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CSCS.m
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classdef CSCS < matlab.apps.AppBase
% Properties that correspond to app components
properties (Access = public)
UIFigure matlab.ui.Figure % Single ...
UISot matlab.ui.control.UIAxes % Signal ...
UISotdb matlab.ui.control.UIAxes % Signal ...
UISt matlab.ui.control.UIAxes % Radar E...
UIStc matlab.ui.control.UIAxes % Combina...
TabGroup matlab.ui.container.TabGroup % Chirp S...
Tab matlab.ui.container.Tab % Chirp Set
LabelSlider matlab.ui.control.Label % Bandwid...
Bw matlab.ui.control.Slider % [0 100]
disp_B matlab.ui.control.NumericEditField % [1 100]
Label matlab.ui.control.Label % Pulse d...
Tp matlab.ui.control.Slider % [1 50]
disp_T matlab.ui.control.NumericEditField % [1 50]
Label2 matlab.ui.control.Label % Samplin...
Fsp matlab.ui.control.Slider % [2 12]
disp_Fs matlab.ui.control.NumericEditField % [2 12]
Label3 matlab.ui.control.Label % x B
Button_Run matlab.ui.control.Button % Run
LabelKnob matlab.ui.control.Label % SNR =
KnobAWGN matlab.ui.control.Knob % [1.0000...
dispAWGN matlab.ui.control.NumericEditField % [1.0000...
Label4 matlab.ui.control.Label % Kaiser ...
swKaiser matlab.ui.control.Switch % Off, On
Label5 matlab.ui.control.Label % Alpha =
KnobKaiser matlab.ui.control.Knob % [0 3]
dispKaiser matlab.ui.control.NumericEditField % [0 3]
LampAutoUpdate matlab.ui.control.Lamp
swAutoUpdate matlab.ui.control.Switch % Off, On
Label6 matlab.ui.control.Label % Auto Run
LabelSwitch matlab.ui.control.Label % White G...
swAWGN matlab.ui.control.Switch % Off, On
LampAWGN matlab.ui.control.Lamp
LampKaiser matlab.ui.control.Lamp
LabelDropDown matlab.ui.control.Label % Waveform
swChirp matlab.ui.control.DropDown % Up-Chir...
Tab2 matlab.ui.container.Tab % Targets
Label28 matlab.ui.control.Label % Distanc...
swTarget1 matlab.ui.control.ToggleSwitch % Off, On
LampTarget1 matlab.ui.control.Lamp
swTarget2 matlab.ui.control.ToggleSwitch % Off, On
LampTarget2 matlab.ui.control.Lamp
swTarget3 matlab.ui.control.ToggleSwitch % Off, On
LampTarget3 matlab.ui.control.Lamp
swTarget4 matlab.ui.control.ToggleSwitch % Off, On
LampTarget4 matlab.ui.control.Lamp
swTarget5 matlab.ui.control.ToggleSwitch % Off, On
LampTarget5 matlab.ui.control.Lamp
swTarget6 matlab.ui.control.ToggleSwitch % Off, On
LampTarget6 matlab.ui.control.Lamp
Panel matlab.ui.container.Panel
Label27 matlab.ui.control.Label % m
Label26 matlab.ui.control.Label % m
Label25 matlab.ui.control.Label % m
Label24 matlab.ui.control.Label % m
Label23 matlab.ui.control.Label % m
Label22 matlab.ui.control.Label % m
Label21 matlab.ui.control.Label % Target 6
InputTarget6 matlab.ui.control.NumericEditField % [1 Inf]
Label20 matlab.ui.control.Label % Target 5
InputTarget5 matlab.ui.control.NumericEditField % [1 Inf]
Label19 matlab.ui.control.Label % Target 4
InputTarget4 matlab.ui.control.NumericEditField % [1 Inf]
Label18 matlab.ui.control.Label % Target 3
InputTarget3 matlab.ui.control.NumericEditField % [1 Inf]
LabelNumericEditField2 matlab.ui.control.Label % Target 2
InputTarget2 matlab.ui.control.NumericEditField % [1 Inf]
LabelNumericEditField matlab.ui.control.Label % Target 1
InputTarget1 matlab.ui.control.NumericEditField % [1 Inf]
LabelSlider2 matlab.ui.control.Label % Nadir
gr0 matlab.ui.control.Slider % [50 1000]
Label29 matlab.ui.control.Label % Near Range
Label30 matlab.ui.control.Label % Targets
Lamp matlab.ui.control.Lamp
Lamp2 matlab.ui.control.Lamp
Lamp3 matlab.ui.control.Lamp
Lamp4 matlab.ui.control.Lamp
Lamp5 matlab.ui.control.Lamp
Lamp6 matlab.ui.control.Lamp
LabelSlider3 matlab.ui.control.Label % Height
h matlab.ui.control.Slider % [400 1000]
LabelNumericEditField3 matlab.ui.control.Label % Angle o...
