Earth-satellite-Earth laser long-path absorption experiment using the Retroreflector in Space (RIS) on the Advanced Earth Observing Satellite (ADEOS)

Sugimoto, Naoki; Koga, Nobuhiko; Matsui, Ichiro; Sasano, Yasuhiro; Minato, Atsushi; Ozawa, Kenichi; Saito, Yasunori; Nomura, Akio; Aoki, Tetsuo; Itabe, Toshikazu; Kunimori, Hiroo; Murata, Isao; Fukunishi, H.

doi:10.1088/1464-4258/1/2/015

Cited by 8 publications

(7 citation statements)

References 13 publications

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“…If scattered sunlight were on the same order of magnitude as the received laser signal, this would considerably limit our observation capabilities. Sugimoto et al [55], on the other hand, report no significant influence of sunlight in laser ground-space absorption measurements in IR wavelengths. Exposure to direct sunlight has not been considered, since it is likely to damage the detector and needs to be avoided.…”

Section: First Order Estimation Of the Link Budget And Measurement Acmentioning

confidence: 98%

“…Pure retroreflection speckle has been observed during laser ranging due to the use of reflector arrays [66], but avoided by design for absorption measurements through the use of a single cube-corner retroreflector [55], such as proposed in our preliminary design. Turbulent refraction will also degenerate an initially Gaussian beam profile into spatial intensity fluctuations in the incident wave plane, characterized by a spatial correlation scale, and leading to further potential signal loss, even if MacKerrow et al [65] are referring to interference generated during the reflection of coherent light off a rough Lambertian target.…”

Section: Potential Performance Limitationsmentioning

confidence: 99%

“…This idea was eventually dismissed because of launcher housing complexity and difficulty to manufacture. In addition, the multiple retroreflective surfaces may have caused speckle noise distortion of the beam signal and point-ahead-angle issues [55]. The final retroreflector spacecraft consists of a microsatellite with attitude and orbit control (0.65 m × 0.65 m × 0.8 m) carrying a single corner cube retroreflector with a diameter of 0.5 m and an effective reflective area of 0.2 m 2 .…”

Section: Spacecraft Design: Mass and Power Budgetsmentioning

confidence: 99%

“…Geometric beam broadening is expected to dominate the power loss of the laser link or active measurement at all wavelengths, except in the denser atmosphere where (molecular) absorption and (to a lesser extent) scattering will prevail. Beam broadening is estimated by adapting the formula utilized by Sugimoto et al [55], which reflects standard approaches used in laser ranging. We estimate the returned signal power at the receiver, P r , as…”

Section: Appendix: Details Of Snr and Error Calculations For The Ipdamentioning

confidence: 99%

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A Novel Satellite Mission Concept for Upper Air Water Vapour, Aerosol and Cloud Observations Using Integrated Path Differential Absorption LiDAR Limb Sounding

et al. 2012

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We propose a new satellite mission to deliver high quality measurements of upper air water vapour. The concept centres around a LiDAR in limb sounding by occultation geometry, designed to operate as a very long path system for differential absorption measurements. We present a preliminary performance analysis with a system sized to send 75 mJ pulses at 25 Hz at four wavelengths close to 935 nm, to up to 5 microsatellites in a counter-rotating orbit, carrying retroreflectors characterized by a reflected beam divergence of roughly twice the emitted laser beam divergence of 15 µrad. This provides water vapour profiles with a vertical sampling of 110 m; preliminary calculations suggest that the system could detect concentrations of less than 5 ppm. A secondary payload of a fairly conventional medium resolution multispectral radiometer allows wide-swath cloud and aerosol imaging. The total weight and power of the system are estimated at 3 tons and 2,700 W respectively. This novel concept presents significant challenges, including the performance of the lasers in space, the tracking between the main spacecraft and the retroreflectors, the refractive effects of turbulence, and the design of the telescopes to achieve a high signal-to-noise ratio for the high precision measurements. The mission concept was conceived at the Alpbach Summer School 2010.

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Section: First Order Estimation Of the Link Budget And Measurement Acmentioning

confidence: 98%

Section: Potential Performance Limitationsmentioning

confidence: 99%

Section: Spacecraft Design: Mass and Power Budgetsmentioning

confidence: 99%

Section: Appendix: Details Of Snr and Error Calculations For The Ipdamentioning

confidence: 99%

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A Novel Satellite Mission Concept for Upper Air Water Vapour, Aerosol and Cloud Observations Using Integrated Path Differential Absorption LiDAR Limb Sounding

et al. 2012

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“…Such good pointing stability will be achieved by introduction of an active tracking technique, as was successfully done in the Earth-satellite-Earth long-path absorption experiment with a retroreflector. 15 We experimentally investigated the absorption characteristics of ␣-pinene gas by using laser absorption techniques. Comparing the estimated results and the expected actual concentration of ␣-pinene showed the possibility of lidar detection of ␣-pinene over forest-mountain areas.…”

mentioning

confidence: 99%