Please answer in as much detail as possible. Thank you. Question 5 Check each st

Question

Please answer in as much detail as possible. Thank you.

Question 5 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

1 ) False

Impulse response of Ideal Low Pass Filter is realisable since ,

Low pass filter allows low frequency and Frequency is only positive .

Hence , Impulse response is possible .

2)

True

We design Practically the filters by getting thee impulse response and since it is not that the Outpput suddenly become high or low it need a tamper .

3)

False

Because for Mth order We get the M+1 samples but size of sample is same as normal

4)

True

5)

false

All FIR filter do not have Nonlinea phase responnse

Infact Linear Phase response is property of filter

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---