InterviewSolution
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InterviewSolution
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The cross correlation of two real finite energy sequences x(n) and y(n) is given as __________(a) \(r_{xy}(l)=\sum_{n=-\infty}^{\infty}x(n)y(n-l)\) where l=0,±1,±2,…(b) \(r_{xy}(l)=\sum_{n=0}^{\infty}x(n)y(n-l)\) where l=0,±1,±2,…(c) \(r_{xy}(l)=\sum_{n=-\infty}^{\infty}x(n)y(n-l)\) where -∞ |
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Answer» CORRECT choice is (a) \(r_{xy}(l)=\sum_{n=-\infty}^{\infty}x(n)y(n-l)\) where l=0,±1,±2,… Easy explanation: If any TWO SIGNALS x(n) and y(n) are REAL and finite energy signals, then the correlation between the two signals is known as cross correlation and its equation is given as rxy(l)=\(\sum_{n=-\infty}^{\infty} x(n)y(n-l)\) where l=0,±1,±2,… |
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