BPSK, QPSK, and 16QAM Modulation Techniques with Waveform, Eye Diagram, and Power Spectrum Analysis

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Resource Overview

Generate a random binary sequence exceeding 1000 bits and implement BPSK, QPSK, and 16QAM modulation schemes. Key outputs include: 1) Low-pass filtered waveform visualization (10 symbol periods); 2) Signal eye diagram analysis (5 symbol periods) with technical discussion; 3) In-band and out-of-band power spectral density plots using customizable low-pass filter parameters.

Detailed Documentation

Generate a random binary sequence containing over 1000 '0' and '1' bits and implement BPSK, QPSK, and 16QAM modulation schemes. The implementation should include:

1) Visualization of waveforms after low-pass filtering (displaying 10 symbol periods). In code implementation, this typically involves applying a raised-cosine filter with specified roll-off factor to simulate band-limited transmission.

2) Generation of signal eye diagrams (showing 5 symbol periods) with detailed technical analysis. The eye diagram helps evaluate signal integrity by overlapping multiple symbol periods, where eye opening indicates noise margin and timing sensitivity.

3) Plotting of in-band and out-of-band power spectral density graphs (using programmer-defined low-pass filter parameters). The power spectrum analysis reveals bandwidth efficiency and out-of-band emissions, where QPSK and 16QAM demonstrate progressively higher spectral efficiency compared to BPSK.

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