1 files changed, 50 insertions, 27 deletions
diff --git a/dpd/src/phase_align.py b/dpd/src/phase_align.py
index 9e78483..bea0b82 100644
--- a/dpd/src/phase_align.py
+++ b/dpd/src/phase_align.py
@@ -14,35 +14,58 @@ def phase_align(sig, ref_sig):
 
     angle_diff = (np.angle(sig) - np.angle(ref_sig)) % (2. * np.pi)
 
-    dt = datetime.datetime.now().isoformat()
-    fig_path = "/tmp/phase_align_" + dt + ".pdf"
-    plt.subplot(311)
-    plt.hist(angle_diff, bins=60, label="Angle Diff")
-    plt.xlabel("Angle")
-    plt.ylabel("Count")
-    plt.legend(loc=4)
-
-    plt.subplot(312)
-    plt.plot(np.angle(ref_sig[:128]), label="ref_sig")
-    plt.plot(np.angle(sig[:128]), label="sig")
-    plt.xlabel("Angle")
-    plt.ylabel("Sample")
-    plt.legend(loc=4)
-
-    angle = np.median(angle_diff)
-    logging.debug("Compensating phase by {} rad, {} degree.".format(
-        angle, angle*180./np.pi
+    real_diffs = np.cos(angle_diff)
+    imag_diffs = np.sin(angle_diff)
+
+    if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
+        dt = datetime.datetime.now().isoformat()
+        fig_path = "/tmp/" + dt + "_phase_align.pdf"
+
+        plt.subplot(511)
+        plt.hist(angle_diff, bins=60, label="Angle Diff")
+        plt.xlabel("Angle")
+        plt.ylabel("Count")
+        plt.legend(loc=4)
+
+        plt.subplot(512)
+        plt.hist(real_diffs, bins=60, label="Real Diff")
+        plt.xlabel("Real Part")
+        plt.ylabel("Count")
+        plt.legend(loc=4)
+
+        plt.subplot(513)
+        plt.hist(imag_diffs, bins=60, label="Imaginary Diff")
+        plt.xlabel("Imaginary Part")
+        plt.ylabel("Count")
+        plt.legend(loc=4)
+
+        plt.subplot(514)
+        plt.plot(np.angle(ref_sig[:128]), label="ref_sig")
+        plt.plot(np.angle(sig[:128]), label="sig")
+        plt.xlabel("Angle")
+        plt.ylabel("Sample")
+        plt.legend(loc=4)
+
+    real_diff = np.median(real_diffs)
+    imag_diff = np.median(imag_diffs)
+
+    angle = np.angle(real_diff + 1j * imag_diff)
+
+    logging.debug(
+        "Compensating phase by {} rad, {} degree. real median {}, imag median {}".format(
+        angle, angle*180./np.pi, real_diff, imag_diff
     ))
     sig = sig * np.exp(1j * -angle)
 
-    plt.subplot(313)
-    plt.plot(np.angle(ref_sig[:128]), label="ref_sig")
-    plt.plot(np.angle(sig[:128]), label="sig")
-    plt.xlabel("Angle")
-    plt.ylabel("Sample")
-    plt.legend(loc=4)
-    plt.tight_layout()
-    plt.savefig(fig_path)
-    plt.clf()
+    if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
+        plt.subplot(515)
+        plt.plot(np.angle(ref_sig[:128]), label="ref_sig")
+        plt.plot(np.angle(sig[:128]), label="sig")
+        plt.xlabel("Angle")
+        plt.ylabel("Sample")
+        plt.legend(loc=4)
+        plt.tight_layout()
+        plt.savefig(fig_path)
+        plt.clf()
 
     return sig