Explain digital communication systems

Assignment Help Electrical Engineering

Reference no: EM131312478

In digital communication systems, transmission of digital data is encoded using bandlimited pulses in order to utilize the channel bandwidth efficiently. Unfortunately, bandlimited pulses are nontimelimited; they have infinite duration, which causes pulses representing successive digits to interfere and possibly cause errors. This difficulty can be resolved by shaping a pulse p(t) in such a way that it is bandlimited yet causes zero interference at the sampling instants. To transmit R pulses/second, we require a minimum bandwidth R/2 Hz (see Prob. 3.1-11). The bandwidth of p(t) should be R/2 Hz, and its samples, in order to cause no interference at all other sampling instants, must satisfy the condition

where T = 1/R . Because the pulse rate is R pulses per second, the sampling instants are located at intervals of 1/R s. Hence, the preceding condition ensures that a pulse at any instant will not interfere with the amplitude of any other pulse at its center. Find p(t). Is p(t) unique in the sense that no other pulse satisfies the given requirements?

Reference no: EM131312478

Questions Cloud

Describe the concept of conflict : Explore the value of regarding problems as opportunities for teams.- Create a case study that involves a problem that a team could face.

Write a short note on finance in hospitals : 1. Write a short note on Finance in Hospitals? 2. Describe the Negotiating system for Hospitals rates?

Prepare an analysis of how financial management techniques : Using each of the four categories of risk, develop an analysis of how financial management techniques or policies can be used to mitigate each of the risks.

Basis of an annual life-cycle cost analysis : The U.S. Army received two proposals for a turnkey design-build project for barracks for infantry unit soldiers in training. Proposal A involves an off-the-shelf “bare-bones” design and standard grade construction of walls, windows, doors, and other ..

Explain digital communication systems : Hence, the preceding condition ensures that a pulse at any instant will not interfere with the amplitude of any other pulse at its center. Find p(t). Is p(t) unique in the sense that no other pulse satisfies the given requirements?

Compatibility with current systems and work flow processes : You will need to include information such as cost, compatibility with current systems and work flow processes, functionality, ease of use, and end user support.

Two firms using the appropriate methodology : Calculate the value of the following two firms using the appropriate methodology. Earnings for the firm with a cash flow for the next 5 years are $500, $700, $1000, $1200, and $500. The firm then dissolves (that is its cash flow after 5 years is zero..

Discuss the risks the delta airlines company faces : Using the annual report from the company that you have selected for your Final Project, discuss the risks the company faces and the actions they take to mitigate those risks.

False imprisonment and malicious prosecution : Explain the difference between false imprisonment and malicious prosecution? In what business situation does false imprisonment most frequently arise?

User Account

All Pages