Field Guide to Lidar

McManamon, Paul

doi:10.1117/3.2186106

Cited by 76 publications

(52 citation statements)

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“…(4) Arec is related to the maximum measurable range, R, and is given by Eq. (5) [17]. ET and ES are the transmitted and received powers respectively, Ailm is the area of the illumination spot, σ is the cross sectional area of the object being detected, and α is the reflectivity of the object.…”

Section: System Proposal To Increase Number Of Scanning Spotsmentioning

confidence: 99%

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Single chip lidar with discrete beam steering by digital micromirror device

et al. 2017

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Section: System Proposal To Increase Number Of Scanning Spotsmentioning

confidence: 99%

“…We replaced the energy received by the APD, given as ES in literature [17], with the photosensitivity of the detector, S, by using …”

Section: System Proposal To Increase Number Of Scanning Spotsmentioning

confidence: 99%

Single chip lidar with discrete beam steering by digital micromirror device

et al. 2017

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“…As LIDAR is a distance-measuring device, the maximum distance obtained is shown in Table 14, and the accuracy and precision are shown in Tables 15 and 16, respectively. The maximum distance was determined by the TNR [3,5,10,11,19,53]. Using the result of the measured power and the relationship between the received power measured distance, and target surface reflectivity illustrated in Equation 1, we estimated the received power based on the distance.…”

Section: Performance Evaulation Of Combined Techniquesmentioning

confidence: 99%

“…Pulse scanning light detection and ranging (LIDAR) measures the distance to a given object using a time-of-flight (ToF) technique that calculates the time required for a pulse to transmit to and reflect off the object [1][2][3][4][5][6]. The distance image of the surroundings can be generated with excellent angular resolution and is used to determine the area that can be traveled while mounted on an autonomous vehicle or an autonomous mobile robot.…”

Section: Introductionmentioning

confidence: 99%

Suitable Combination of Direct Intensity Modulation and Spreading Sequence for LIDAR with pulse coding

Kim

Park

2018

Preprint

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In the coded pulse scanning light detection and ranging (LIDAR) system, the number of laser pulses used at a given measurement point changes depending on the modulation and the method of spreading used in optical code-division multiple access (OCDMA). The number of laser pulses determines the pulse width, output power, and duration of the pulse transmission of a measurement point. These parameters determine the maximum measurement distance of the laser and the number of measurement points that can be employed per second. In this paper, we evaluate the performance and characteristics of combinations of modulation and spreading technology that can be used for OCDMA, and study optimal combinations according to varying operating environments.

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“…Distance measurements is also being intensively addressed by the optical community developing Light detection and ranging (LIDAR) systems 30,31 . The distance is typically retrieved by time of flight (ToF) measurements of the light, from the source to the target and return.…”

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confidence: 99%

Nanometric axial localization of single fluorescent molecules with modulated excitation

Jouchet

Cabriel

Bourg

et al. 2019

Preprint

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Strategies have been developed in LIDAR to perform distance measurements for non-coherent emission in sparse samples based on excitation modulation. Super-resolution fluorescence microscopy is also striving to perform axial localization but through entirely different approaches. Here we revisit the amplitude modulated LIDAR approach to reach nanometric localization precision and we successfully adapt it to bring distinct advantages to super-resolution microscopy. The excitation pattern is performed by interference enabling the decoupling between spatial and time modulation. The localization of a single emitter is performed by measuring the relative phase of its linear fluorescent response to the known shifting excitation field. Taking advantage of a tilted interfering configuration, we obtain a typical axial localization precision of 7.5 nm over the entire field of view and the axial capture range, without compromising on the acquisition time, the emitter density or the lateral localization precision. The interfering pattern being robust to optical aberrations, this modulated localization (ModLoc) strategy is particularly well suited for observations deep in the samples. Images performed on various biological samples show that the localization precision remains nearly constant up to several micrometers.In the presence of coherent signals, interferometry offers unmatched sensitivity for distance measurements 1 .Measuring the relative phase between the excitation in the elastically scattered or reflected signal reaches record precisions. Interferometry has thus naturally been used in some coherent microscopy configurations to obtain nanometric axial localization 2-5 . However, in the case of fluorescence microscopy which is today the most widespread technique for cell imaging such an approach remains impossible because of the non-

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Field Guide to Lidar

Cited by 76 publications

References 0 publications

Single chip lidar with discrete beam steering by digital micromirror device

Single chip lidar with discrete beam steering by digital micromirror device

Suitable Combination of Direct Intensity Modulation and Spreading Sequence for LIDAR with pulse coding

Nanometric axial localization of single fluorescent molecules with modulated excitation

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