorithm.
Tianfu Zhang +5 more
doaj +1 more source
Spatial Power Spectrum Estimation Using The Pisarenko Framework
, 2008 Publication in the conference proceedings of EUSIPCO, Lausanne, Switzerland ...
Li, Jian, Stoica, Petre, Tan, Xing
openaire +1 more source