Signals and system A)Sketch the signal x(n)=u(n)-u(n-2) B)Determine if signal sin3 (n) is periodic.
Signals and system
A)Sketch the signal x(n)=u(n)-u(n-2)
B)Determine if signal sin3 (n) is periodic.
Homework Answers
A)
only at n=0 and n=1 u(n) has value 1 everwhere else due to subtraction value is 0(ie, becomes 1-1=0).
The sketch is :
B)
Sin3(n) is not periodic as sin has period 
so to become periodic n should be a multiple of
at some point in time , but n can have only values which are
rational (ex: 1,2,3,4 etc) n cant have irrational values (eg n cant
be 
).Thus function is not periodic.
Add Answer to:
Signals and system
A)Sketch the signal x(n)=u(n)-u(n-2)
B)Determine if signal sin3 (n) is periodic.
JU Q1. Sketch the following SIGNALS and determine for each whether it is: Periodic or aperiodic....
JU Q1. Sketch the following SIGNALS and determine for each whether it is: Periodic or aperiodic. If periodic, • Even, odd, or neither. If it is neither, specify To. decompose it into even part Ev{x} Energy signal, power signal, or and odd part Od{x} and sketch them. neither. Find the total energy E. and average power PC- 12 -1<n<1 (a) xa n] = lo otherwise (b) xo(t) = xy(t) + x2(t), where x,(t) and x2(t) are the signals shown below:...
Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period.
Instruction: Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period.1. x[n] = ej(π/4)n 2. x[n] = cos1/4n 3. x[n] = cosπ/3 n + sinπ/4 n 4. x[n] = cos2π/8 n
3. Determine whether or not each of the following signals is periodic. If a signal is...
3. Determine whether or not each of the following signals is periodic. If a signal is periodic fundamental period x(t)=cos(2t+4 Determine whether the following signals are Energy signals or Power signals a. 4.
HW 11.5 Consider the periodic "square wave" signal defined by x(t)- u(t - 4k) - u(t - 2-4k) (a) S...
HW 11.5 Consider the periodic "square wave" signal defined by x(t)- u(t - 4k) - u(t - 2-4k) (a) Sketch x(t) (b) Sketch g(t) = x(t)-0.5 (c) Sketch |x(jw)|. Hint: First determine the Fourier series expansion of x() (d) Sketch IG(Go)
HW 11.5 Consider the periodic "square wave" signal defined by x(t)- u(t - 4k) - u(t - 2-4k) (a) Sketch x(t) (b) Sketch g(t) = x(t)-0.5 (c) Sketch |x(jw)|. Hint: First determine the Fourier series expansion of x() (d)...
Problem (3) a) A periodic square wave signal x(t) is shown below, it is required to answer the below questions: x(t) 1. What is the period and the duration of such a signal? 2. Determine the fund...
Problem (3) a) A periodic square wave signal x(t) is shown below, it is required to answer the below questions: x(t) 1. What is the period and the duration of such a signal? 2. Determine the fundamental frequency. 3. Calculate the Trigonometric Fourier Series and sketch the amplitude spectrum and phase spectrum of the signal x(t) for the first 5 harmonics. b) Find the Continuous Time Fourier Series (CTFS) and Continuous Time Fourier Transform (CTFT) of the following periodic signals...
2. Determine the FS coefficients for each of the following DT periodic signals. (a) x[n] =...
2. Determine the FS coefficients for each of the following DT periodic signals. (a) x[n] = sin(2 /3) cos(in/2) (b) x[n] periodic with period 4 and x[n] = 1 - sin n for 0 <n<3. (e) a[n) periodic with period 12 and [n] = 1 - sin for 0 <n<11.
Linear systems 2 Sketch the following signals, (a) u(n +2) - u(n-3) (b) 3.3-3 (d) (c)...
Linear systems 2
Sketch the following signals, (a) u(n +2) - u(n-3) (b) 3.3-3 (d) (c) nn(n) , for =-0.9 and γ = 1.1.
Q1) For the periodic signals x() and ) shown below: x(t) YCO y(t) a) Find the exponential Fourier...
Q1) For the periodic signals x() and ) shown below: x(t) YCO y(t) a) Find the exponential Fourier series for x(t) and y). b) Sketch the amplitude and phase spectra for signal x(). c) Use Parseval's theorem to approximate the power of the periodic signal x() by calculating the power of the first N harmonics, such that the strength of the Nth harmonic is 10% or more of the power of the DC component.
Q1) For the periodic signals x()...
