Environmental Test Results of a Flight Model of a Compact Imaging Spectrometer for a Microsatellite STSAT-3

Lee, Sang-Jun; Kim, Jung-Hyun; Lee, Jun Ho; Lee, Chi Won; Jang, Tae Sung; Kang, Kyung-In

doi:10.3807/kjop.2011.22.4.184

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Aeronautics and Space Administration, NASA) EO(Earth . 2013 11 21 3 COMIS(Compact Imaging Spectrometer) (Lee et al, 2011) .…”

Section: (Nationalmentioning

confidence: 99%

Applicability of Hyperspectral Imaging Technology for the Check of Cadastre's Land Category

Lee¹,

Hyun²

2014

Journal of the Korean Society of Surveying, Geodesy, Photogramm

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Aerial imagery, Satellite imaging and Hyperspectral imaging(HSI) are widely using at mapping those of agriculture, woodland, waters•shoreline, and land cover, but are rarely applied at the Cadastre. There are many study cases on the overlay of aerial imagery and satellite imaging with Cadastral Map and the upgrade and registration of Cadastre' Land Category, however, reported as successful. Therefore, this study has been aimed to show the use of the Hyperspectral Imaging technology for Cadastre, especially for the land category. Also, the HSI sensor could function as a geospatial acquisition tool for error checks of the existed land categories, and as a helpful tool for acquiring the attributes and spatial data, such as the agriculture, soil, and vegetation, etc. This result indicates that HSI sensor can implement the Multipurpse Cadastre(MPC) by fusing with the cadastral information.

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“…Aeronautics and Space Administration, NASA) EO(Earth . 2013 11 21 3 COMIS(Compact Imaging Spectrometer) (Lee et al, 2011) .…”

Section: (Nationalmentioning

confidence: 99%

Applicability of Hyperspectral Imaging Technology for the Check of Cadastre's Land Category

Lee¹,

Hyun²

2014

Journal of the Korean Society of Surveying, Geodesy, Photogramm

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Stray Light Analysis of a Compact Imaging Spectrometer for a Microsatellite STSAT-3

Lee¹,

Lee²

2012

Korean Journal of Optics and Photonics

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This paper reports on the stray light analysis results of a compact imaging spectrometer (COMIS) for a microsatellite STSAT-3. COMIS images Earth's surface and atmosphere with ground sampling distances of 27 m at the 18 ~ 62 spectral bands (0.4 ~ 1.05 μm) for the nadir looking at an altitude of 700 km. COMIS has an imaging telescope and an imaging spectrometer box into which three electronics PCBs are embedded. The telescope images a 27 m × 28 km area of Earth surface onto a slit of dimensions 11.8 μm × 12.1 mm. This corresponds to a ground sampling distance of 27 m and a swath width of 28 km for nadir looking posture at an altitude of 700 km. Then the optics relays and disperses the slit image onto the detector thereby producing a monochrome image of the entrance slit formed on each row of detector elements. The spectrum of each point in the row is imaged along a detector column. The optical mounts and housing structures are designed in order to prevent stray light from arriving onto the image and so deteriorating the signal to noise ratio (SNR). The stray light analysis, performed by a non-sequential ray tracing software (LightTools) with three dimensional housing and lens modeling, confirms that the ghost and stray light arriving at the detector plane has the relative intensity of ~10 -5 and furthermore it locates outside the concerned image size i.e. the field of view of the optics.

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System Level Space Environment Testing of Satellite Digital Transponder

Song¹,

Kim²,

Lee³

et al. 2013

The Journal of Korean Institute of Communications and Informati

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EQM Model Digital transponder applying the Korean's own designing and manufacturing technology has gone through a series of trials and errors during the development. In particular, lack of thermal designs expedience for the vacuum causes variety of errors in designing, assembling transponder and setting up the test at the first thermal vacuum test (TVAC). Since the first TVAC test could not accomplished its aims successfully, so the second TVAC should be performed as make up test with revised Digital transponder. In this paper, the defects that identified in the first TVAC are analyzed and applied solutions and its results at the second TVAC are presented. Using the lessons from the first and second TVAC, we will be able to make more reliable digital transponders in the next phase of project. In addition it also be useful as a reference when we design another satellite payloads.

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Environmental Test Results of a Flight Model of a Compact Imaging Spectrometer for a Microsatellite STSAT-3

Cited by 3 publications

References 13 publications

Applicability of Hyperspectral Imaging Technology for the Check of Cadastre's Land Category

Applicability of Hyperspectral Imaging Technology for the Check of Cadastre's Land Category

Stray Light Analysis of a Compact Imaging Spectrometer for a Microsatellite STSAT-3

System Level Space Environment Testing of Satellite Digital Transponder

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