In this mini project, you would design an acoustic echo-location sensor. Consider a 1D array of soundspeaker, receiver, and reflector at locations 0, 1, and 1.2 meters respectively on the x-axis. The receiverwould receive direct line of sight signals from the speaker as well as the reflections from the reflector. Thedirect path and the reflected path are separated by 40cm. The channel impulse response (CIR) wouldhave two peaks separated by 40cm. Your goal would be to design a system that measures the distanceof the reflector from the receiver. The project would be evaluated based on a demo. The CIR peakscorresponding to direct and reflected path would move relative to each other if the reflector is moved.The echoes can be detected from the CIR. You need to design a training sequence at the transmitter tobe able to detect the CIR. You can use your own smartphones as transmitters and receivers to generateand receive the sound signals.