1. Signal processing  
   From Wikipedia, the free Encyclopedia, Wikimedia Foundation
2. Signal Processing Object Tutorials  
   D. Waxman, Florida Electroacoustic Music Program, University of Florida, Gainesville, FL
3. Fourier methods in signal processing  
   Kristian Sandberg, Applied Mathematics Dept., University of Colorado, Boulder, CO
4. An Introduction to Signal Processing in Chemical Analysis  
   Tom O'Haver, Chemistry and Biochemistry, University of Maryland, College Park, MD  
5. Signal Processing Aspects of Scientific Visualization    
   Robert J. Moorhead; Zhifan Zhu, Engineering Resource Center, Mississippi State Univ., MS
6. Tratamiento Digital de Señal  
   Andoni Irizar Picón, Campus Tecnológico de la Universidad de Navarra, San Sebastián, Spain
7. A Practical Guide to Wavelet Analysis  
   Christopher Torrence; Research Systems, Inc., Gilbert P. Compo, Climate Diagnostics Center, Boulder, CO
8. Notes on Signals & Systems  
   Fred DePiero, et. al., Electrical Engineering,  Cal. Poly. State University , San Luis Obispo, CA
9. Signal Processing Information Base (SPIB)
   Signal Processing Society and the National Science Foundation, Rice University, Houston, TX  
10. Signal Processing - Exploratories  
    Computer Graphics Research Group, Brown University, Providence, RI  
11. Digital Filter Design Applets   
    Jeffrey D. Taft, Ph. D.,  Electrical Engineering, 1986, University of Pittsburgh, PA  
12. Introduction of Matlab using in DSP  PDF  
    Lechun Jin, Computer Science and Engr., Oregon Health and Science Univ., Beaverton, OR
13. MATLAB for Signal Processing  PDF  
    Daniel Rabinkin, Ctr. for Advanced Information Processing, Rutgers, The State Univ. of New Jersey.
14. Basic Signal Processing  PDF  
    Pat Hanrahan, Computer Science Electrical Engineering Dept., Stanford University, CA  

(c) John H. Mathews 2006