gusucode.com > Beam Alignment and Tracking for Autonomous Vehicular Communication using IEEE 802.11ad-based Radar > mmWave-V2I-Radar-master/Guillem/misalignment_sectortime.m
function [ tindex_lost, sector_lost ] = misalignment_sectortime( beamwidth, dist_max, ang_max, avg_velocity, std_deviation_velocity, number_of_samples, doppler_res,t) % This function returns the index of the vector t where %misalignment happened (ts) and the sector where misalingment happended (s) %% Calculation of the sectors %sector_limits indicates each border between two sectors sector_limits = calc_sectors(beamwidth, dist_max, ang_max); %% Velocities and error data generation %velocities are created with a Gaussian distr with mean=avg_velocity and %standard deviation = std_deviation_velocity. Doppler resolution is %distributed uniformly from 0 to Doppler resolution %velocity_data returns two vectors with 'number_of_samples' samples of the %random generated velocities and errors [velocities, errors] = velocity_data(avg_velocity, std_deviation_velocity, number_of_samples, doppler_res); %Error is added to the velocities velocities_error=velocities+errors; %% Position calculation on every time instant %positions on every time instant for both the estimated and real velocity are calculated positions=velocities*t; positions_error=velocities_error*t; %% Calculation of the sector each car is in every time instant for both real and estimated velocities [sectors, sectors_error] = sectors_t( positions, positions_error, sector_limits, velocities); %Misalingment is calculated comparing the sector of each position for the %real and estimated velocity err=(sectors==sectors_error); %% Calculation of the sector and the instant of the first misalignment %misalingnent_instants returns the index in vector t where the first %misalingment happened and the sector where first misalignment happened. %The sector returned for each far is the one where the car was EXPECTED to %be not the one where actually is [ tindex_lost, sector_lost ] = misalignment_instants( err, sectors_error, t, sector_limits ); end