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iw_intel8260_localization
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validation on orientation of device

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HappyZ 2018-02-01 22:44:10 -06:00
parent 2742e2fe10
commit 514d27ca6e
1 changed files with 105 additions and 0 deletions
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calibration_rotation_comparison.m Normal file
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clear all;
folder = 'calibration_data/new_indoor/';
files = dir(folder); files = files(3:end); % remove . and ..
files_left = files;
files_right = files;
targets = zeros(1, length(files));
for i = length(files):-1:1
if contains(files(i).name, 'left') || contains(files(i).name, 'right')
if contains(files(i).name, 'left')
files_right(i) = [];
% remove only once
targets(i) = sscanf(files(i).name, 'result_%dcm.txt');
else
targets(i) = [];
files_left(i) = [];
end
else
files_right(i) = [];
files_left(i) = [];
targets(i) = [];
end
end
for i = length(files):-1:1
target = sscanf(files(i).name, 'result_%dcm.txt');
if isempty(target)
continue
end
if ~ismember(target, targets) || ...
contains(files(i).name, 'left') || ...
contains(files(i).name, 'right') || ...
contains(files(i).name, 'ap') || ...
contains(files(i).name, 'down') || ...
contains(files(i).name, 'up')
files(i) = [];
end
end
[targets, orderI] = sort(targets);
files_left = files_left(orderI);
files_right = files_right(orderI);
files = files(orderI);
medians = zeros(3, length(targets));
figure(1); clf;
subplot(2, 1, 1); hold on;
for i = 1:length(targets)
% normal
filename = [folder, files(i).name];
data = readtable(filename, 'ReadVariableNames', 0);
if isempty(data)
continue
end
data = data(2:end, :);
rawDist_ori = str2double(table2array(data(:, 5)))';
rawDistVar_ori = str2double(table2array(data(:, 6)))';
rssi_ori = str2double(table2array(data(:, 7)))';
time_ori = str2double(table2array(data(:, 8)))';
medians(1, i) = median(rawDist_ori);
% left
filename = [folder, files_left(i).name];
data = readtable(filename, 'ReadVariableNames', 0);
if isempty(data)
continue
end
data = data(2:end, :);
rawDist_left = str2double(table2array(data(:, 5)))';
rawDistVar_left = str2double(table2array(data(:, 6)))';
rssi_left = str2double(table2array(data(:, 7)))';
time_left = str2double(table2array(data(:, 8)))';
medians(2, i) = median(rawDist_left);
% right
filename = [folder, files_right(i).name];
data = readtable(filename, 'ReadVariableNames', 0);
if isempty(data)
continue
end
data = data(2:end, :);
rawDist_right = str2double(table2array(data(:, 5)))';
rawDistVar_right = str2double(table2array(data(:, 6)))';
rssi_right = str2double(table2array(data(:, 7)))';
time_right = str2double(table2array(data(:, 8)))';
medians(3, i) = median(rawDist_right);
% plot rssi relation
subplot(2, 1, 1);
scatter(rawDist_ori, rssi_ori, 'ro');
scatter(rawDist_left, rssi_left, 'cs');
scatter(rawDist_right, rssi_right, 'b*');
end
subplot(2, 1, 1);
title('Signal propagation variation');
legend('Face2face', 'Left2Face', 'Right2Face', 'Location', 'best');
xlabel('Reported Raw Distance (cm)');
ylabel('RSSI (dBm)');
subplot(2, 1, 2); hold on;
title('Validation: No Significant Variation in Orientation :)');
scatter(targets, medians(1, :), 'ro', 'LineWidth', 2);
scatter(targets, medians(2, :), 'cs', 'LineWidth', 2);
scatter(targets, medians(3, :), 'b*', 'LineWidth', 2);
legend('Face2face', 'Left2Face', 'Right2Face', 'Location', 'best');
xlabel('Groundtruth (cm)');
ylabel({'(Median) Reported', 'Raw Distance (cm)'});