Connexions module: m12576 1
Car Simulation Using Matlab
∗
Lynn Le
This work is produced by The Connexions Project and licensed under the
Creative Commons Attribution License
†
Abstract
This module explains how the car simulation is implemented in Matlab.
1 Car Simulation
The car program simulates the reection and subsequent Doppler shift of the signal coming o the car. The
program will take in a certain frequency (measured in GHz) and the angle at which the car is traveling
relative to the police vehicle. The car program essentially takes the Gaussian pulse generated by the radar
gun, and uses the Fourier transform to compute the shifted pulse from the car, adds in the unshifted reection
from the background, then adds in random noise from these frequency ranges. This results in a frequency
spectrum. An example is shown below.
∗
Version 1.2: Dec 23, 2004 11:24 am US/Central
†
http://creativecommons.org/licenses/by/2.0/
http://cnx.org/content/m12576/1.2/