Theta matlab.ui.control.NumericEditField % [10 45]
Label31 matlab.ui.control.Label % [degree]
disp_NearRange matlab.ui.control.NumericEditField % [70 1000]
Label32 matlab.ui.control.Label % [km]
Label33 matlab.ui.control.Label % [km]
disp_h matlab.ui.control.NumericEditField % [400 1000]
KnobTheta matlab.ui.control.Knob % [10 45]
Label34 matlab.ui.control.Label % Set Rad...
Tab3 matlab.ui.container.Tab % Hints
Label13 matlab.ui.control.Label % Author:...
Label14 matlab.ui.control.Label % Nationa...
Label15 matlab.ui.control.Label % Graduat...
Label16 matlab.ui.control.Label % gw.chen...
Label17 matlab.ui.control.Label % Version...
Label35 matlab.ui.control.Label % Step 1:...
TextArea matlab.ui.control.TextArea % First, ...
Label36 matlab.ui.control.Label % Step 2:...
TextArea2 matlab.ui.control.TextArea % Second,...
Label7 matlab.ui.control.Label % ĄXĄXĄXĄXĄXĄX ...
UIStm matlab.ui.control.UIAxes % Multipl...
end
% GW
% 2016-8-5
properties (Access = private)
autoUpdate
end
methods (Access = private)
function updatePlot(app)
if app.Bw.Value == 0 % chirp frequency modulation bandwidth
B = 1*1e6;
else
B = app.Bw.Value*1e6;
end
if app.Tp.Value == 0 % pulse duration
T = 1*1e-6;
else
T = app.Tp.Value*1e-6;
end
Fsn = app.Fsp.Value;
Fs = Fsn*B; % sampling frequency
Ts = 1/Fs; % sampling time per grid
N = T/Ts; % grid points
c = 3e8; % light speed
t = linspace(0, T, N);
[St, Sot, Sotdb, tm, Srt, Stc, Sotc, Sotcdb] = chirp(app);
% -- Plot figures -- %
% s(t)
plot(app.UISt, t*1e6, real(St));
xlim(app.UISt, [t(1)*1e6, t(end)*1e6]);
ylim(app.UISt, [-max(abs(St))-0.5, max(abs(St))+0.5]);
% s_output(t)
plot(app.UISot, t*1e6, real(Sot)./Fsn);
axis(app.UISot, 'tight');
% s_output(t) in [dB]
tt1 = min(t(Sotdb>=-13));
tt2 = max(t(Sotdb>=-13));
ttd = tt2 - tt1;
zoomin = 0.2;
plot(app.UISotdb, t*1e6, Sotdb);
ylabel(app.UISotdb, 'Sout(t)');
axis(app.UISotdb, 'tight');
xlim(app.UISot, [(tt1 - ttd/zoomin)*1e6, (tt2 + ttd/zoomin)*1e6]);
xlim(app.UISotdb, [(tt1 - ttd/zoomin)*1e6, (tt2 + ttd/zoomin)*1e6]);
%xlim(app.UISotdb, [(t(1)+zoomin*T)*1e6, (t(end)-zoomin*T)*1e6]);
ylim(app.UISotdb, [-30, 0]);
target_number = 6;
swTarget_Value = zeros(1, target_number);
for ii = 1 : target_number
swTarget_Value_index = eval(['app.swTarget', num2str(ii), '.Value']);
if strcmp(swTarget_Value_index, 'On')
swTarget_Value(ii) = 1;
end
end
if sum(swTarget_Value) >= 2
hold(app.UIStm, 'off');
for ii = 1 : sum(swTarget_Value)
plot(app.UIStm, tm*1e6, real(Srt(ii,:)-2*(ii-1)));
hold(app.UIStm, 'on');
end
axis(app.UIStm, 'tight');
%xlim(app.UIStm, [tm(1)*1e6, tm(end)*1e6]);
plot(app.UIStc, tm*1e6, real(Stc));
axis(app.UIStc, 'tight');
%xlim(app.UIStc, [tm(1)*1e6, tm(end)*1e6]);
ylim(app.UIStc, [-max(abs(Stc))-0.5, max(abs(Stc))+0.5]);
