FMCW激光测距系统基于与直接注入电流调节的相同频率重新采样

相关实验视频

Updated: May 12, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

12.1K

Zhiyuan Gong, Xuanke Tong, Chuanxin Teng

    Optics express
    |June 14, 2025
    PubMed
    概括

    这项研究引入了一种新的激光测距系统,使用调制信号重新采样来克服频率调制连续波 (FMCW) 激光中的非线性. 该方法通过消除错误的数据点来提高距离分辨率和准确性.

    更多相关视频

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    9.7K
    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing10:42

    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

    Published on: March 22, 2019

    6.2K

    相关概念视频

    Flail Chest-II01:26

    Flail Chest-II

    Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
    Assessment:
    1. Clinical Evaluation:
    History:
    Spinal Cord Injury ll: Pathophysiology01:14

    Spinal Cord Injury ll: Pathophysiology

    Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
    Secondary Spinal Cord Injury llI: Pathophysiology01:25

    Secondary Spinal Cord Injury llI: Pathophysiology

    Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...