Safeguard in clock_offset_control against too big values of ppm
diff --git a/python/clock_offset_control.py b/python/clock_offset_control.py
index e8f10ac..4cf1e6f 100644
--- a/python/clock_offset_control.py
+++ b/python/clock_offset_control.py
@@ -49,7 +49,11 @@
freq_offset = pmt.to_double(pmt.tuple_ref(msg,1))
ppm = -freq_offset/self.fc*1.0e6
state = pmt.symbol_to_string(pmt.tuple_ref(msg,2))
-
+
+ if abs(ppm) > 50:
+ ppm = 0
+ self.reset()
+
if state == "fcch_search":
msg_ppm = pmt.from_double(ppm)
self.message_port_pub(pmt.intern("ppm"), msg_ppm)
@@ -69,9 +73,10 @@
self.counter=self.counter+1
if state == "sync_loss":
- self.ppm_estimate = -1e6
- self.counter = 0
- self.first_measurement = True
+ self.reset()
msg_ppm = pmt.from_double(0.0)
self.message_port_pub(pmt.intern("ppm"), msg_ppm)
-
+ def reset(self):
+ self.ppm_estimate = -1e6
+ self.counter = 0
+ self.first_measurement = True