From bc395ef1e3ec5ab3df17f6aa16b3ac0a39188a1e Mon Sep 17 00:00:00 2001
From: andreas128 <Andreas>
Date: Fri, 11 Aug 2017 19:08:55 +0200
Subject: Fix correlation for complex signal

---
 dpd/src/Dab_Util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dpd/src/Dab_Util.py b/dpd/src/Dab_Util.py
index 0da7343..aee66d2 100644
--- a/dpd/src/Dab_Util.py
+++ b/dpd/src/Dab_Util.py
@@ -27,7 +27,7 @@ class Dab_Util:
             sig_rec: The signal that has been recored
         """
         off = sig_rec.shape[0]
-        c = signal.correlate(sig_orig, sig_rec)
+        c = np.abs(signal.correlate(sig_orig, sig_rec))
         return np.argmax(c) - off + 1
 
     def lag_upsampling(self, sig_orig, sig_rec, n_up):
-- 
cgit v1.2.3