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1. 发明授权

US08094292B2 Cross-chirped interferometry system and method for light detection and ranging 有权
标题翻译：交叉啁啾干涉测量系统和光检测和测距方法
公开(公告)号：US08094292B2
公开(公告)日：2012-01-10
申请号：US12561534
申请日：2009-09-17
申请人： Yongwoo Park , Marco Peccianti , José Azana
发明人： Yongwoo Park , Marco Peccianti , José Azana
IPC分类号： G01C3/08
CPC分类号： G01B9/0209 , G01B9/02028 , G01B2290/20 , G01J3/453 , G01S7/481 , G01S17/08
摘要： An interferometric method and system enabling light echoes-to-spectrum mapping, applicable for laser rangefinder, biomedical imaging including surface 3D mapping and tomography, vehicle position identification, and spectrum analysis. The direct mapping into spectrum allows a time-of-flight detection without using any timing pulse modulation. The sensitivity of the detection can be as high as that of the conventional low coherence interferometry, thereby an eye-safe and low-cost solution not compromising performance. In a practical implementation, high accurate range detection can be easily achievable with the level of accuracy equivalent to the laser rangefinder using a 20 ps Full-Width-at-Half-Maximum (FWHM) timing pulse. The system and method comprise applying dispersion-unbalanced interference (referred to as ‘cross-chirp interference’) and gating a phase matched spectral component. The dispersion unbalance used to induce linear one-to-one correspondence between the relative time delay and the spectral component, the performances in terms of range and resolution of the system and method increase with the increase in dispersion unbalance.
摘要翻译：一种能够实现光回波到光谱映射的干涉测量方法和系统，适用于激光测距仪，生物医学成像，包括表面3D映射和层析成像，车辆位置识别和频谱分析。直接映射到频谱中可以进行飞行时间检测，而不使用任何定时脉冲调制。检测的灵敏度可以与传统的低相干干涉测量的灵敏度一样高，从而不会影响性能的眼睛安全且低成本的解决方案。在实际实现中，通过使用20 ps全宽半最大（FWHM）定时脉冲的等效于激光测距仪的精度水平，可以很容易地实现高精度范围检测。该系统和方法包括应用色散不平衡干扰（称为“交叉啁啾干扰”）并选通相位匹配的光谱分量。用于在相对时间延迟和光谱分量之间诱导线性一对应对应的色散不平衡，系统和方法的范围和分辨率方面的性能随着色散不平衡的增加而增加。

2. 发明申请

US20100118292A1 CROSS-CHIRPED INTERFEROMETRY SYSTEM AND METHOD FOR LIGHT DETECTION AND RANGING 有权
标题翻译：用于光检测和测距的交叉干涉系统和方法
公开(公告)号：US20100118292A1
公开(公告)日：2010-05-13
申请号：US12561534
申请日：2009-09-17
申请人： Yongwoo PARK , Marco Peccianti , José Azana
发明人： Yongwoo PARK , Marco Peccianti , José Azana
IPC分类号： G01C3/08 , G01J3/45 , G01B9/02
CPC分类号： G01B9/0209 , G01B9/02028 , G01B2290/20 , G01J3/453 , G01S7/481 , G01S17/08
摘要： An interferometric method and system enabling light echoes-to-spectrum mapping, applicable for laser rangefinder, biomedical imaging including surface 3D mapping and tomography, vehicle position identification, and spectrum analysis. The direct mapping into spectrum allows a time-of-flight detection without using any timing pulse modulation. The sensitivity of the detection can be as high as that of the conventional low coherence interferometry, thereby an eye-safe and low-cost solution not compromising performance. In a practical implementation, high accurate range detection can be easily achievable with the level of accuracy equivalent to the laser rangefinder using a 20 ps Full-Width-at-Half-Maximum (FWHM) timing pulse. The system and method comprise applying dispersion-unbalanced interference (referred to as ‘cross-chirp interference’) and gating a phase matched spectral component. The dispersion unbalance used to induce linear one-to-one correspondence between the relative time delay and the spectral component, the performances in terms of range and resolution of the system and method increase with the increase in dispersion unbalance
摘要翻译：一种能够实现光回波到光谱映射的干涉测量方法和系统，适用于激光测距仪，生物医学成像，包括表面3D映射和层析成像，车辆位置识别和频谱分析。直接映射到频谱中可以进行飞行时间检测，而不使用任何定时脉冲调制。检测的灵敏度可以与传统的低相干干涉测量的灵敏度一样高，从而不会影响性能的眼睛安全且低成本的解决方案。在实际实现中，通过使用20 ps全宽半最大（FWHM）定时脉冲的等效于激光测距仪的精度水平，可以很容易地实现高精度范围检测。该系统和方法包括应用色散不平衡干扰（称为“交叉啁啾干扰”）并选通相位匹配的光谱分量。用于在相对时间延迟和光谱分量之间诱导线性一对应对应的色散不平衡，系统和方法的范围和分辨率方面的性能随着色散不平衡的增加而增加

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