Design of Optimized π/4 DQPSK Modem using Fuzzy Based CORDIC Algorithm for MIMO Radar

In the present work, a power efficient implementation of π/4 DQPSK modem using Co-ordinate Rotation Digital Computer (CORDIC) Algorithm by use of Hardware Description Language (VHDL). In CORDIC Algorithm, to generate a carrier in the modulator and arc tan computer in the demodulator. CORDIC algorithm reduces hardware cost and improves performance. The proposed π/4 DQPSK Modem is tested in Simulink and desired results are found. In this paper, we performed the BER analysis of π/4 DQPSK modem in MATLAB Simulink and we compare the presentation of π/4 DQPSK modulation with other modulation techniques like BPSK, QPSK etc. using MATLAB it can be performed by measuring the BER at the system which is exposed to multipath Rayleigh fading channel and AWGN channel.