FFT_Hanning_window_no_DC

# FFT_Hanning_window_no_DC - Sample Excel Spreadsheet...

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Unformatted text preview: Sample Excel Spreadsheet - Generating an FFT with a Hanning Window (for a sine wave function) J. M. Cimbala 90 Hz 128 1 volts (or any other units) 20 Hz 0 radians Calculated values: 1.42 s 0.01 s 0.7 Hz 45 Hz 64 0 (use 20 points per period of the true signal) number of data points for plotting true signal = 568.89 Note: FFT does not automatically update! (also divide first one by 2) (also divide first one by 2) frequency (Hz) 0.984807753012231 0.01-8.4362708626947E-004 1 0.01 0.98 0.7 0.986495007184768-1.0169 0.02-8.50022073260159E-004+1.6195 2 0.02 0.34 1.41 0.991582349650346-2.0403 0.02-8.69447197758598E-004+3.2793 3 0.03-0.87 2.11 1.00014748090696-3.07682 0.02 0.01-9.02639910711563E-004+5.0215 4 0.04-0.64 2.81 1.01232317180643-4.13342 0.02 0.01-0.01-9.5088777783531E-004+6.89304 5 0.06 0.64 3.52 1.02830241381723-5.21759 0.02 0.01 0.01-1.01612334787129E-003+8.9477 6 0.07 0.87 4.22 1.04834614921952-6.33755 0.02 0.02 0.02-1.10107253521991E-003+1.1250 7 0.08-0.34 4.92 1.07279417476269-7.50252 0.02 0.03-0.01-1.20947538326656E-003+1.3880 8 0.09-0.98 5.63 1.10208010183892-8.72300 0.02 0.04-0.04-1.3464090895335E-003+1.69386 9 0.1 6.33 1.13675166527328-0.10011 0.02 0.05-1.5187603725281E-003+2.05571 10 0.11 0.98 7.03 1.17749827019776-0.11381 0.02 0.06 0.06-1.73592199936942E-003+2.4909 11 0.12 0.34 7.73 1.22518856311972-0.12851 0.02 0.07 0.02-2.01083438060369E-003+3.0230 12 0.13-0.87 8.44 1.28092219356409-0.14442 0.02 0.08-0.07-2.36157187701481E-003+3.6845 13 0.14-0.64 9.14 1.34610211151653-0.16181 0.02 0.1-0.06-2.81381204195854E-003+4.5212 14 0.16 0.64 9.84 1.42253727763679-0.18100 0.02 0.11 0.07-3.40477788435839E-003+5.5992 15 0.17 0.87 10.55 1.5125915552945-0.202437 0.02 0.13 0.11-4.18971764915831E-003+7.0162 16 0.18-0.34 11.25 1.61940470354883-0.22667 0.03 0.15-0.05-5.25291695018837E-003+8.9213 17 0.19-0.98 11.95 1.74722951960392-0.25448 0.03 0.16-0.16-6.72714819962921E-003+1.1548 18 0.2 12.66 1.90196292845754-0.28691 0.03 0.18-8.82959706415134E-003+1.5282 19 0.21 0.98 13.36 2.09201472556776-0.32545 0.03 0.2 0.2-1.193182653477E-002+2.077623 20 0.22 0.34 14.06 2.32979382881707-0.37230 0.04 0.22 0.08-1.67049281395144E-002+2.9215 21 0.23-0.87 14.77 2.63439264462442-0.43083 0.04 0.24-0.21-2.44448626584587E-002+4.2883 22 0.24-0.64 15.47 3.03677091106562-0.50652 0.05 0.26-0.17-3.78758542460442E-002+6.6586 23 0.26 0.64 16.17 3.590652594491-0.6088501 0.06 0.29 0.18-6.33998957571908E-002+1.1161 24 0.27 0.87 16.88 4.39813386094516-0.75581 0.07 0.31 0.27-0.118570913523678+2.08909552 25 0.28-0.34 17.58 5.67989878149403-0.98635 0.09 0.33-0.11-0.264029837306617+4.65409677 0.01 26 0.29-0.98 18.28 8.01778305126939-1.40304 0.13 0.35-0.35-0.812310830159638+0.14321930 0.02 27 0.3 18.98 13.6049106416833-2.39261 0.22 0.38-6.29515966479988+1.109995015 0.16 28 0.31 0.98 19.69 44.3726768912967-7.82217 0.7 0.4 0.4 27.6985325259057-4.8840086172 0.72 29 0.32 0.34 20.39-35.6536869627127+6.2843 0.57 0.43 0.15-25.7201166400089+4.535141927 0.67 30 0.33-0.87 21.09-12.7995842566864+2.2502-12....
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