xlabel(app.UIStc, 'Time [\mus]');
% s_output(t)
ttm1 = min(tm(Sotcdb>=-13));
ttm2 = max(tm(Sotcdb>=-13));
ttmd = ttm2 - ttm1;
zoomin = 0.3;
plot(app.UISot, tm*1e6, real(Sotc)./Fsn);
axis(app.UISot, 'tight');
xlim(app.UISotdb, [(ttm1 - ttmd/zoomin)*1e6, (ttm2 + ttmd/zoomin)*1e6]);
xlabel(app.UISot, 'Time [\mus]');
% s_output(t) in [dB]
plot(app.UISotdb, tm*1e6, Sotcdb);
ylabel(app.UISotdb, 'S_o_u_t(t)');
axis(app.UISotdb, 'tight');
xlim(app.UISot, [(ttm1 - ttmd/zoomin)*1e6, (ttm2 + ttmd/zoomin)*1e6]);
xlim(app.UISotdb, [(ttm1 - ttmd/zoomin)*1e6, (ttm2 + ttmd/zoomin)*1e6]);
ylim(app.UISotdb, [-30, 0]);
xlabel(app.UISotdb, 'Time [\mus]');
else
hold(app.UIStm, 'off');
% each s(t)
plot(app.UIStm, t*1e6, real(St));
xlim(app.UIStm, [t(1)*1e6, t(end)*1e6]);
ylim(app.UIStm, [-max(abs(St))-0.5, max(abs(St))+0.5]);
% combined s(t)
plot(app.UIStc, t*1e6, real(St));
xlim(app.UIStc, [t(1)*1e6, t(end)*1e6]);
ylim(app.UIStc, [-max(abs(St))-0.5, max(abs(St))+0.5]);
end
end
%% Chirp set
function [St, Sot, Sotdb, tm, Srt, Stc, Sotc, Sotcdb] = chirp(app)
if app.Bw.Value == 0 % chirp frequency modulation bandwidth
B = 1*1e6;
else
B = app.Bw.Value*1e6;
end
if app.Tp.Value == 0 % pulse duration
T = 0.1*1e-6;
else
T = app.Tp.Value*1e-6;
end
Fsn = app.Fsp.Value;
Fs = Fsn*B; % sampling frequency
Ts = 1/Fs; % sampling time per grid
N = T/Ts; % grid points
c = 3e8; % light speed
K = B/T;
A = 1;
switch app.swChirp.Value
case 'Symmetry-Chirp'
t = linspace(-0.5*T, 0.5*T, N);
case 'Up-Chirp'
t = linspace(0, T, N);
case 'Down-Chirp'
t = linspace(-T, 0, N);
end
% -- General waveform -- %
St = A*exp(1i*pi*K*t.^2);
if strcmp(app.swAWGN.Value, 'On')
St = awgn(app, St);
end
% -- Matched Filter -- %
t0 = linspace(-0.5*T, 0.5*T, N);
Ht = exp(-1i*pi*K*t0.^2);
if strcmp(app.swKaiser.Value, 'On')
Ht = kaiser_window(app, Ht);
end
% -- Convolution (s(t), h(t)) -- %
switch app.swChirp.Value
case 'Symmetry-Chirp'
Sot = conv(St, Ht, 'Same');
case 'Up-Chirp'
Sot = conv(St, Ht);
Sot = Sot(1:length(St));
case 'Down-Chirp'
Sot = conv(St, Ht);
Sot = Sot(end-length(St)+1:end);
end
Sotn = Sot./max(Sot);
Sotdb = 20*log10(abs(Sotn));
%% -- Multiple Targets -- %
H = app.h.Value*1e3; % radar height [m]
angi = app.Theta.Value; % angle of incidence [degree]
GR0 = H*tand(angi); % ground range from Nadir to Near Range [m]
target_number = 6;
GR1 = zeros(1, target_number);
for ii = 1 : target_number
swTarget_Value = eval(['app.swTarget', num2str(ii), '.Value']);
if strcmp(swTarget_Value, 'On')
GR1(ii) = eval(['app.InputTarget', num2str(ii), '.Value']);
end
end
if isempty(find(GR1, 1)) == 1
GR1 = 0;
else
GR1 = GR1(GR1~=0);
end
% Ground Range between Nadir and Targets
GR = GR0 + GR1;
% Range between Radar and Targets.
