Problem 1 (12 points) A signal s(t) is transmitted from an antenna at point A to the antenna of a base station at point B. Suppose the two antennas are dA meters apart. The antenna of the base station receives the signal s(t) and at least one more copy of it due to reflections of the signal from buildings, trees etc. Consider for simplicity, only once such reflection, denoted by s.(t). Because s-(t) travels at a larger distance, it will be a delayed version of s(t) i.e. sr(t) = s(t - to) for some to > 0 that depends on the length of the reflection path. Let s(t) 3sin(2x Ft) where F=1000Hz. Let da = 1000 meters, de = 1010 meters and for simplicity, consider speed of propagation, c = 300,000,000 meters/sec. In MATLAB, plot(using subplot), the following signals: i) s(t) at point A ii) s(t) which is the signal that the base station antenna receives iii) the reflected signal, s, at the base station Problem 1 (12 points) A signal s(t) is transmitted from an antenna at point A to the antenna of a base station at point B. Suppose the two antennas are dA meters apart. The antenna of the base station receives the signal s(t) and at least one more copy of it due to reflections of the signal from buildings, trees etc. Consider for simplicity, only once such reflection, denoted by s.(t). Because s-(t) travels at a larger distance, it will be a delayed version of s(t) i.e. sr(t) = s(t - to) for some to > 0 that depends on the length of the reflection path. Let s(t) 3sin(2x Ft) where F=1000Hz. Let da = 1000 meters, de = 1010 meters and for simplicity, consider speed of propagation, c = 300,000,000 meters/sec. In MATLAB, plot(using subplot), the following signals: i) s(t) at point A ii) s(t) which is the signal that the base station antenna receives iii) the reflected signal, s, at the base station