Results 21 to 30 of about 6,360,179 (406)
Coherent Random-Modulated Continuous-Wave LiDAR Based on Phase-Coded Subcarrier Modulation
Photonics, 2021 A coherent random-modulated continuous-wave (RMCW) LiDAR transmits a lightwave modulated by a pseudo-random binary sequence (PRBS). The lightwave backscattered from targets is received and used to reconstruct the PRBS.
Zhongyang Xu +5 more
doaj +1 more source
Compressive Sensing Radar Imaging With Convolutional Neural Networks
IEEE Access, 2020 In the area of radar imaging at any frequency band from microwave to optics, the technique of compressive sensing (CS) enables high resolution with reduced number of antenna elements and measurements.
Qiao Cheng +3 more
semanticscholar +1 more source
Microwave Photonic Array Radars
IEEE Journal of Microwaves, 2021 Phased array radars have remarkable advantages over radars with single-element antenna in terms of agility, flexibility, robustness, and reconfigurability.
Shilong Pan +3 more
doaj +1 more source
Passive Radar Imaging of Moving Targets Using WiFi Signals
Leida xuebao, 2015 In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng +3 more
doaj +1 more source
PhotoniX, 2023 There has been a rapidly growing demand for low-cost, integrated single-shot spectrometers to be embedded in portable intelligent devices. Even though significant progress has been made in this area, two major problems are still remaining, namely the ...
Ang Li +6 more
doaj +1 more source
Region-enhanced passive radar imaging [PDF]
, 2005 The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat +2 more
core +1 more source
Hyper-parameter selection in non-quadratic regularization-based radar image formation [PDF]
, 2008 We consider the problem of automatic parameter selection in regularization-based radar image formation techniques. It has previously been shown that non-quadratic regularization produces feature-enhanced radar images; can yield superresolution; is ...
Batu, Ozge +3 more
core +1 more source
Anti-Error Robust Pattern Synthesis Algorithm in Time-Modulated Array Antenna
IEEE Access, 2022 Compared with the traditional antenna array, the time-modulated array can increase the flexibility of the array by adding time switches. However, due to the introduction of time switches, the time-modulated array antenna is more sensitive to random ...
Yuanjin Tian +5 more
doaj +1 more source
Sequence Set Design for a New LFM-PC Hybrid Modulated Radar Signal
Sensors, 2021 In this paper we study the code design problem of a new form of linear frequency modulation phase-coded (LFM-PC) hybrid signal with wide Doppler tolerance based on a range-Doppler discrete ambiguity function (DAF) to get better detection performance and ...
Shiyi Li +3 more
doaj +1 more source
Enhanced Radar Imaging Using a Complex-Valued Convolutional Neural Network [PDF]
IEEE Geoscience and Remote Sensing Letters, 2017 Convolutional neural networks (CNN) have successfully been employed to tackle several remote sensing tasks such as image classification and show better performance than previous techniques.
Jingkun Gao +4 more
semanticscholar +1 more source