R = sqrt(GR.^2 + H^2);
% range interval
% time space before echo signals [s].
switch app.swChirp.Value
case 'Symmetry-Chirp'
Rmin = min(R) - c*T/3;
Rmax = max(R) + c*T/3;
case 'Up-Chirp'
Rmin = min(R) - c*T/3;
Rmax = max(R) + c*T/1.2;
case 'Down-Chirp'
Rmin = min(R) - c*T/1.2;
Rmax = max(R) + c*T/3;
end
Rwid = Rmax - Rmin; % receive window [meter]
Twid = 2*Rwid/c; % receive window [second]
Nwid = ceil(Twid/Ts); % receive window [number]
% radar cross section
RCS = ones(1, length(R));
% -- Generate the echo -- %
% receive window
% open window when t = 2*Rmin/C
% close window when t = 2*Rmax/C
tm = linspace(2*Rmin/c, 2*Rmax/c, Nwid);
% number of targets
MN = length(R);
% (total window time) - (received moment of each echo signals)
% the received moment of each signals should be td = 0
% for convenience, we set echo received time located at chirp center.
t_echo_center = 2*R/c;
td = repmat(tm, MN, 1) - repmat(t_echo_center', 1, Nwid);
% radar echo from point targets
switch app.swChirp.Value
case 'Symmetry-Chirp'
Srt = exp(1i*pi*K*td.^2).*(abs(td)<=T/2);
case 'Up-Chirp'
Srt = exp(1i*pi*K*td.^2).*(td >= 0 & td <= T);
case 'Down-Chirp'
Srt = exp(1i*pi*K*td.^2).*(td >= -T & td <= 0);
end
if strcmp(app.swAWGN.Value, 'On')
size_srt = size(Srt);
for ii = 1 : size_srt
Srt(ii, :) = awgn(app, Srt(ii, :));
end
end
% combine all signals continuity
Stc = RCS*Srt;
% -- Convolution (s(t), h(t)) of Multiple Targets -- %
switch app.swChirp.Value
case 'Symmetry-Chirp'
Sotc = conv(Stc, Ht, 'Same');
case 'Up-Chirp'
Sotc = conv(Stc, Ht);
Sotc = Sotc(1:length(Stc));
case 'Down-Chirp'
Sotc = conv(Stc, Ht);
Sotc = Sotc(end-length(Stc)+1:end);
end
Sotcn = Sotc/max(Sotc);
Sotcdb = 20*log10(abs(Sotcn));
end
%% Additive White Gaussian Noise
function St_awgn = awgn(app, St)
% y = awgn(x, SNR) adds AWGN noise vector to signal 'x' to generate
% a resulting signal vector y of specified SNR in dB
% Set the random generator seed to default (for comparison only)
%rng('default');
L = length(St);
% SNR to linear scale
SNR = app.KnobAWGN.Value;
% Calculate actual symbol energy
Esym = sum(abs(St).^2)/L;
% Find the noise spectral density
N0 = Esym/SNR;
if(isreal(St)),
% Standard deviation for AWGN Noise when x is real
noiseSigma = sqrt(N0);
% Computed noise
noise_awgn = noiseSigma*randn(1, L);
else
% Standard deviation for AWGN Noise when x is complex
noiseSigma = sqrt(N0/2);
% Computed noise
noise_awgn = noiseSigma*(randn(1, L) + 1i*randn(1, L));
end
% Received signal
St_awgn = St + noise_awgn;
end
%% Kaiser Window
function htw_ks = kaiser_window(app, ht)
% Kaiser window function for matched filter
% GW
% 2016-7-22
% Parameters
% Alpha
alfa = app.KnobKaiser.Value;
% N points in s(t)
N = length(ht);
Ns = linspace(-0.5*N, 0.5*N, N);
% Kaiser window
% wt_ks = I0u/I0d,
% I0 is the zeroth-order modified Bessel function of the first kind,
% I0u = upper term, I0d = lower term,
% alpha is an arbitrary, non-negative real number that determines ...
