The hamming window function ω(n) is given as

• A. \(\omega \left( n \right) = \left\{ {\begin{array}{*{20}{c}}{0.54 - 0.46\cos \left( {\frac{{2\pi n}}{N}} \right),\;\;0 \le n \le N}\\{0,\;\;else}\end{array}} \right.\)
• B. \(\omega \left( n \right) = \left\{ {\begin{array}{*{20}{c}}{0.42 - 0.5\cos \left( {\frac{{2\pi n}}{N}} \right) + 0.08,\;\;0 \le n \le N}\\{0,\;\;else}\end{array}} \right.\)
• C. \(\omega \left( n \right) = \left\{ {\begin{array}{*{20}{c}}{0.45 + 0.46\sin \left( {\frac{{2\pi n}}{N}} \right),\;\;0 \le n \le N}\\{0,\;\;else}\end{array}} \right.\)
• D. \(\omega \left( n \right) = \left\{ {\begin{array}{*{20}{c}}{0.42 - 0.5\sin \left( {\frac{{2\pi n}}{N}} \right) + 0.08,\;\;0 \le n \le N}\\{0,\;\;else}\end{array}} \right.\)