PySDR: A Guide to SDR and DSP using Python

by Dr. Marc Lichtman

• 1. Introduction
  • Purpose and Target Audience
  • Contributing
  • Acknowledgements
• 2. Frequency Domain
  • Fourier Series
  • Time-Frequency Pairs
  • Fourier Transform
  • Time-Frequency Properties
  • Fast Fourier Transform (FFT)
  • Negative Frequencies
  • Order in Time Doesn’t Matter
  • FFT in Python
  • Windowing
  • FFT Sizing
  • Spectrogram/Waterfall
• 3. IQ Sampling
  • Sampling Basics
  • Nyquist Sampling
  • Quadrature Sampling
  • Complex Numbers
  • Complex Numbers in FFTs
  • Receiver Side
  • Receiver Architectures
  • Carrier and Downconversion
  • Baseband and Bandpass Signals
  • DC Spike and Offset Tuning
  • Sampling Using our SDR
  • Calculating Average Power
  • Calculating Power Spectral Density
• 4. Digital Modulation
  • Symbols
  • Wireless Symbols
  • Amplitude Shift Keying (ASK)
  • Phase Shift Keying (PSK)
  • IQ Plots/Constellations
  • Quadrature Amplitude Modulation (QAM)
  • Frequency Shift Keying (FSK)
  • Python Example
• 5. PlutoSDR in Python
  • Software/Drivers Install
  • Receiving
  • Transmitting
  • Transmitting and Receiving Simultaneously
  • Python Exercises
• 6. USRP in Python
  • Software/Drivers Install
  • Receiving
  • Transmitting
  • Transmitting and Receiving Simultaneously
  • Subdevice, Channels, and Antennas
  • Syncing to 10 MHz and PPS
• 7. Noise and dB
  • Gaussian Noise
  • Decibels (dB)
  • Noise in Frequency Domain
  • Complex Noise
  • AWGN
  • SNR
  • External Resources
• 8. Filters
  • Filter Basics
  • Filter Representation
  • Filter Implementation
  • Filter Design Tools
  • Convolution
  • Filter Design in Python
  • Intro to Pulse Shaping
• 9. Link Budgets
  • Intro
  • Signal Power Budget
  • Noise Power Budget
  • SNR
  • Example Link Budget: ADS-B
• 10. Channel Coding
  • Why We Need Channel Coding
  • Types of Codes
  • Code-Rate
  • Modulation and Coding
  • Hamming Code
  • Soft vs Hard Decoding
  • Shannon Limit
  • State of the Art Codes
• 11. IQ Files
  • Binary Files
  • Python Examples
  • Visually Analyzing an RF File
  • Max Values and Saturation
  • Annotating IQ Files
• 12. Multipath Fading
  • Multipath
  • Fading
  • Simulating Rayleigh Fading
  • Mitigating Multipath Fading
• 13. Pulse Shaping
  • Inter-Symbol-Interference (ISI)
  • Matched Filter
  • Splitting a Filter in Half
  • Specific Pulse Shaping Filters
  • Roll-Off Factor
  • Python Exercise
• 14. Synchronization
  • Introduction
  • Simulating Wireless Channel
  • Time Synchronization
  • Time Synchronization with Interpolation
  • Coarse Frequency Synchronization
  • Fine Frequency Synchronization
  • Frame Synchronization
• 15. About the Author