% the shape of the window. In the frequency domain, it determines ...
% the trade-off between main-lobe width and side lobe level, ...
% which is a central decision in window design.
I0u = besseli(0, pi*alfa*sqrt(1-((2*Ns)/N).^2));
I0d = besseli(0, pi*alfa);
wt_ks = I0u./I0d;
htw_ks = ht.*wt_ks;
end
end
methods (Access = private)
% Code that executes after component creation
function startupFcn(app)
app.swAutoUpdate.Value = 'On';
app.swAWGN.Value = 'Off';
app.LampAWGN.Color = [0.5, 0.5, 0.5];
app.KnobAWGN.Enable = 'Off';
app.dispAWGN.Enable = 'off';
app.swKaiser.Value = 'Off';
app.LampKaiser.Color = [0.5, 0.5, 0.5];
app.KnobKaiser.Enable = 'Off';
app.dispKaiser.Enable = 'off';
app.Button_Run.Visible = 'Off';
app.swChirp.Value = 'Symmetry-Chirp';
app.InputTarget1.Enable = 'Off';
app.InputTarget2.Enable = 'Off';
app.InputTarget3.Enable = 'Off';
app.InputTarget4.Enable = 'Off';
app.InputTarget5.Enable = 'Off';
app.InputTarget6.Enable = 'Off';
app.LampTarget1.Color = [0.5, 0.5, 0.5];
app.LampTarget2.Color = [0.5, 0.5, 0.5];
app.LampTarget3.Color = [0.5, 0.5, 0.5];
app.LampTarget4.Color = [0.5, 0.5, 0.5];
app.LampTarget5.Color = [0.5, 0.5, 0.5];
app.LampTarget6.Color = [0.5, 0.5, 0.5];
app.autoUpdate = 1;
updatePlot(app)
end
% Bw value changed function
function BwValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% Bw value changing function
function BwValueChanging(app, event)
format('Bank');
if event.Value == 0
app.disp_B.Value = 1;
else
app.disp_B.Value = event.Value;
end
end
% Button_Run button pushed function
function Button_RunButtonPushed(app)
updatePlot(app)
end
% Tp value changed function
function TpValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% disp_B value changed function
function disp_BValueChanged(app)
app.Bw.Value = app.disp_B.Value;
if app.autoUpdate
updatePlot(app)
end
end
% disp_T value changed function
function disp_TValueChanged(app)
app.Tp.Value = app.disp_T.Value;
if app.autoUpdate
updatePlot(app)
end
end
% Tp value changing function
function TpValueChanging(app, event)
format('Bank')
if event.Value == 0
app.disp_T.Value = 1;
else
app.disp_T.Value = event.Value;
end
end
% disp_Fs value changed function
function disp_FsValueChanged(app)
app.Fsp.Value = app.disp_Fs.Value;
if app.autoUpdate
updatePlot(app)
end
end
% Fsp value changing function
function FspValueChanging(app, event)
format('Bank')
app.disp_Fs.Value = event.Value;
end
% swAWGN value changed function
function swAWGNValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swAWGN.Value, 'On')
app.KnobAWGN.Enable = 'on';
app.dispAWGN.Enable = 'on';
app.LampAWGN.Color = [0, 1, 0] ;
else
app.KnobAWGN.Enable = 'off';
app.dispAWGN.Enable = 'off';
app.LampAWGN.Color = [0.5, 0.5, 0.5] ;
end
end
% swAutoUpdate value changed function
function swAutoUpdateValueChanged(app)
if strcmp(app.swAutoUpdate.Value, 'On')
app.autoUpdate = 1;
app.Button_Run.Visible = 'Off' ;
app.LampAutoUpdate.Color = [0, 1, 0] ;
else
app.autoUpdate = 0;
app.Button_Run.Visible = 'On' ;
app.LampAutoUpdate.Color = [0.5, 0.5, 0.5] ;
end
end
% Fsp value changed function
function FspValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% KnobAWGN value changed function
function KnobAWGNValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% dispAWGN value changed function
