Abstract— SAT-4 is an advanced communication satellite with multi spot beam antenna. An on-board RF tracking system is required to accurately point the on-board antenna to ground. This on-board tracking system will collect the beacon carriers transmitted by uplink ground beacon terminals, which are processed and sent to the receiver and points the antenna to the desired position. The on-board RF Tracking system consists of Tracking Receiver Remote Terminal (TRRT) Interface unit which collects error and control signals from Receiver/Transmitter control unit. This TRRT interface unit consisting of FPGA card collects the data from PROM and also the error and control signals from Receiver/Transmitter control unit are stored in SRAM. The summit device collects the stored data from SRAM and processes the signals and corrects it. These corrected signals are given to altitude orbit control system to drive the antenna in the required direction. The MIL-1553 interface, which provides galvanic isolation, is used for the AOCS and Tracking Rx interaction.

Index Terms— SAT-4, FPGA, TRRT, WDT, FSM, RF, AOCS, PROM

Cite: Swathi B M and Rashmi S Bhaskar, "DESIGN AND IMPLEMENTATION OF TRACKING RECEIVER REMOTE TERMINAL FPGA CARD FOR SAT-4," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 4, No. 3, pp. 69-75, July 2015.