Suchergebnisse - delay/Doppler-spread function~

Non-Stationary 3D M2M Channel Modeling and Verification With Aircraft-to-Aircraft, Drone-to-Drone, Vehicle-to-Vehicle, and Ship-to-Ship Measurements von Bellido-Manganell, Miguel A., Walter, Michael

“… Mobile-to-mobile (M2M) propagation channels have gained significant attention over the last years with the development of advanced communication systems for …”
Volltext

Estimation of Rapidly Time-Varying Sparse Channels von Weichang Li, Preisig, J.C.

“… , and the Dopplers of each arrival all change dynamically. A sparse channel estimation technique is developed based on the delay-Doppler-spread function representation of the channel …”
Volltext

Estimation of Overspread Underwater Acoustic Channel Based on Low-Rank Matrix Recovery von Li, Jie, Chen, Fangjiong, Liu, Songzuo, Yu, Hua, Ji, Fei

“… ) channels of strong dispersion is considered. We show that although the UWA channel dispersion causes the degeneration of channel sparsity, it leads to a low-rank structure especially when the channel delay-Doppler-spread function is separable …”
Volltext

Identification and matching of sparse Delay-Doppler Spread Functions from high-frequency communications signals von Zamanizadeh, E, Gomes, João, Bioucas-Dias, José M

“… We view underwater channels as time-varying linear systems and characterize them by their Delay-Doppler Spread Functions (DDSF …”
Volltext

Tracking channel variations in a time-varying doubly-spread underwater acoustic channel von Huang, S. H., Yang, T. C., Xu, W.

“… Channel impulse responses (CIRs) are estimated for a doubly-spread acoustic channel in this paper by (1) estimating explicitly the path-dependent Doppler …”
Volltext

On Sparse Bayesian Spreading Function Estimation Based Iterative Detection in Multiple-Input Multiple-Output Underwater Acoustic Communications von Qin, Xiangzhao, Qu, Fengzhong, Wu, Yezhou, Ma, Dongfang

“… Delay-Doppler-spread function based sparse channel estimation approach is proposed. The dominant components on the delay-Doppler plane are identified using the sparse Bayesian learning (SBL …”
Volltext

Interpreting the Underwater Acoustic Channel Impulse Response and Doppler Spread Using Braid Representations von Kemerling, Madison, Sen Gupta, Ananya

“… Specifically, we explore four different variables: water depth, channel range, spreading factor, and number of multipath arrivals, while following the variations shown on delay-doppler spread function …”
Volltext

Probing the Time-Evolution of the Sub-THz Radio Channel at 160 GHz for Communication and Sensing von Keusgen, Wilhelm, Eichler, Taro

“… Further statistical parameters like path loss, delay spread, Doppler spread, and the Ricean K-factor are derived from the system functions …”
Volltext

Fast estimation of sparse doubly spread acoustic channels von Zeng, Wen-Jun, Xu, Wen

“… ) that can handle complex-valued data for estimating the delay-Doppler spread function of a time-varying channel …”
Weitere Angaben

A geometric mixed norm approach to shallow water acoustic channel estimation and tracking von Sen Gupta, Ananya, Preisig, James

“… complex function based on the L2 estimation error. Our mixed norm formulation is mathematically equivalent to conventional L2 constrained L1 minimization …”
Volltext

In Situ Performance Prediction of a Coherent Acoustic Modem in a Reverberant Environment von van Walree, Paul A., Colin, Mathieu E. G. D.

“… Measured power-delay profiles and delay-Doppler spread functions are used to predict receiver output signal-to-noise ratio (SNR …”
Volltext

Sparse Underwater Acoustic Channel Parameter Estimation Using a Wideband Receiver Array von Byun, Sung-Hoon, Seong, Woojae, Kim, Sea-Moon

“… Multichannel signals from a receiver array are modeled to obtain additional sparsity in the incidence angle and the angle-delay-Doppler-spread function is defined to parameterize the channel …”
Volltext

Adaptive robust Max-SLNR precoder for MU-MIMO-OFDM systems with imperfect CSI von Shu, Feng, Tong, Juanjuan, You, Xiaohu, Gu, Chen, Wu, Jiajun

“… In this paper, the coefficient of CSI error needed to adapt to fading channels is modeled as a function of Doppler spread, CSI delay, and signal-to-noise ratio（SNR …”
Volltext

Estimation and Equalization of Rapidly Varying Sparse Acoustic Communication Channels von Weichang Li, Preisig, J.C.

“… To address both the rapid channel fluctuations and the channel sparse structure, the delay-Doppler-spread function representation of the channel is adopted …”
Volltext

An Adaptive MP Algorithm for Underwater Acoustic Channel Estimation Based on Compressed Sensing von Mu, Shaopeng, Gao, Wengen, Li, Yunfei, Jiang, Ling, Pan, Mengxing, Xu, Hanwen

“… To address this issue, this paper introduces a delay-Doppler spread function (DDSF) to account for the effect of ICI and proposes a new compressed sensing (CS …”
Volltext

Joint Estimation of Carrier Frequency Offset and Channel Impulse Response for Linear Periodic Channels von Shaked, Roee, Shlezinger, Nir, Dabora, Ron

“… When the coefficients of the delay-Doppler spread function of the CIR are approximately sparse, we propose two estimation …”
Volltext

Wavefront segmentation and classification for model-based underwater high-frequency tomography von Zamanizadeh, E., Gomes, J., Bioucas-Dias, J. M.

“… The problem of inferring side information regarding an underwater acoustic (UWA) channel from the environmental signature imprinted on waveforms by the …”
Volltext

Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information von Wang, Jin, Shu, Feng, Chen, Ri-qing, Cui, Yu-di, Chen, Yu, Li, Jun

“… The coefficient of the Gaussian-Markov CSI error model is modeled as a function of CSI delay, Doppler spread, and signal-to-noise ratio, and can be estimated in real time …”
Volltext

Adaptive robust beamformer for multi-pair two-way relay networks with imperfect channel state information von Jin WANG Feng SHU Ri-qing CHEN Yu-di CUI Yu CHEN Jun LI

“… The coefficient of the Gaussian-Markov CSI error model is modeled as a function of CSI delay, Doppler spread, and signal-to-noise ratio, and can be estimated in real time …”
Volltext

Doppler compensation in underwater channels using time-reversal arrays von Gomes, J., Barroso, V.

“… to differential Doppler. The proposed technique for Doppler compensation builds on the representation of time-varying pulse shapes using delay-Doppler spread functions. By inverting these functions in both delay and Doppler at each transducer, the mirror is able to project signals that converge on the source and are devoid of Doppler shifts when observed in its moving reference frame …”
Volltext