function dispAWGNValueChanged(app)
app.KnobAWGN.Value = app.dispAWGN.Value;
if app.autoUpdate
updatePlot(app)
end
end
% swKaiser value changed function
function swKaiserValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swKaiser.Value, 'On')
app.KnobKaiser.Enable = 'on';
app.dispKaiser.Enable = 'on';
app.LampKaiser.Color = [0, 1, 0] ;
else
app.KnobKaiser.Enable = 'off';
app.dispKaiser.Enable = 'off';
app.LampKaiser.Color = [0.5, 0.5, 0.5] ;
end
end
% KnobKaiser value changed function
function KnobKaiserValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% dispKaiser value changed function
function dispKaiserValueChanged(app)
app.KnobKaiser.Value = app.dispKaiser.Value;
if app.autoUpdate
updatePlot(app)
end
end
% KnobAWGN value changing function
function KnobAWGNValueChanging(app, event)
format('Bank')
app.dispAWGN.Value = event.Value;
end
% KnobKaiser value changing function
function KnobKaiserValueChanging(app, event)
format('Bank')
app.dispKaiser.Value = event.Value;
end
% swChirp value changed function
function swChirpValueChanged(app, event)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget1 value changed function
function InputTarget1ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget2 value changed function
function InputTarget2ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget3 value changed function
function InputTarget3ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget4 value changed function
function InputTarget4ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget5 value changed function
function InputTarget5ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% InputTarget6 value changed function
function InputTarget6ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% swTarget1 value changed function
function swTarget1ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget1.Value, 'On')
app.InputTarget1.Enable = 'on';
app.LampTarget1.Color = [0, 1, 0];
else
app.InputTarget1.Enable = 'off';
app.LampTarget1.Color = [0.5, 0.5, 0.5];
end
end
% swTarget2 value changed function
function swTarget2ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget2.Value, 'On')
app.InputTarget2.Enable = 'on';
app.LampTarget2.Color = [0, 1, 0];
else
app.InputTarget2.Enable = 'off';
app.LampTarget2.Color = [0.5, 0.5, 0.5];
end
end
% swTarget3 value changed function
function swTarget3ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget3.Value, 'On')
app.InputTarget3.Enable = 'on';
app.LampTarget3.Color = [0, 1, 0];
else
app.InputTarget3.Enable = 'off';
app.LampTarget3.Color = [0.5, 0.5, 0.5];
end
end
% swTarget4 value changed function
function swTarget4ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget4.Value, 'On')
app.InputTarget4.Enable = 'on';
app.LampTarget4.Color = [0, 1, 0];
else
app.InputTarget4.Enable = 'off';
app.LampTarget4.Color = [0.5, 0.5, 0.5];
end
end
% swTarget5 value changed function
function swTarget5ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget5.Value, 'On')
app.InputTarget5.Enable = 'on';
app.LampTarget5.Color = [0, 1, 0];
else
app.InputTarget5.Enable = 'off';
app.LampTarget5.Color = [0.5, 0.5, 0.5];
end
end
% swTarget6 value changed function
function swTarget6ValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
