Digital Signal Processing Tricks

One of the things that makes DSP so interesting is its wide variety of tricks, usually to reduce the processing required for a given operation. The right DSP trick can be a nugget of gold. Here, we provide a gold mine of well known - and not so well known - DSP tricks.

Expanded Table of Contents

• Filtering Tricks
  • DSP Trick: Simple Filter Coefficient Interpolation
  • DSP Trick: Filtering in QAM transmitters and receivers
  • DSP Trick: FIR Filtering in C
  • DSP Trick: Using Parks-McClellan to Design a Non-Linear Phase FIR Filter
• Function Approximation Tricks
  • DSP Trick: Magnitude Estimator
  • DSP Trick: Quick-and-Dirty Logarithms
  • DSP Trick: Fixed-Point Atan2 With Self Normalization
  • DSP Trick: Simultaneous Parabolic Approximation of Sin and Cos
  • DSP Trick: Square Root Computation
  • DSP Trick: Polynomial Evaluation via Horner's Rule
• Data Conversion Tricks
  • DSP Trick: Fast Floating-Point to mu-Law Conversion
  • DSP Trick: Gray Code Conversion
• Miscellaneous Tricks
  • DSP Trick: Complex Downconverters for Signals at Fs/4 or 3Fs/4
  • DSP Trick: Sinusoidal Tone Generator
  • DSP Trick: Fast Floating Point to Mu-Law Conversion
  • DSP Trick: Fixed-Point DC Blocking Filter with Noise-Shaping
  • DSP Trick: Dealing With Propagating Truncation Errors

Top-Level Table of Contents