Design and Evaluation of BPSK Demodulator using Model based Programming

Binary Phase Shift Keying (BPSK) is the simplest and most commonly used digital transmission technique for satellite telemetry link. Design and evaluation of FPGA based BPSK demodulator using model based programming for satellite telemetry link is proposed is this paper. The system is designed using three approaches: Costas loop, square loop and comparator method. Two encoding schemes, NRZ-L and NRZ-S have been employed for the design. The performance of proposed design is evaluated by hardware implementation of the models on a Zynq 7000 FPGA based ZED board and the results are reported for various combinations of data rates and carrier frequencies.