Results 11 to 20 of about 204,888 (292)

Constant Modulus Waveform Design with Block-Level Interference Exploitation for DFRC Systems [PDF]

open access: yesICC 2024 - IEEE International Conference on Communications, 2023
Dual-function radar-communication (DFRC) is a promising technology where radar and communication functions operate on the same spectrum and hardware.
Byunghyun Lee   +4 more
semanticscholar   +1 more source

Constant modulus shaped beam synthesis via linear fractional semidefinite relaxation

open access: yesIET Microwaves, Antennas & Propagation, 2022
Excitation amplitude control is a critical issue regarding the shaped beam synthesis of array antennas. Ideally, excitations can have the same amplitude, and the desired beam can be achieved only by changing the phases.
Xiuquan Dou, Mengkai Hu, Qifan Liu
doaj   +1 more source

New normalized constant modulus algorithms with relaxation [PDF]

open access: yesIEEE Signal Processing Letters, 1997
A new normalized constant modulus algorithm is proposed that has a more desirable error performance surface (EPS) than the existing constant modulus blind equalization algorithms. We show that for an autoregressive channel, a well-known class of undesirable local solutions (ULSs) does not exist.
Tanrikulu, O   +2 more
openaire   +3 more sources

Parallel Blind Adaptive Equalization of Improved Block Constant Modulus Algorithm With Decision-Directed Mode

open access: yesIEEE Access, 2023
To eliminate inter-symbol interferences (ISI) caused by nonlinear group delay effect in high-speed broadband satellite sensor networks, an efficient parallel adaptive blind equalization of improved block constant modulus algorithm (IBCMA) with decision ...
Ying Chen   +5 more
doaj   +1 more source

Constant-Modulus Waveform Design With Polarization-Adaptive Power Allocation in Polarimetric Radar

open access: yesIEEE Transactions on Signal Processing, 2023
In polarimetric radars, corresponding to the polarized antennas, exploiting waveform diversity along the polarization dimension becomes accessible. In this article, we aim to maximize the signal-to-interference plus noise ratio (SINR) of a polarimetric ...
Linlong Wu   +5 more
semanticscholar   +1 more source

Optimal Step-Size Constant Modulus Algorithm [PDF]

open access: yesIEEE Transactions on Communications, 2008
The step size leading to the absolute minimum of the constant modulus (CM) criterion along the search direction can be obtained algebraically at each iteration among the roots of a third-degree polynomial. The resulting optimal step-size CMA (OS-CMA) is compared with, other CM-based iterative techniques in terms of performance-versus-complexity trade ...
Vicente Zarzoso, Pierre Comon
openaire   +1 more source

Designing Sequence Set With Minimal Peak Side-Lobe Level for Applications in High Resolution RADAR Imaging

open access: yesIEEE Open Journal of Signal Processing, 2021
Constant-modulus sequence set with low peak side-lobe level is a necessity for enhancing the performance of modern active sensing systems like Multiple Input Multiple Output (MIMO) RADARs.
Surya Prakash Sankuru   +3 more
doaj   +1 more source

Blind time domain nonlinear compensator embedded in the constant modulus algorithm.

open access: yesOptics Express, 2019
In this paper, a blind nonlinear compensator is proposed for the compensation of fiber nonlinearity. The nonlinear compensator is embedded in the constant modulus algorithm (CMA) which consists of two stages.
Junhe Zhou, Yunwang Zhang
semanticscholar   +1 more source

Data-Independent Phase-Only Beamforming of FDA-MIMO Radar for Swarm Interference Suppression

open access: yesRemote Sensing, 2023
This paper proposes two data-independent phase-only beamforming algorithms for frequency diverse array multiple-input multiple-output radar against swarm interference.
Geng Chen   +4 more
doaj   +1 more source

Assessment of Different Channel Equalization Algorithms for a Converged OFDM-Based 5G mm-wave A-RoF System at 60 GHz

open access: yesApplied Sciences, 2022
In this article, we simulate a converged 5G mm-wave analogue radio-over-fiber (A-RoF) system at 60 GHz, and perform offline signal processing to equalize the dispersive optical link with the three most frequently employed algorithms, i.e., the simple ...
Umar Farooq, Amalia Miliou
doaj   +1 more source

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