The goal is to develop an engineering model of a VDE-SAT transceiver payload, implementing full VDE-SAT support (uplink and downlink protocols as well as ASM).
The Space Based VDE Transceiver will offer full VDE-SAT functionality, and is an expansion of our current VDES satellite products.
The Space Based VDE Transceiver is enclosed in a mechanical unit of size 75 x 145 x 176 mm with a weight of 1500 g (TBC). The power consumption is TBC W. The unit supports multiple antenna configurations with up to 1 Tx and 4 Rx separate antennas, and full-duplex operation (using external duplexer). Output power is 33 dBm (TBC) in single-carrier operation and 39 dBm (TBC) in multi-carrier operation.
The hardware design of the payload consists of two PCBs where the analog RF frontends and power supply is on an interface board, while the ADCs, FPGA and transmitter is found on a secondary transceiver board. The payload supports cold redundancy using a 2nd transceiver board. Xilinx Ultrascale+ is used as the FPGA solution, incorporating two Microblaze softcore microprocessors.
Communication with the satellite on-board computer is through a RS-422/485 interface. SpaceWire and CAN-Bus is supported in hardware and will be added in the future.
The project consists of the following phases and milestones:
The project is currently in Design phase.