MIT16_36s09_quiz02

MIT16_36s09_quiz02 - MIT OpenCourseWare http:/ocw.mit.edu...

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MIT OpenCourseWare http://ocw.mit.edu 16.36 Communication Systems Engineering Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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Name: 16.36 Communication Systems Engineering Quiz – 2 April 23, 2009 Part 1: Quick Questions (30 points; 5 points each) Please provide brief explanations for your answers in order to receive full credit. 1. In a binary PAM modulation system, the length of time of a pulse is reduced from 1 second to 0.25 seconds. How much should the amplitude be increased to maintain the same probability of error? 2. In a satellite communication system, there is an opportunity to use a new parabolic antenna with twice the diameter of the old antenna. What is the expected increase of the data rate? Assume free space loss.
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Name: 3. What is the minimum distance (d min ) of the (7,3) code defined by the following generator matrix? G = 1001101 0101011 0011111 4. What is generator matrix corresponding to the following CRC feedback shift register implementation?
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This note was uploaded on 11/07/2011 for the course AERO 16.38 taught by Professor Alexandremegretski during the Spring '09 term at MIT.

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MIT16_36s09_quiz02 - MIT OpenCourseWare http:/ocw.mit.edu...

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