Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem 1: Sketch the Fourier transform of a rectangular pulse of amplitude 10 V and width 0.1 second that is centered on the zero time axis. Indicate the amplitude at dc and for the first spectral peak. Also indicate the frequency of the first spectral peak and points of zero amplitude. 

problem 2: The signal exp(-3t) u(t) is delayed 0.1 seconds and subtracted from itself. What is the Fourier Transform of the output signal? Draw a block diagram of the system. What is the Transfer Function of the system, H(f)?  

problem 3: What is the autocorrelation function of a rectangular pulse with an amplitude of 5 volts that exists between t = 0 and t = 10 seconds? Sketch your answer (a graphical solution is OK).

problem 4: A signal, x(t) = 2 sin (10π 106 t), is applied to the input of an RC lowpass filter with a cutoff frequency of 1 MHz. What is the output signal? How many dB is the output signal relative to the input signal? 

problem 5: Find out the instantaneous frequency of a signal v(t) = 5 cos (10πt + cos 5πt) at t = 10 seconds.

problem 6: A 100 MHz carrier is frequency modulated by a 1 kHz sinusoidal signal and has a peak frequency deviation of 2 kHz. Draw the spectrum of this signal. Show the frequency and amplitude (relative to the unmodulated carrier level) of at least the first 2 sidebands.

problem 7: Sketch the constellation patterns (magnitude and phase) of a BPSK, a QPSK and an 8PSK digitally modulated signal. If all three types of signals occupy the same bandwidth, what is the ratio between their relative maximum information transmission rates?

1774_constellation patterns.jpg

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M96042

Have any Question? 


Related Questions in Electrical & Electronics

In a leaky bucket used to control liquid flow how many

In a leaky bucket used to control liquid flow, how many gallons of liquid are left in the bucket if the output rate is 5 gal/min, there is an input burst of 100 gal/min for 12 s, and there is no input for 48 s?

1 in kademlia assume m 4 and active nodes are n4 n7 and

1. In Kademlia, assume m = 4 and active nodes are N4, N7, and N12. Where is the key k3 stored in this system? 2. In Chord, assume the size of the identifier space is 16. The active nodes are N3, N6, N8, and N12. Show the ...

Consider a plane-strain square element with unit depth as

Consider a plane-strain square element with unit depth as shown in the figure. Use the St. Venant-Kirchhoff isotropic material model with two Lame's constants λ and μ. A uniformly distributed force T x  (force per area) ...

1 describe briefly your concept of a scalar field and

1. Describe briefly your concept of a scalar field and illustrate with an example. 2. Describe briefly your concept of a vector field and illustrate with an example. 3. How do you depict pictorially the gravitational fie ...

A liquid of density rho flows through a sluice gate as

A liquid of density ρ flows through a sluice gate as shown. The upstream and downstream flows are uniform and parallel, so that the pressure variations at stations 1 and 2 may be considered hydrostatic. (a) Determine the ...

Given an rtp packet with the first 8 hexadecimal digits as

Given an RTP packet with the first 8 hexadecimal digits as (86032132)16, answer the following questions: a. What is the version of the RTP protocol? b. Is there any padding for security? c. Is there any extension header? ...

1 what is snells law2 what is meant by the plane of

1. What is Snell's law? 2. What is meant by the plane of incidence? Distinguish between the two different linear polarizations pertinent to the derivation of the reflection and transmission coefficients for oblique incid ...

You will write a paper about electrical engineering

You will write a paper about electrical engineering standards as they apply to communications. The topical coverage may be as specific or as broad as you want. You may choose any particular communications standard to wri ...

Each round in a block cipher should be invertible to make

Each round in a block cipher should be invertible to make the whole block invertible. Modern block ciphers use two approaches to achieve this. In the first approach, each component is invertible; in the second approach s ...

1 what is the permittivity of free space what are its

1. What is the permittivity of free space? What are its units? 2. Describe the electric field due to a point charge. 3. How do you find the electric field intensity due to a continuous charge distribution? 4. How is curr ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen