multiple choice help signals The Lapao Trarstorm has which o

multiple choice help signals

The Lapao Trarstorm has which of the following advantages when compared apply point) can determine steady state output when the Fourier Transform can determine Initial values when the FourierTransform Converges for larger number 2. Which of the following typesoffiter approximations can be desorbed as Maximally Piat (Check al that apply) 1 point Qaebyshevy (Type 1) Elliptic What is meant by maximally flat? (1 point) short answer, one or two required) 4 Why is nnear phase\" a desirable property of filters? (1 point) 5. Why the ideal brickwarlow pass fiter impossible to build?Ilpoint

Solution

1) D

As the all advantages comparing Laplas with Polar , are true .

Can determine steady state output , with accurate initial values so ,

2) A

he Butterworth filter is a type of signal processing filter designed to have as flat a frequency response as possible in the passband. It is also referred to as a maximally flat magnitude filter.

3)

filter is the best compromise between attenuation and phase response. It has no ripple in the pass band or the stop band, and because of this is sometimes called a maximally flat filter

4) Linear Phase

The above filters specify the amplitude response, but in some applications (such as multiplexing filters in frequency-division multiplexed communications system). It is important to have a linear phase response in the passband to avoid signal distortion.

5)

noramly it is seen , as a brick wall filter, cannot be built

because it would require an infinite number of selective elements and Also, a filter with time-symmetric response defies causality (any effect takes place only after the cause) thus cannot be built with ordinary hardware. This is too bad because such a filter would make it possible to optimize bandwidth use according to the sampling theorem and also because it would reject all out-of-band noise.