EE 445S Real-Time Digital Signal Processing Laboratory - Lecture 14

Lecture by Prof. Brian L. Evans

Before Lecture

"The Year 1812, Festival Overture in E flat major", Part 2. Performed by the Halle Orchestra, Royal Albert Hall, 2004. Composed by Pyotr Ilyich Tchaikovsky in 1880.
"Roam", B-52s, 1989.

Lecture

Lecture on Matched Filtering in PowerPoint format. Video: Part 1 - Part 2 - Part 3 - Part 4

Supplemental

Karagiannidis and Lioumpas, "An Improved Approximation for the Gaussian Q function", IEEE Communication Letters, August 2007. With
```
       1         x    
Q(x) = - erfc(-------)
       2      sqrt(2) 
```
the authors approximate erfc(x) by g(x) h(x), where
```
             2   
           -x    
          e      
h(x) = ----------
       sqrt(pi) x

            -A x
       1 - e    
g(x) = ---------
          B     
```
where A = 1.98 and B = 1.135 to minimize the absolute error for x in [0, 20].

Last updated 09/20/14. Send comments to (Mailbox) bevans@ece.utexas.edu