Initial ARSS. Need to improve and add functions.

2026-03-02 14:48:21 +09:00
commit 775668afdb
20 changed files with 1610 additions and 0 deletions
@@ -0,0 +1,78 @@
+function fig = visualize_tx_waveform(t, Timing, fc, f_start, Slope, tx_mask, peak_phase_error, f_ripple)
+    fig = figure('Name', 'FMCW Radar Timing & True RF Frequency', 'Position', [100, 100, 1100, 700]);
+
+    t_ramp = t - Timing.IdleTime;
+    
+    % 주파수 스윕 계산
+    inst_freq_theoretical = f_start + Slope * t_ramp;
+    freq_nonlin = peak_phase_error * f_ripple * cos(2 * pi * f_ripple * t_ramp);
+    inst_freq_theoretical = inst_freq_theoretical + freq_nonlin;
+
+    inst_freq_masked = inst_freq_theoretical;
+    inst_freq_masked(tx_mask == 0) = NaN;
+
+    % Y축 동적 스케일링 설정
+    y_min = (f_start / 1e9) - 0.2;
+    y_max = (f_start / 1e9) + (Slope * Timing.RampEndTime / 1e9) + 0.1;
+
+    % --- [주파수 곡선 플롯] ---
+    plot(t * 1e6, inst_freq_masked / 1e9, 'b', 'LineWidth', 2.5);
+    title(sprintf('Mathematical Instantaneous RF Frequency & HW Timing (Center fc = %.2f GHz)', fc/1e9), 'FontSize', 12);
+    xlabel('Time (\mus)', 'FontSize', 11); ylabel('Absolute Frequency (GHz)', 'FontSize', 11);
+
+    ylim([y_min, y_max]); 
+    grid on; hold on;
+
+    % --- [좌측 상단: 유효 주파수 및 대역폭 정보 박스 추가] ---
+    % ADC 샘플링 구간에 해당하는 유효 시작/끝 주파수 및 대역폭 계산
+    f_valid_start = f_start + (Slope * Timing.AdcStartTime);
+    f_valid_end   = f_start + (Slope * (Timing.AdcStartTime + Timing.AdcSampTime));
+    valid_bandwidth = f_valid_end - f_valid_start; % 유효 대역폭 추가 계산
+
+    info_str = {
+        sprintf('▶ Valid Start Freq : %.4f GHz', f_valid_start / 1e9), ...
+        sprintf('▶ Center Freq      : %.4f GHz', fc / 1e9), ...
+        sprintf('▶ Valid End Freq   : %.4f GHz', f_valid_end / 1e9), ...
+        sprintf('▶ Valid Bandwidth  : %.4f GHz', valid_bandwidth / 1e9) % 정보 박스에 표시
+    };
+    
+    text(0.02, 0.96, info_str, 'Units', 'normalized', ...
+        'FontSize', 10, 'FontWeight', 'bold', 'BackgroundColor', [1 1 1 0.85], ...
+        'EdgeColor', 'k', 'VerticalAlignment', 'top', 'Margin', 5);
+
+
+    % --- [가이드 세로선 그리기] ---
+    y_lims = ylim;
+    guide_line_args = {'Color', [0 0 0.5], 'LineStyle', '--', 'LineWidth', 1}; 
+    
+    x_coords = [0, Timing.IdleTime, ...
+                (Timing.IdleTime + Timing.TxStartTime), ...
+                (Timing.IdleTime + Timing.AdcStartTime), ...
+                (Timing.IdleTime + Timing.AdcStartTime + Timing.AdcSampTime), ...
+                (Timing.IdleTime + Timing.RampEndTime)];
+    x_coords_us = x_coords * 1e6;
+
+    for i = 1:length(x_coords_us)
+        plot([x_coords_us(i), x_coords_us(i)], y_lims, guide_line_args{:});
+    end
+
+    % --- [커스텀 다각형 화살표 함수] ---
+    draw_dim_arrow = @(x1, x2, y, name, val_us) ...
+        [plot([x1, x2], [y, y], 'k-', 'LineWidth', 1.2), ... 
+         fill([x1, x1 + min(0.6, (x2-x1)*0.35), x1 + min(0.6, (x2-x1)*0.35)], [y, y + 0.015, y - 0.015], 'k', 'EdgeColor', 'none'), ...
+         fill([x2, x2 - min(0.6, (x2-x1)*0.35), x2 - min(0.6, (x2-x1)*0.35)], [y, y + 0.015, y - 0.015], 'k', 'EdgeColor', 'none'), ...
+         text((x1+x2)/2, y + 0.03, sprintf('%s\n(%.1f \\mus)', name, val_us), 'HorizontalAlignment', 'center', 'VerticalAlignment', 'bottom', 'FontSize', 9, 'FontWeight', 'bold', 'BackgroundColor', 'w', 'EdgeColor', 'k')];
+
+    % 화살표 배치 높이 동적 설정
+    y1 = y_min + 0.05; 
+    y2 = y_min + 0.18; 
+    y3 = y_min + 0.31; 
+
+    draw_dim_arrow(x_coords_us(1), x_coords_us(2), y1, 'Idle Time', Timing.IdleTime * 1e6);
+    draw_dim_arrow(x_coords_us(2), x_coords_us(3), y2, 'TX Start', Timing.TxStartTime * 1e6);
+    draw_dim_arrow(x_coords_us(2), x_coords_us(4), y3, 'ADC Delay', Timing.AdcStartTime * 1e6);
+    draw_dim_arrow(x_coords_us(4), x_coords_us(5), y2, 'ADC Sampling (Valid)', Timing.AdcSampTime * 1e6);
+    draw_dim_arrow(x_coords_us(5), x_coords_us(6), y1, 'Excess', Timing.ExcessTime * 1e6);
+
+    hold off;
+end