EC > GATE 2015 SET-3 > Digital Filters
Consider a four-point moving average filter defined by the equation y[n] = ∑i=03αi x[n-i]. The condition on the filter coefficients that results in a null at zero frequency is
A
α1 = α2 = 0; α0 = -α3
B
α1 = α2 = 1; α0 = -α3
C
α0 = α3 = 0; α1 = α2
D
α0123=0

Correct : d

Similar Questions

It is desired to find a three-tap causal filter which gives zero signal as an output to an input of the form x[n]=c1exp(-jπn/2)+c2exp(jπn/2) where c1...
#378 MCQ
A continuous-time filter with transfer function H(s)=(2s+6)/(s2+6s+8) is converted to a discrete-time filter with transfer function G(z)=(2z2-0.5032z)/(z2-0.503...
#707 Fill in the Blanks
An FIR system is described by the system functionH(z) = 1 + (7/2) z-1 + (3/2) z-2The system is
#1004 MCQ

Related Topics

No tags found

Unique Visitor Count

Total Unique Visitors

Loading......