PROJECTS

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.

MiniSAR

2021

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

  • Digital beamforming

  • C-band

  • 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

SAR phased array with thermal blanket

Subarray test in anechoic chamber

Subarray test in anechoic chamber

Phased array prototype thermal-vacuum test

Phased array prototype thermal-vacuum test

Broadband Communication System User Terminal

Q3'2018

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

  • MIL-STD-1553

  • voice interface

  • VPX chassis

MDMs on the frame

MDMs on the frame

MDM VPX chassis

MDM VPX chassis

Transmitter for the Moon spacecraft

2019-2023

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

Moon transmitter prototype

Moon transmitter

Moon transmitter

Moon transmitter

Moon transmitter

 

PAST PROJECTS

Check out some of our impressive projects.

 

DTRES

Jan, 2011

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.

AIST-2D

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

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