1  Papers

1.1  Fixed-Point Arithmetic and Algorithms

• “Fixed-Point Arithmetic: An Introduction”. Describes standard fixed-point binary number representations, provides rules of fixed-point arithmetic for common operations such as multiplication, defines concepts such as precision and range, and provides an example of the analysis of a fixed-point algorithm.
• “Practical Considerations in Fixed-Point FIR Implementations”. Discusses issues such as conversion of “real” coefficients into fixed-point representations and techniques for requantizing filter outputs.

1.2  Quantization and Data Conversion

• A two-part presentation of a delta-sigma D/A converter, presented at the first annual comp.dsp conference in 2005:
  • “One-Bit Delta Sigma D/A Conversion Part I: Theory”
  • “One-Bit Delta Sigma D/A Conversion Part II: Implementation”
• “Reducing ADC Quantization Noise”. A June 2005 Microwaves and RF Magazine article coauthored by myself and Rick Lyons.
• “The Application of Dither and Noise-Shaping to Nyquist-Rate Digital Audio: An Introduction”. Christopher Hicks’ excellent introductory article on noise-shaping.
• “The Theory Of Dithered Quantization”. Ph.D. thesis of Robert Wannamaker.
• “Principles of Sigma Delta Modulation for Analog-To-Digital Converters”. A Motorola application note by Sangil Park, Ph.D.

1.3  Coding and Information Theory

• “A Coding Theory Tutorial” An elementary introduction to coding theory. Introduces Shannon’s Noisy Coding Theorem, discrete memoryless channels, linear codes, block codes, Galois Fields, coding gain. Includes uncoded and coded simulations to see the advantage of coding.
• “Derivation of the Shannon Efficiency Limit” A derivation of the well-known -1.6 dB limit in efficiency predicted by Shannon’s capacity formula.
• “A Nordstrom-Robinson Error Correction Decoder” Describes a hardware (FPGA) implementation of a code used in communication systems to reduce probability of transmission errors.

1.4  Digital Communications

• “An introduction to Orthogonal Frequency Division Multiplexing (OFDM)”. Ove Edfors et. al.
• “MSK and its Application to Wireless Data Transmission”. MX-COM Application Note. dddd

1.5  Analog Communications Using DSP

• “FM Demodulation Using A Digital Radio and Digital Signal Processing”. James Michael Shima, Masters Thesis, University of Florida.

1.6  Perceptual Coding

• “One-Bit Delta Sigma D/A Conversion Part I: Theory”. A delta-sigma D/A converter architecture incorporating psychoacoustic noise shaping.
• “ATRAC: Adaptive Transform Acoustic Coding for MiniDisc”. AES convention preprint on the Minidisk ATRAC (Adaptive Transform Acoustic Coding) algorithm.

1.7  Digital Signal Processing

• “DC Blocker Algorithms”. March 2008 article in IEEE’s Signal Processing Magazine, coauthored by myself and Rick Lyons.

2  Web Links on DSP and Communications

• http://www.bdti.com/resources/comp.dsp.faq comp.dsp newsgroup FAQ