Results 21 to 30 of about 122 (113)
Range sidelobe suppression for OFDM-integrated radar and communication signal
The Journal of Engineering, 2019 To improve the RadCom system of performing both data transmission and radar-sensing functions, here a waveform design method for orthogonal frequency division multiplexing (OFDM) signal is proposed to solve the problem of high range sidelobe level in ...
Jiajun Zuo +3 more
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International Journal of Antennas and Propagation, 2020 A new strategy of density tapering called the partial density tapering (PDT) accompanied with the algorithm of differential evolution (DE) is proposed to suppress the peak sidelobe level (PSL) of uniform excited concentric ring arrays (UECRA) with ...
Xin-Kuan Wang +3 more
doaj +1 more source
Waveform Design using Second Order Cone Programming in Radar Systems [PDF]
AUT Journal of Electrical Engineering, 2019 Transmit waveform design is one of the most important problems in active sensing and communication systems. This problem, due to the complexity and non-convexity, has been always the main topic of many papers for the decades.
M. Bagher Alaie, Seyed Ahmad Olamaei
doaj +1 more source
Remote Sensing, 2021 The multivariate range function of the high-speed maneuvering target induces modulations on both the envelop and phase, i.e., the range cell migration (RCM) and Doppler frequency migration (DFM) which degrade the long-time coherent integration used for ...
Jibin Zheng +4 more
doaj +1 more source
An Improved Peak Sidelobe Reduction Method for Subarrayed Beam Scanning
International Journal of Antennas and Propagation, 2015 This paper focused on PSL (peak sidelobe level) reduction for subarrayed beam scanning in phased array radars. The desired GSP (Gaussian Subarray Patterns) are achieved by creating a subarray weighting network.
Hang Hu +5 more
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A Sibelobe Suppressing Beamformer for Coherent Plane Wave Compounding
Applied Sciences, 2016 Contrast degradation is a critical problem in ultrasound plane wave imaging (PWI) resulting from signals leakage from the sidelobes. An ideal sidelobe reduction method may enhance the contrast without remarkably increasing computational load. To this end,
Wei Guo, Yuanyuan Wang, Jinhua Yu
doaj +1 more source
A CMOS SoC for Wireless Ultrasonic Power/Data Transfer and SHM Measurements on Structures
IEEE Access, 2022 This paper describes a highly-integrated CMOS system-on-chip (SoC) for active structural health monitoring (SHM). The chip integrates ultrasonic power and bidirectional half-duplex data transfer, a power management unit (PMU), and an ultrasound ...
Xinyao Tang +2 more
doaj +1 more source
ICT ExpressOFDM-based cognitive radio networks suffer from high sidelobe emissions, leading to adjacent interference and potential security vulnerabilities. This paper introduces a Whale Optimization Algorithm (WOA)-based cancellation carrier (CC) approach for ...
Atif Elahi +4 more
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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
Array Pattern Synthesis Using a Digital Position Shift Method [PDF]
Radioengineering, 2016 Considering all possible steering directions for beam scanning, a digital position shift method (DPSM) is presented to minimize the Peak Sidelobe Level (PSL) by searching the best position solution for every sensor and calculating the pattern with ...
C. Han, L. Wang
doaj