Hw-4 - The University of Akron Engineering Faculty Electrical Computer Department Digital Signal Processing I Dr Roberto J Acosta Course 4400:598

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The University of Akron Engineering Faculty Electrical & Computer Department Digital Signal Processing I Dr. Roberto J. Acosta Course # 4400:598 Homework # 4 DSP I Student Nam : Sriram Yarlagadda Student Number : 2196944 Due Date : 30 Jan 2009 Grade :
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SOLUTION Step #1: Defining the Finite Length Sequence Sec 1 Hz 1 N 128 N point Sequence dB 1 dBW 1 f s 65 Sampling Frequency -Hz f s N 0.508 Hz Analog spectrum Resolution f s 2 32.5 Maximum Positive Frequency N 2 1 65 Positive samples (Independent samples) Amp READPRN "C:\Documents and Settings\sy19\Desktop\SatSig.txt" ( ) n 0 N 1 bin 0 N 1 k 0 N 1 freq bin bin f s N x k 2 N k i 1
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freq bin 0 0.508 1.016 1.523 2.031 2.539 3.047 3.555 4.063 4.57 5.078 5.586 6.094 6.602 7.109 ... x k 0 0.049 0.098 0.147 0.196 0.245 0.295 0.344 0.393 0.442 0.491 0.54 0.589 0.638 0.687 ... f bin are the bin freequencies Amp 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -0.301 -1.028 5.228 -1.74 -3.339 0.11 -3.855 -1.586 1.652 -0.512 -0.827 -0.941 2.339 -2.634 -3.489 ... 0 50 100 6 4 2 0 2 4 6 Amp n n
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STEP 2: DFT of x[n] X k 0 N 1 m Amp m e i x m k P_X k 20 log X k 20 log X k 80 if 80 otherwise 0 20 40 60 0 10 20 30 40 DFT-Leakage Effect Analog Frequency-Hz Power in dbw P_X k k f s N
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This note was uploaded on 02/20/2011 for the course EE EE 646 taught by Professor Dr.robertojacousta during the Spring '10 term at The University of Akron.

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Hw-4 - The University of Akron Engineering Faculty Electrical Computer Department Digital Signal Processing I Dr Roberto J Acosta Course 4400:598

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