Results 11 to 20 of about 126,616 (238)
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
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
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
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
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
IET Radar, Sonar & Navigation, 2021 This paper proposes a collaborative transmit resource scheduling and waveform selection (CTRSWS) strategy for target tracking in multistatic radar system which consists of one transmitter and an arbitrary number of receivers.
Yijie Wang +3 more
doaj +1 more source
IEEE Photonics Journal, 2016 Under proper optical injection, period-one (P1) dynamics of an optically injected semiconductor laser can be excited by undamping the relaxation resonance of the semiconductor through Hopf bifurcation.
Pei Zhou +4 more
doaj +1 more source
IET Signal Processing, 2022 A low probability of intercept (LPI)‐based cooperative node selection and transmit resource allocation (CNS‐TRA) strategy is proposed for multi‐target tracking in multiple radars architecture (MRA).
Lintao Ding +3 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
Optical vector analysis with attometer resolution, 90-dB dynamic range and THz bandwidth
Nature Communications, 2019 Typical methods for optical vector analysis have tradeoffs among resolution, dynamic range, and bandwidth. The authors use an asymmetric optical probe signal generator and receiver to perform attometer resolution measurement over a THz of bandwidth while
Ting Qing +4 more
doaj +1 more source