• BYU/MERS SIR image format Documentation and source
• BYU high resolution wind readers Source Code
• LongLib93 The LongLib graphics library
• Phase unwrapping demo program ( in C) described in D. G. Long, "Exact Computation of the Unwrapped Phase of a Finite-Length Time Series," IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. 36, No. 11, pp. 1787-1790, Nov. 1988. (353 kB PDF*)
• Discrete Hilbert transform signal analysis for instanteous frequency computation:
  D.G. Long, "Comments on Hilbert Transform-Based Signal Analysis," MERS 04-001, 3 Feb. 2004. (279 kB PDF*).
  Matlab routines: discrete Hilbert transform-based instanteous frequency function dHif.m and demo script for dHif.m
• On-Line documentation for Perl (dated)
• On-Line documentation for standar C (dated)

*note: selected PDF files are provided as a convenient public service under fair-use copyright restrictions. Copyright is retained by the original owner.