Results 31 to 40 of about 547 (145)
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
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A Neural Network Approach for Waveform Generation and Selection with Multi-Mission Radar [PDF]
, 2019 Nonlinear frequency modulated (NLFM) pulse compression waveforms have become a mainstream methodology for radars across multiple sectors and missions, including weather observation, target tracking, and target detection.
Cheong, Boon Leng +3 more
core +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
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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
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CABE : a cloud-based acoustic beamforming emulator for FPGA-based sound source localization [PDF]
, 2019 Microphone arrays are gaining in popularity thanks to the availability of low-cost microphones. Applications including sonar, binaural hearing aid devices, acoustic indoor localization techniques and speech recognition are proposed by several research ...
Braeken, An +6 more
core +2 more sources
Sequence Design to Minimize the Weighted Integrated and Peak Sidelobe Levels
, 2015 Sequences with low aperiodic autocorrelation sidelobes are well known to have extensive applications in active sensing and communication systems. In this paper, we consider the problem of minimizing the weighted integrated sidelobe level (WISL), which ...
Babu, Prabhu +2 more
core +2 more sources
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
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