Digital Modulation Techniques
Digital Modulation Techniques digital communication, digital communication assignment, digital communication assignment no 2, digital communication assignments, digital communication all assignments Q.1) Draw & explain euclidian distance and PSD of BPSK, M-ary PSK & 16-ary QAM. Q.2)Explain QPSK. Elaborate your answer with suitable expression, signal space& spectral representation. How QPSK signal is generated and received? What is the difference between OQPSK & QPSK? Q.3) Error occurs in DPSK in pair & in DEPSK error always occurs in single bit. Explain with suitable example. Q.4) Describe the scheme to recover the baseband signal in BPSK. With the help of block diagram and signals marked at input, output of these blocks. Also show that output of receiver is proportional to square root of power within the bit duration. Q.5) Sketch the Power Spectral density of BPSK signal and estimate the bandwidth where input data rate is 10Mbps a