- Satellite Terminal Sector
- Satellite Manufacturing Sector
PDHU : Payload Data Hanfling Unit
PDHU is a core device of satellite payload to transmit large input data from observation sensors to the ground station.
The transmission of PDHU is processed in real time by high-speed compression, storage, encryption, and channel codification.
We localized technologies of high-speed data processing device for KOMPSAT 3 and KOMPSAT 3A and developed the PDHU which will be applied to the next satellite.
Specifications of the PDHU applying to the next satellite are as follows.
|Input||Serial LVDS (2Gbps per channel) x 5|
|Output||LVDS (160Mbps per channel) x 4 or Serial LVDS (640Mbps per channel) x 2|
|Compression standard||CCSDS 122-B-1 (DWT / BPE)
(DWT : Discrete Wavelet Transform, BPE : Bit Plane Encoder)
|Memory capacity||256Gbits per memory module x 5|
|Data output format||CCSDS|
|Power consumption||≤ 300.0 Watt (peak)|
|Size||652mm x 344mm x 201mm|