FMCW lidar using phase-diversity coherent detection to avoid signal aliasing

Z Xu, H Zhang, K Chen, D Zhu… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
A frequency-modulated continuous-wave (FMCW) lidar is proposed to avoid signal aliasing
in the measurement of distance and velocity. In the transmitter, a lightwave is amplitude …

Coherent lidar system using tunable carrier-suppressed single-sideband modulation

N Kaneda - US Patent 10,330,778, 2019 - Google Patents
We disclose a lidar system that includes a modulator-based probe-light generator and a
coherent optical receiver. The probe-light generator uses tunable carrier-suppressed single …

Frequency-modulated chirp signals for single-photodiode based coherent LiDAR system

W Yi, Z Li, Z Zhou, E Sillekens, T Gerard… - Journal of Lightwave …, 2021 - opg.optica.org
In this paper, we investigate two categories of linear frequency-modulated chirp signals
suitable for single-photodiode based coherent light detection and ranging (LiDAR) systems …

Impact of laser phase noise on ranging precision within and beyond laser coherence length in FMCW LiDAR

W Yi, Z Zhou, Z Liu, P Bayvel… - 2023 Optical Fiber …, 2023 - ieeexplore.ieee.org
Impact of Laser Phase Noise on Ranging Precision Within and Beyond Laser Coherence
Length in FMCW LiDAR Page 1 Impact of Laser Phase Noise on Ranging Precision Within …

Dual-sideband linear FMCW lidar with homodyne detection for application in 3D imaging

PAM Sandborn, N Kaneda, YK Chen… - CLEO: Science and …, 2016 - opg.optica.org
Dual-Sideband Linear FMCW Lidar with Homodyne Detection for Application in 3D Imaging
Page 1 STu4H.8.pdf CLEO:2016 © OSA 2016 Dual-Sideband Linear FMCW Lidar with …

Random phase compensation method of coherent lidar based on symmetrical double harmonic signals

F Fang, H Hu, X Liu, J Sheng, S Zhu, W Xu, R Shu - Optics …, 2023 - Elsevier
The coherent cumulative lidar based on the symmetrical double harmonic signals has been
implemented and verified. In the system, the double harmonic signals are generated by the …

Multi-target CW interferometric acoustic measurements on a single optical beam

Y Zhang, CP Bandutunga, MB Gray, JH Chow - Optics Express, 2019 - opg.optica.org
We present a free-space, continuous-wave laser interferometric system capable of multi-
target dynamic phase measurement at acoustic frequencies up to a Nyquist bandwidth of …

Self-homodyne coherent Lidar system for range and velocity detection

F Al-Shaikhli, A Lamsal, G Moreira, M O'Sullivan… - Optics …, 2024 - opg.optica.org
A high resolution FMCW Lidar system based on a phase-diverse self-homodyne coherent
receiver is demonstrated. Using the same linearly chirped waveform for both the transmitted …

Digital signal processing for optical communications and coherent LiDAR

W Yi - 2023 - discovery.ucl.ac.uk
Internet data traffic within data centre, access and metro networks is experiencing
unprecedented growth driven by many data-intensive applications. Significant efforts have …

Research on wavelength hop** low probability of intercept coherent LiDAR technology

L Xu, J Sun, Q Xu, Z Lu, L Zhang, C Li… - Fourteenth …, 2023 - spiedigitallibrary.org
We propose a coherent light detection and ranging (LiDAR) with a low probability of
intercept (LPI) based on wavelength hop** technology and phase-encoded random …