Here we describe several projects we currently work on. The results of some of them will hopefully become standard products. Others are interesting because of complexity or application.
We create a demonstrator of the advanced phase array technology for the synthetic aperture radars. It will be installed on the ISS. Main features and performance
Antenna size 2.5x1.25 m (determined by ISS limitations)
Baseline stripmap mode performance
Bandwidth up to 120 MHz
Ground range accessibility 200 km (incidence angles 17 - 40 deg)
Range swath 12 - 20 km
Resolution (2 - 4)/1.5 m (range/az)
NESZ < -20 dB (1 look)
Ambiguities < -20 dB
Various ScanSAR modes
Weight 70 kg
SAR phased array with thermal blanket
Subarray test in anechoic chamber
Phased array prototype thermal-vacuum test
Broadband Communication System User Terminal
Broadband Communication System User Terminal (BCS-UT) will be installed on the ISS SM "Zvezda" and provide near permanent connection of the ISS to the ground control through the GEO relay satellites "Luch".
SAIT provides Multiplexor/Demultiplexor/Modem unit (MDM). MDM features
Modem and ECC (100 Mbps outbound, 6-8 Mbps inbound, DVB-S2)
Ample processing power
1 Tbyte internal storage
PAL and digital HD video in and out
MDMs on the frame
MDM VPX chassis
Transmitter for the Moon spacecraft
SAIT will provide X-band transmitters for the Moon landers Luna-25 (Luna-Glob) and Luna-27, and for the Moon orbiter Luna-26.
All transmitters will use innovative LDPC FEC. The orbiter transmitter will use 8PSK modulation for better utilization of the scarce X-band frequency allocation.
Moon transmitter prototype
Check out some of our impressive projects.
X-band downlink transmitter and memory subsystem for the ISS. Almost all scientific information from the ISS Russian segment is transmitted by this system.
DTRES-derived Data Handling Unit (DHU) is used by Urthecast with ISS Iris/Theia system.
April 28, 2016
SAIT provided X-band downlink subsystem and flash memory modules for the experimental remote sensing satellite AIST-2D, the first satellite launched from the Vostochny spaceport