tests

QAM/debug.py

@@ -0,0 +1,32 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+def plot_constellations(ref_file, rx_file, title="Constellation comparison"):
+    # Charger et forcer 2D
+    ref_data = np.atleast_2d(np.loadtxt(ref_file))
+    rx_data = np.atleast_2d(np.loadtxt(rx_file))
+    
+    x_ref, y_ref = ref_data[:,0], ref_data[:,1]
+    x_rx, y_rx = rx_data[:,0], rx_data[:,1]
+
+    plt.figure(figsize=(6,6))
+    plt.scatter(x_ref, y_ref, color='blue', s=50, marker='o', label='Référence')
+    plt.scatter(x_rx, y_rx, color='red', s=50, marker='x', label='Reçu')
+
+    # Ajustement automatique des limites
+    all_x = np.concatenate([x_ref, x_rx])
+    all_y = np.concatenate([y_ref, y_rx])
+    margin = 0.1 * max(np.ptp(all_x), np.ptp(all_y))
+    plt.xlim(min(all_x)-margin, max(all_x)+margin)
+    plt.ylim(min(all_y)-margin, max(all_y)+margin)
+
+    plt.xlabel('In-phase (I)')
+    plt.ylabel('Quadrature (Q)')
+    plt.title(title)
+    plt.grid(False)
+    plt.gca().set_aspect('equal', adjustable='box')
+    plt.legend()
+    plt.show()
+
+plot_constellations("constellation_ref.dat", "constellation.dat", title="Constellation QAM")
+