Photon-counting lidar for aerosol detection and 3D imaging

Marino, Richard M.; Richardson, Jonathan M.; Garnier, R.; Ireland, David B.; Bickmeier, L.J.; Siracusa, C.; Quinn, Patrick M.

doi:10.1117/12.819179

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…By stitching many images together this sensor can combine the various sporadic depth signals penetrating the foliage to obtain high resolution imaging of underlying objects. At MIT, GM FPAsarrays have also been shown for real time 3D imaging of objects [12] as well as in aerosol lidars [13].…”

Section: Introductionmentioning

confidence: 99%

Photon counting ladar work at FOI, Sweden

2012

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Photon counting techniques using direct detection has recently gained considerable interest within the laser radar community. The high sensitivity is of special importance to achieve high area coverage in surveillance and mapping applications and long range with compact systems for imaging, profiling and ranging. New short pulse lasers including the super continuum laser is of interest for active spectral imaging. A special technique in photon counting is the "time correlated single photon counting" (TCSPC). This can be utilized together with short pulse (ps) lasers to achieve very high range resolution and accuracy (mm level). Low average power lasers in the mW range enables covert operation with respect to present laser warning technology.By analyzing the return waveform range and shape information from the target can be extracted. By scanning the beam high resolution 3D images are obtained. At FOI we have studied the TCSPC with respect to range profiling and imaging. Limitations due to low SNR and dwell times are studied in conjunction with varying daylight background and atmospheric turbulence. Examples of measurements will be presented and discussed with respect to some system applications.

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Section: Introductionmentioning

confidence: 99%

Photon counting ladar work at FOI, Sweden

2012

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“…To address the problem, our goal is to develop a compact eye-safe collision avoidance LIDAR with the maximum transmitting power of 100 µW at 1550 nm for a detection range of up to 500 m. The intensity of the returned signal, however, would be so weak that single-photon detection using time-correlated sin-gle photon counting (TCSPC) technology is required, which has been applied for general single-photon ranging and threedimensional (3-D) imaging. [5][6][7][8][9] In 2007, MIT group reported a 3-D imaging single-photon LIDAR with the detection range of 150 m and the resolution of 3.65 m. [6] In 2009, a scanning time-of-flight imaging system capable of 325 m range detection and centimeter resolution was realized with an average output power of several microwatts. [9] TCSPC method has shown its excellent performance to distinguish the weak signal from a noisy background.…”

Section: Introductionmentioning

confidence: 99%

Ultra-low power anti-crosstalk collision avoidance light detection and ranging using chaotic pulse position modulation approach

Hao¹,

Gong²,

Du³

et al. 2016

Chinese Phys. B

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A novel concept of collision avoidance single-photon light detection and ranging (LIDAR) for vehicles has been demonstrated, in which chaotic pulse position modulation is applied on the transmitted laser pulses for robust anti-crosstalk purposes. Besides, single-photon detectors (SPD) and time correlated single photon counting techniques are adapted, to sense the ultra-low power used for the consideration of compact structure and eye safety. Parameters including pulse rate, discrimination threshold, and number of accumulated pulses have been thoroughly analyzed based on the detection requirements, resulting in specified receiver operating characteristics curves. Both simulation and indoor experiments were performed to verify the excellent anti-crosstalk capability of the presented collision avoidance LIDAR despite ultra-low transmitting power.

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Research on Downlink Communications Performance of Satellite-Submarine Based on Single Photon Detection

李鑫¹,

钱勇²,

朱维各³

et al. 2016

HJWC

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With the development of military technology, submarine is becoming the key to sea field. It is outstandingly important to research communication system with high data rates and safety for improving the survival ability of submarine. The traditional communication means, such as VLF and RF, need submarine float in the sea surface, which is inconvenient in war. Blue-green laser communication has attracted considerable attention as the "window" for underwater communications. In this paper, the down link communications performance of satellite-submarine is based on single photon detection. The downlink model is analyzed, and the factors of transmitted laser power, sea water working depth, pointing and tracking errors are all discussed. The results show that GM APD based single detection communication systems are available for submarine working in depth of 30 -500 m. However, there are still more key technologies to research before the realization of blue-green laser communication between satellite and submarine.

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Photon-counting lidar for aerosol detection and 3D imaging

Cited by 4 publications

References 4 publications

Photon counting ladar work at FOI, Sweden

Photon counting ladar work at FOI, Sweden

Ultra-low power anti-crosstalk collision avoidance light detection and ranging using chaotic pulse position modulation approach

Research on Downlink Communications Performance of Satellite-Submarine Based on Single Photon Detection

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