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[White Paper] KOMPSAT-5 Standard Products Specifications

Author
SI Imaging Services
Date
2015-07-27 05:27
Views
6877
 

1. KOMPSAT-5 SAR INSTRUMENT OVERVIEW

KOrea Multi-Purpose SATellite (KOMPSAT-5, hereafter) mission objectives are the provision of SAR images for Geographic Information Systems applications, and the Korean national environment and disaster monitoring System. The mission orbit is circular and the satellite altitude is 550 Km.

The KOMPSAT-5 SAR payload includes X-band (9.66 GHz) Synthetic Aperture Radar with a fixed antenna capable of electronic steering both in the zaimuth and the elevation planes.

2. PROCESSING LEVELS OVERVIEW

SAR Standard product consists of SAR signal data or SAR image (originated by standard processing of the signal data) distributed on magnetic, optical or electronic media.

The standard processing of the KOMPSAT-5 SAR data has been thought to be as much as possible aligned with the definition deriving from literature.

If  some alternative approach has been in some case adopted for the product specification, it has been however oriented to add value to the output data, preserving in any case the possibility for the final user to remove the effects of the additional non-standard processing applied to the data. Implementation of such policy will be better detailed in the following sections.

KOMPSAT-5 products may be classified according to the following basic features:

● instrument mode

● instrument configuration to be appropriately selected within each mode according to the desired access area and acquisition technical constraints

● The level of processing that has been applied to the data

The following table summarizes the feature of the KOMPSAT-5 SAR Standard Products, which can be considered applicable independently on the instrument mode:

Product level Code Sample information Projection
0 RAW_B In-Phase and Quadrature of the echoed data with annexed Noise and Periodic Calibration measurements Time ordering organization within pulse and between pulses
1A SCS_B Single Look Complex Slant Range / Azimuth (Zero-Doppler)
SCS_U
SCS_A
SCS_W
1C GEC_B Geocoded Earth Ellipsoid UTM, EGM96 EQPOT Surface
GEC_A
GEC_W
WEC_B Geocoded Earth Ellipsoid GEOG, EGM96 EQPOT Surface
WEC_A
WEC_W
1D GTC_B Geocoded Earth Terrain UTM, DEM + EGM96 EQPOT Surface
GTC_A
GTC_W
WTC_B Geocoded Earth Terrain GEOG, DEM + EGM96 EQPOT Surface
WTC_A
WTC_W


Table 2-1. List of SAR Standard Products


3. PRODUCTS OVERVIEW

Processing levels detailed in chapter 2 applied to data acquired in all modes allowed by the KOMPSAT-5 SAR instrument, so obtaining the products listed in the following subsections.

4. OUTPUT FORMAT DESCRIPTION  

The data packaging organization adopted as distribution format for the standard products is HDF5. The support format detailed below will be used to store image layers and the relevant ancillary information, forming the output product to be distributed to the final user.

5. REGULATION GOVERNING IMAGE DISTRIBUTION

5.1 Copyright

In brief, copyright covers a certain number of rights granted to the author of an original work, whether scientific or artistic in nature, which are added to the usual right of ownership. At least under the copyright laws of the Republic of Korea, these rights are granted exclusively and automatically.

6. LICENSING

All KOMPSAT-5 image products are subject to the terms of an end-user license that will be provided to the usr at the time of delivery. The following commercial licenses are currently available from SI Imaging Services. Certain amount of uplift will be applied to the price for Multi-user, Expand, and Enterprise license and certain amount of discount will be applied to the price for Academic license.

7. WARRANTY INFORMATION 

● SI Imaging Services warrants that it has sufficient ownership rights in the PRODUCT to make the PRODUCT available to the END-USER under the terms thereof.

SI Imaging Services, a leading solution provider for Earth observation missions, announced an agreement with Korea Aerospace Research Institute(KARI) for "Worldwide Marketing and Sales Representative of KOMPSAT-2, 3 and 5 Image data."

For details, please find attached PDF file.