1. Determine whether or not each of the following signals is periodic. In case a signal...
1. Determine whether or not each of the following signals is periodic. In case a signal is periodic, specify its period. sin(411t n+2) • cos? (in) . Can we use the formula, f = min ( - 14|1 - 4 + l{\), to find the period of sin(fnt n) or cos(2ft n)?
signal & system cours Signals and Systeme Q2 b) Given two signals x1(n)=[-1 2 0 -2...
signal & system cours
Signals and Systeme Q2 b) Given two signals x1(n)=[-1 2 0 -2 l) and x3[n] = [5 -4 0 4 -51 (5 Marks) Prove that sum of two signals is an odd signal. Prove that the product of two signals is an even signal. 1) 1 Signals and Systems Q5 b) How can you derive the Discrete-Time Fourier transform from the z-transform? (5 marks)
JU Q1. Sketch the following SIGNALS and determine for each whether it is: Periodic or aperiodic. If periodic, • Even, odd, or neither. If it is neither, specify To. decompose it into even part Ev{x} Energy signal, power signal, or and odd part Od{x} and sketch them. neither. Find the total energy E. and average power PC- 12 -1<n<1 (a) xa n] = lo otherwise (b) xo(t) = xy(t) + x2(t), where x,(t) and x2(t) are the signals shown below:...
3. Determine whether or not each of the following signals is periodic. If a signal is periodic fundamental period x(t)=cos(2t+4 Determine whether the following signals are Energy signals or Power signals a. 4.
HW 11.5 Consider the periodic "square wave" signal defined by x(t)- u(t - 4k) - u(t - 2-4k) (a) Sketch x(t) (b) Sketch g(t) = x(t)-0.5 (c) Sketch |x(jw)|. Hint: First determine the Fourier series expansion of x() (d) Sketch IG(Go)
HW 11.5 Consider the periodic "square wave" signal defined by x(t)- u(t - 4k) - u(t - 2-4k) (a) Sketch x(t) (b) Sketch g(t) = x(t)-0.5 (c) Sketch |x(jw)|. Hint: First determine the Fourier series expansion of x() (d)...
Problem (3) a) A periodic square wave signal x(t) is shown below, it is required to answer the below questions: x(t) 1. What is the period and the duration of such a signal? 2. Determine the fundamental frequency. 3. Calculate the Trigonometric Fourier Series and sketch the amplitude spectrum and phase spectrum of the signal x(t) for the first 5 harmonics. b) Find the Continuous Time Fourier Series (CTFS) and Continuous Time Fourier Transform (CTFT) of the following periodic signals...
2. Determine the FS coefficients for each of the following DT periodic signals. (a) x[n] = sin(2 /3) cos(in/2) (b) x[n] periodic with period 4 and x[n] = 1 - sin n for 0 <n<3. (e) a[n) periodic with period 12 and [n] = 1 - sin for 0 <n<11.
Linear systems 2
Sketch the following signals, (a) u(n +2) - u(n-3) (b) 3.3-3 (d) (c) nn(n) , for =-0.9 and γ = 1.1.
Q1) For the periodic signals x() and ) shown below: x(t) YCO y(t) a) Find the exponential Fourier series for x(t) and y). b) Sketch the amplitude and phase spectra for signal x(). c) Use Parseval's theorem to approximate the power of the periodic signal x() by calculating the power of the first N harmonics, such that the strength of the Nth harmonic is 10% or more of the power of the DC component.
Q1) For the periodic signals x()...
1. Determine whether or not each of the following signals is periodic. In case a signal is periodic, specify its period. sin(411t n+2) • cos? (in) . Can we use the formula, f = min ( - 14|1 - 4 + l{\), to find the period of sin(fnt n) or cos(2ft n)?
signal & system cours
Signals and Systeme Q2 b) Given two signals x1(n)=[-1 2 0 -2 l) and x3[n] = [5 -4 0 4 -51 (5 Marks) Prove that sum of two signals is an odd signal. Prove that the product of two signals is an even signal. 1) 1 Signals and Systems Q5 b) How can you derive the Discrete-Time Fourier transform from the z-transform? (5 marks)
Most questions answered within 3 hours.
-
Which unbiased estimator is relatively more efficient?
Unbiased Estimator 1:
Mean = 50 Variance = 7...
asked 30 seconds from now -
Which of the following is a reason for classifying organic
molecules by functional group?
a. The...
asked 3 minutes ago -
If you have studied Toyota’s way of problem solving and using
the A3 Report, how can...
asked 8 minutes ago -
(a) What is the escape speed on a spherical asteroid whose
radius is 585 km and...
asked 23 minutes ago -
LinkedIn Discussion Questions: If you wanted to buy
LinkedIn’s stock would you be willing to pay...
asked 24 minutes ago -
A 2500 kg car accelerates from rest to a velocity of 30.0 m/s in
8.00 seconds....
asked 28 minutes ago -
9) A company that you are interested in has an ROE of 20%. Its
dividend payout...
asked 35 minutes ago -
1.100 mol phosphorus pentachloride, PCl5 were placed in an
empty, sealed, 2.00 L container at room...
asked 39 minutes ago -
In python Complete the function mostCommonCount() so that will
accept a list of names as a...
asked 42 minutes ago -
H 2 O(g) 1 CO 2 (g) N C 6 H 12 O 6 (s) 1...
asked 45 minutes ago -
1) Suppose it is known that 4.09% of the population suffers from
a particular disease. A...
asked 46 minutes ago -
A long, straight wire carrying a current of I1 =5.0 A
perpendicular to the xy plane...
asked 55 minutes ago