keep getting it wrong please help! Check each statement that is true and leave b

Question

keep getting it wrong please help!

Check each statement that is true and leave blank each statement that is false The impulse response of an ideal lowpass filter is unrealizable because it is non-causal due to its infinite length in negative time Practical filters can be designed by truncating the ideal impulse response to a finite length and applying a window to taper the discontinuities at the impulse response truncation points. An Mth order FIR filter designed with a rectangular window has a wider transition region than one designed with a tapered window such as Hamming. Designing a practical FIR filter with a tapered window reduces passband ripple and increases stopband attenuation relative to a rectangular window (no taper). All FIRs have nonlinear phase responses

Explanation / Answer

Statements 1, 2 and 4 are correct/true.

The rest (statements 3 and 5) are not true (false).

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