The Richardson-Lucy Algorithm Based Demodulation Algorithms for ...
The Richardson-Lucy Algorithm Based Demodulation Algorithms for ...
The Richardson-Lucy Algorithm Based Demodulation Algorithms for ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Introduction<br />
Two-dimensional ISI Channel Model<br />
Wiener <strong>Based</strong> <strong>Demodulation</strong> <strong>Algorithm</strong>s<br />
<strong>Richardson</strong>-<strong>Lucy</strong> <strong>Based</strong> <strong>Demodulation</strong> <strong>Algorithm</strong>s<br />
Comparison of Wiener and <strong>Richardson</strong>-<strong>Lucy</strong> <strong>Based</strong> <strong>Algorithm</strong>s<br />
Conclusions<br />
Wiener <strong>Based</strong> <strong>Demodulation</strong> <strong>Algorithm</strong>s<br />
BER Per<strong>for</strong>mance<br />
Iterative Filtering with Progressive Thresholding<br />
Wiener based iterative filtering<br />
Progressive thresholding<br />
⎧<br />
⎨ 1/2 if s (q) (x, y) ≥ T (q)<br />
s (q) (x, y) ⇐ −1/2 if s<br />
⎩<br />
(q) (x, y) < −T (q)<br />
s (q) (x, y) elsewhere<br />
(10)<br />
where T : {0, 1, 2, . . .} → [0, 1/2] is a monotone decreasing<br />
function.<br />
Hard-thresholding<br />
Zhijun Zhao and Richard E. Blahut<br />
<strong>The</strong> <strong>Richardson</strong>-<strong>Lucy</strong> <strong>Algorithm</strong> <strong>Based</strong> <strong>Demodulation</strong> <strong>Algorithm</strong>