The numbers in parentheses indicate the number of marked items (1 mark each). Pre-Labs Lab 3 (2) - uploaded spreadsheet - PDF spreadsheet with correct columns Labs Lab 1 (4) - a plot of amplitude vs time - a histogram of the amplitude and a fit Rayleigh - a log-log plot of path loss vs distance - a path loss exponent that matches the curve above Lab 2 (6) - GUI captures showing the four test cases (4) - center frequency of 222.5 - frequency shifted to 223.5 - longer period (narrower spacing of harmonics) - disabling interpolator filter (replicated spectrum) - answers to questions (2) - result is sinusoid at sum of frequencies - period is fs/2^N Lab 3 (6) - two GRC flowgraphs (2) - screen capture - spreadsheet with correct Eb/No and BER - plot showing BER with/without FEC - correct calculation of coding gains Lab 4 (2) - reasonable code - screen capture (completion mark was based on demonstration in the lab) Lab 5 (3) - screen capture - four spectra (N=128, nc=32, fs=1e6; N=>256; nc=>64; fs=>2 MHz) - three reasonable explanations of how the spectra changed the bandwidths should be: 1: 32/128 * 1 MHz = 250 kHz 2: 32/256 * 1 MHz = 125 kHz 3: 64/128 * 1 MHz = 500 kHz 4: 32/128 * 2 MHz = 500 kHz Midterm 1 (10) Q1: (5) - correct lambda - correct GT, GR - correct equation - correct answer (2) Q2: (5) - normalized profile (1) - correct excess delay (1 for method, 1 for answer) (2) - correct delay spread (1 for method, 1 for answer) (2) Midterm 2 (9) Q1: (4) - correct method (2) - correct answer (2) Q2: (5) - right n,k (1) - deriving G (2) - correct answer (2) Final Exam (27) Q1: (4) - uses Friis equation - correct calculation of wavelength - correctly solves for distance - correct answer Q2: (2) - correctly sets up problem - correct answer Q3: (3) - uses Gaussian CDF - correctly computes number of standard deviations - correct result Q4: (2) - correct equation - correct answer Q5: (5) - correct method to calculate duration - correct duration w/o guard time - correct duration w/ guard time - correct bits per symbol - correct bit rate Q6: (6) - correctly computes each codewords (4*0.5) = 2 - correctly computes each distance (6*0.5) = 3 - correctly finds & states dmin = 1 Q7: (2) - correct ACP in dBm - correct frequencies Q8: (3) - use correct cascade equation - convert noise figure and loss to linear units & back - correct answer