EE 301 Lecture Notes - Lecture 4: Negative Relationship, Row And Column Vectors, Caesium
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% code sig #3 subplot(3,1,3) stairs(code3) axis([1,100, 1. 5,1. 5]) xlabel("time"); ylabel("binary values"); title("code sig #3, in:204, chips:10"): mean of code1: 0. 2000. The correlation for the code 3 signal with itself is symmetric with the maximum value of correlation equal to 100 which is actually the same as the energy of code. Cs2 is larger than cs2 which means it should have more energy due to the longer sequence and therefore a smaller chance for error. Simply by inspection, we can identify the reflected pulses in the received signal. We observe that the distinct peak pulse values are above 0. b. There are four major peaks that are visible: (809,39. 13), (3180,62. 19), (4067,50. 93) and (4434,59. 53) Distance= 809 * 10^-7 * 3 * 10^8 = 24270 m c. c=18. 7500. The 118 columns represent the 118 samples that are greater than the tv of 18. 75, and also represent the number of false alarms (again 118).
