What is the best side-lobe attenuation expected

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Reference no: EM131140163

It is desired to estimate the spectrum of x[n] by applying a 512-point Kaiser window to the signal before computing X (ejω).

(a) The requirements for the frequency resolution of the system specify that the largest allowable main lobe for the Kaiser window is π/100. What is the best side-lobe attenuation expected under these constraints?

(b) Suppose that you know that x[n] contains two sinusoidal components at least π/50 apart, and that the amplitude of the stronger component is 1. Based on your answer to part (a), give a threshold on the smallest value of the weaker component you would expect to see over the side lobe of the stronger sinusoid.

Reference no: EM131140163

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