KG-access/RADAR_system_analysis
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merge into: KG-access/RADAR_system_analysis:master
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KG-access/RADAR_system_analysis:master KG-access/RADAR_system_analysis:develop KG-access/RADAR_system_analysis:feature/applying_DOA_CBF KG-access/RADAR_system_analysis:feature/fix_angle_error KG-access/RADAR_system_analysis:feature/del_annotation
..
pull from: KG-access/RADAR_system_analysis:feature/del_annotation
Branches Tags
KG-access/RADAR_system_analysis:develop KG-access/RADAR_system_analysis:feature/applying_DOA_CBF KG-access/RADAR_system_analysis:feature/fix_angle_error KG-access/RADAR_system_analysis:feature/del_annotation KG-access/RADAR_system_analysis:master
2 Commits
master .. feature/del_annotation
Author SHA1 Message Date
KG-access 2353d11df0 Deleting annotation 2025-07-29 23:14:05 +09:00
KG-access 187bd43b08 Preallocation for waveform size 2025-07-29 22:25:43 +09:00
1 changed files with 7 additions and 16 deletions
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System_Analysis_Main.m
+5 -14
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@@ -113,7 +113,7 @@ tgt_pos = [tgt_rng.*cosd(tgt_azi).*cosd(tgt_elv) tgt_rng.*sind(tgt_azi).*cosd(tg
%tgt_pos = [150 0 0].';
tgt_vel = [5 0 0].';
tgt_acc = [0 0 0].';
tgt_rcs = [20];
tgt_rcs = [10];
tgt_class = 'TCR';
tgt = gen_tgt(tgt_pos, tgt_vel, tgt_acc, tgt_rcs, 'TCR');
tgt.num = size(tgt.rcs, 1);
@@ -147,26 +147,18 @@ timing_struct.T_jumpback = 0.5e-6;
timing_struct.T_reset = 1e-6;
timing_struct.T_acq = 51.2e-6;
tx_phase_initial = 0;
timing_struct.T_idle = 9.5e-6; %[1e-6 9.5e-6 18e-6];
% timing_struct.T_dwell = 0e-6;
% timing_struct.T_settle = 0e-6;
% timing_struct.T_jumpback = 0e-6;
% timing_struct.T_reset = 0e-6;
% timing_struct.T_acq = 51.2e-6;
% tx_phase_initial = 0;
% timing_struct.T_idle = 0e-6; %[1e-6 9.5e-6 18e-6];
timing_struct.T_idle = 1e-6; %[1e-6 9.5e-6 18e-6];
timing_struct.PRI = timing_struct.T_dwell + timing_struct.T_settle + timing_struct.T_jumpback + timing_struct.T_reset + timing_struct.T_acq + timing_struct.T_idle;
%[56.7e-6 65.2e-6 73.7e-6];
% [24.08.22] Lowpass filter 구현 때문에 2배 oversampling 함.
temp_Ref_wave = zeros(2*NumSamples, NumChirps);
for m = 1 : NumChirps
%Tx_wave = gen_fastramp_fmcw2(timing_struct, 2*fs, fc-TxBw/2, TxBw, m, NumChirps, 0, tx_phase_initial, opt_waveform);
Tx_wave = gen_fastramp_fmcw(timing_struct, 2*fs, fc-TxBw/2, TxBw, NumChirps, 0, tx_phase_initial, opt_waveform);
Ref_wave(:,m) = Tx_wave.waveform;
temp_Ref_wave(:,m) = Tx_wave.waveform;
end
Ref_wave = repmat(Ref_wave, 1, 1, Nr);
Ref_wave = repmat(temp_Ref_wave, 1, 1, Nr);
% 02. DDMA
DDMA_freq = [0 1/4 2/4] * 1/Tx_wave.T_chirp;
@@ -244,7 +236,6 @@ for tgtidx = 1 : tgt.num
target_prop_time = target_prop_time_dod + target_prop_time_doa;
% [24.08.22] Lowpass filter 구현 때문에 2배 oversampling 함.
%delayed_wave = gen_fastramp_fmcw2(timing_struct, 2*fs, fc-TxBw/2, TxBw, m, NumChirps, target_prop_time, tx_phase_initial, opt_waveform);
delayed_wave = gen_fastramp_fmcw(timing_struct, 2*fs, fc-TxBw/2, TxBw, NumChirps, target_prop_time, tx_phase_initial, opt_waveform);
delayed_Tx_sig(:,m,rxidx) = delayed_Tx_sig(:,m,rxidx) + sqrt(db2pow(powVar_dB(txidx, rxidx))) * (delayed_wave.waveform).' .* exp(-1i * 2 * pi * DDMA_freq(txidx) * ((m-1) * delayed_wave.T_chirp));
end