if strcmp(app.swTarget6.Value, 'On')
app.InputTarget6.Enable = 'on';
app.LampTarget6.Color = [0, 1, 0];
else
app.InputTarget6.Enable = 'off';
app.LampTarget6.Color = [0.5, 0.5, 0.5];
end
end
% h value changed function
function hValueChanged(app)
format('Bank');
app.disp_NearRange.Value = app.h.Value*tand(app.Theta.Value);
if app.autoUpdate
updatePlot(app)
end
end
% disp_h value changed function
function disp_hValueChanged(app)
format('Bank');
app.h.Value = app.disp_h.Value;
app.disp_NearRange.Value = app.h.Value*tand(app.Theta.Value);
if app.autoUpdate
updatePlot(app)
end
end
% h value changing function
function hValueChanging(app, event)
format('Bank');
app.disp_h.Value = event.Value;
end
% Theta value changed function
function ThetaValueChanged(app)
app.disp_NearRange.Value = app.h.Value*tand(app.Theta.Value);
end
% KnobTheta value changed function
function KnobThetaValueChanged(app)
if app.autoUpdate
updatePlot(app)
end
end
% KnobTheta value changing function
function KnobThetaValueChanging(app, event)
format('Bank')
app.Theta.Value = event.Value;
app.disp_NearRange.Value = app.h.Value*tand(app.Theta.Value);
end
end
% App initialization and construction
methods (Access = private)
% Create UIFigure and components
function createComponents(app)
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 60 1151 617];
app.UIFigure.Name = 'Single and Multi-target Chirp Signal Compression Simulator';
setAutoResize(app, app.UIFigure, true)
% Create UISot
app.UISot = uiaxes(app.UIFigure);
title(app.UISot, 'Signal Compressed after Matched Filter');
xlabel(app.UISot, 'Time [us]');
ylabel(app.UISot, 'Amplitude');
app.UISot.Box = 'on';
app.UISot.XGrid = 'on';
app.UISot.YGrid = 'on';
app.UISot.Position = [740 310 400 273];
% Create UISotdb
app.UISotdb = uiaxes(app.UIFigure);
title(app.UISotdb, 'Signal Compressed after Matched Filter in [dB]');
xlabel(app.UISotdb, 'Time [us]');
ylabel(app.UISotdb, 'dB');
app.UISotdb.Box = 'on';
app.UISotdb.XGrid = 'on';
app.UISotdb.YGrid = 'on';
app.UISotdb.Position = [740 5 399 298];
% Create UISt
app.UISt = uiaxes(app.UIFigure);
title(app.UISt, 'Radar Echo Signals');
ylabel(app.UISt, 's(t)');
app.UISt.Box = 'on';
app.UISt.XGrid = 'on';
app.UISt.YGrid = 'on';
app.UISt.Position = [313 408 428 175];
% Create UIStc
app.UIStc = uiaxes(app.UIFigure);
title(app.UIStc, 'Combination of all Signals');
xlabel(app.UIStc, 'Time [us]');
ylabel(app.UIStc, 's(t)');
app.UIStc.Box = 'on';
app.UIStc.XGrid = 'on';
app.UIStc.YGrid = 'on';
app.UIStc.Position = [313 5 428 200];
% Create TabGroup
app.TabGroup = uitabgroup(app.UIFigure);
app.TabGroup.Units = 'pixels';
app.TabGroup.Position = [8 8 298 567];
% Create Tab
app.Tab = uitab(app.TabGroup);
app.Tab.Units = 'pixels';
app.Tab.Title = 'Chirp Set';
% Create LabelSlider
app.LabelSlider = uilabel(app.Tab);
app.LabelSlider.HorizontalAlignment = 'center';
app.LabelSlider.VerticalAlignment = 'center';
app.LabelSlider.FontSize = 16;
app.LabelSlider.Position = [51 458 121 20];
app.LabelSlider.Text = 'Bandwidth [MHz]';
% Create Bw
app.Bw = uislider(app.Tab);
app.Bw.MajorTickLabels = {'1', '20', '40', '60', '80', '100'};
app.Bw.ValueChangedFcn = createCallbackFcn(app, @BwValueChanged);
app.Bw.ValueChangingFcn = createCallbackFcn(app, @BwValueChanging, true);
