From cedc4708cf73151c6b887198b14851c6adf8fc86 Mon Sep 17 00:00:00 2001
From: andreas128 <Andreas>
Date: Wed, 23 Aug 2017 14:19:38 +0200
Subject: Add coefficient nomalization

---
 dpd/main.py      | 3 ++-
 dpd/src/Model.py | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

(limited to 'dpd')

diff --git a/dpd/main.py b/dpd/main.py
index 81e2588..4d2b93d 100755
--- a/dpd/main.py
+++ b/dpd/main.py
@@ -59,7 +59,8 @@ adapt = Adapt.Adapt(port_rc, coef_path)
 coefs = adapt.get_coefs()
 #model = Model.Model(coefs)
 model = Model.Model([2.2, 0, 0, 0, 0])
-adapt.set_txgain(84)
+adapt.set_txgain(79)
+adapt.set_rxgain(15+20)
 
 tx_gain   = adapt.get_txgain()
 rx_gain   = adapt.get_rxgain()
diff --git a/dpd/src/Model.py b/dpd/src/Model.py
index aef112c..8df3925 100644
--- a/dpd/src/Model.py
+++ b/dpd/src/Model.py
@@ -23,6 +23,9 @@ class Model:
         self.errs = [0,]
 
     def get_next_coefs(self, txframe_aligned, rxframe_aligned):
+        dt = datetime.datetime.now().isoformat()
+        txframe_aligned.tofile(logging_path + "/txframe_" + dt + ".iq")
+        rxframe_aligned.tofile(logging_path + "/rxframe_" + dt + ".iq")
         rx_abs = np.abs(rxframe_aligned)
         rx_A = np.vstack([rx_abs,
                        rx_abs**3,
@@ -39,6 +42,7 @@ class Model:
 
         a_delta = np.linalg.lstsq(rx_A, err)[0]
         new_coefs = self.coefs - 0.1 * a_delta
+        new_coefs = new_coefs * (self.coefs[0] / new_coefs[0])
         logging.debug("a_delta {}".format(a_delta))
         logging.debug("new coefs {}".format(new_coefs))
 
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