Results 41 to 50 of about 547 (145)
, 2016 In radio interferometry, observed visibilities are intrinsically sampled at some interval in time and frequency. Modern interferometers are capable of producing data at very high time and frequency resolution; practical limits on storage and computation ...
Atemkeng, M. T. +4 more
core +2 more sources
Ambiguity Function Optimization Based on Joint Communication and Sensing Waveform
Electronics Letters, Volume 62, Issue 1, January/December 2026.The sidelobe suppression strategy proposed in this study demonstrates significant advantages. Its ability to effectively reduce ambiguity function sidelobes has important practical significance for engineering. ABSTRACT The ambiguity function (AF) plays a critical role in joint communication and sensing (JCAS) systems. In this letter, we design a novel
Zheming Guo, Baixiao Chen
wiley +1 more source
An Efficient LSEF‐Based Algorithm for Binary Phase‐Coded MIMO Radar Waveform Design
Electronics Letters, Volume 61, Issue 1, January/December 2025.An efficient log‐sum‐exp‐function‐based algorithm for binary phase‐coded sequence design achieves competitive peak sidelobe level performance with reduced computational complexity in both single‐ and multi‐waveform scenarios. ABSTRACT This letter presents an efficient algorithm for designing binary phase‐coded sequences with low peak sidelobe level ...
Jiahui Cao +5 more
wiley +1 more source
Design of Integrated Waveform for Detection and Cover Based on Maximum Value Constraint
Electronics Letters, Volume 61, Issue 1, January/December 2025.This paper proposes a method for designing integrated waveform with excellent autocorrelation and interference properties. The generated waveform not only achieves a low peak sidelobe level but also introduces controllable false targets to deceive non‐cooperative radars.
Haoting Guo +6 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.In this paper, we propose the BSUM‐MM algorithm to design spectrally compatible waveforms for MIMO radar systems with low sidelobes. Numerical experiments demonstrate that our algorithm outperforms similar methods in terms of both ACWISL and computational efficiency. ABSTRACT Low‐correlation sidelobes are critical for spectrally compatible waveforms in
Zhaobo Jia, Lei Yu, Yinsheng Wei
wiley +1 more source
Do the Barker Codes End? [PDF]
, 2008 A Barker code is a binary code with k^th autocorrelation
Altalli, R. +17 more
core
IET Signal Processing, Volume 2025, Issue 1, 2025.Today, modern radar systems increase their target detection capabilities by processing pulses coherently. If these radars do not take precautions against the Doppler frequency shift caused by the moving target, their performance will decrease. In addition, if these radars do not change their parameters from pulse to pulse, modern jammers will cause ...
Alper Yildirim +2 more
wiley +1 more source
Convolution of Barker and Golay Codes for Low Voltage Ultrasonic Testing
Technologies, 2019 Ultrasonic Testing (UT) is one of the most important technologies in Non-Detective Testing (NDT) methods. Recently, Barker code and Golay code pairs as coded excitation signals have been applied in ultrasound imaging system with improved quality. However,
Zeng Fan +3 more
doaj +1 more source
Optimum Radar Signal for Production Zone Monitoring of the Oil Well
Journal of Sensors, Volume 2025, Issue 1, 2025.A primary challenge in radar‐based oil well monitoring is designing an optimized transmitter signal to identify perforations in the production zone. Effective signal design depends on signal‐to‐noise ratio (SNR) and range resolution, based on the frequency response of the well, to accurately detect perforations in the oil well.
Sajjad Kaveh +4 more
wiley +1 more source
International Journal for Numerical Methods in Biomedical Engineering, Volume 40, Issue 12, December 2024.The study explores pulse compression technique to enhance the performance of magneto‐acousto‐electrical tomography (MAET) with magnetic field measurements, utilizing a linear phased array transducer and numerical breast models with tumor inclusion. It provides feasibility and a comparative analysis of linear frequency modulated (LFM), Barker code, and ...
Mehmet Soner Gözü +1 more
wiley +1 more source