app.Bw.Position = [28 449 232 3];
app.Bw.Value = 30;
% Create disp_B
app.disp_B = uieditfield(app.Tab, 'numeric');
app.disp_B.ValueChangedFcn = createCallbackFcn(app, @disp_BValueChanged);
app.disp_B.Limits = [1 100];
app.disp_B.RoundFractionalValues = 'on';
app.disp_B.Position = [196 457 52 22];
app.disp_B.Value = 30;
% Create Label
app.Label = uilabel(app.Tab);
app.Label.HorizontalAlignment = 'center';
app.Label.VerticalAlignment = 'center';
app.Label.FontSize = 16;
app.Label.Position = [51 382 133 20];
app.Label.Text = 'Pulse duration [us]';
% Create Tp
app.Tp = uislider(app.Tab);
app.Tp.Limits = [1 50];
app.Tp.MajorTickLabels = {'1', '8', '15', '22', '29', '36', '43', '50'};
app.Tp.ValueChangedFcn = createCallbackFcn(app, @TpValueChanged);
app.Tp.ValueChangingFcn = createCallbackFcn(app, @TpValueChanging, true);
app.Tp.Position = [28 372 232 3];
app.Tp.Value = 5;
% Create disp_T
app.disp_T = uieditfield(app.Tab, 'numeric');
app.disp_T.ValueChangedFcn = createCallbackFcn(app, @disp_TValueChanged);
app.disp_T.Limits = [1 50];
app.disp_T.RoundFractionalValues = 'on';
app.disp_T.Position = [196 381 52 22];
app.disp_T.Value = 5;
% Create Label2
app.Label2 = uilabel(app.Tab);
app.Label2.HorizontalAlignment = 'center';
app.Label2.VerticalAlignment = 'center';
app.Label2.FontSize = 14;
app.Label2.Position = [43 311 129 18];
app.Label2.Text = 'Sampling Frequency';
% Create Fsp
app.Fsp = uislider(app.Tab);
app.Fsp.Limits = [2 12];
app.Fsp.ValueChangedFcn = createCallbackFcn(app, @FspValueChanged);
app.Fsp.ValueChangingFcn = createCallbackFcn(app, @FspValueChanging, true);
app.Fsp.Position = [28 301 232 3];
app.Fsp.Value = 5;
% Create disp_Fs
app.disp_Fs = uieditfield(app.Tab, 'numeric');
app.disp_Fs.ValueChangedFcn = createCallbackFcn(app, @disp_FsValueChanged);
app.disp_Fs.Limits = [2 12];
app.disp_Fs.RoundFractionalValues = 'on';
app.disp_Fs.Position = [180 309 26 22];
app.disp_Fs.Value = 5;
% Create Label3
app.Label3 = uilabel(app.Tab);
app.Label3.FontSize = 14;
app.Label3.Position = [211 311 21 18];
app.Label3.Text = 'x B';
% Create Button_Run
app.Button_Run = uibutton(app.Tab, 'push');
app.Button_Run.ButtonPushedFcn = createCallbackFcn(app, @Button_RunButtonPushed);
app.Button_Run.FontSize = 28;
app.Button_Run.FontColor = [0.0627 0 0.7686];
app.Button_Run.Position = [127 6 151 42];
app.Button_Run.Text = 'Run';
% Create LabelKnob
app.LabelKnob = uilabel(app.Tab);
app.LabelKnob.HorizontalAlignment = 'center';
app.LabelKnob.Position = [46.5 67 40 15];
app.LabelKnob.Text = 'SNR = ';
% Create KnobAWGN
app.KnobAWGN = uiknob(app.Tab, 'continuous');
app.KnobAWGN.Limits = [0.01 2];
app.KnobAWGN.MajorTicks = [0.01 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2];
app.KnobAWGN.ValueChangedFcn = createCallbackFcn(app, @KnobAWGNValueChanged);
app.KnobAWGN.ValueChangingFcn = createCallbackFcn(app, @KnobAWGNValueChanging, true);
app.KnobAWGN.Position = [52 108 60 60];
app.KnobAWGN.Value = 1;
% Create dispAWGN
app.dispAWGN = uieditfield(app.Tab, 'numeric');
app.dispAWGN.ValueChangedFcn = createCallbackFcn(app, @dispAWGNValueChanged);
app.dispAWGN.Limits = [0.01 2];
app.dispAWGN.Position = [86 63 26 22];
app.dispAWGN.Value = 1;
% Create Label4
app.Label4 = uilabel(app.Tab);
app.Label4.HorizontalAlignment = 'center';