Merge pull request #19 from valeri-atamaniouk/i160-final-patches

iqgen: unit tests for signals

Author: valeri-atamaniouk

peregrine/iqgen/bits/encoder_factory.py

@@ -0,0 +1,75 @@
+# Copyright (C) 2016 Swift Navigation Inc.
+#
+# Contact: Valeri Atamaniouk <[email protected]>
+# This source is subject to the license found in the file 'LICENSE' which must
+# be be distributed together with this source. All other rights reserved.
+#
+# THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
+# EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
+
+'''
+Unit tests for IQgen signal definitions
+'''
+
+from peregrine.iqgen.bits.signals import GPS
+from peregrine.iqgen.bits.signals import GLONASS
+from scipy.constants import c as C
+
+
+def test_GPSL1():
+  '''
+  Test GPS L1 signal methods
+  '''
+  doppler = -10. / C * GPS.L1CA.CENTER_FREQUENCY_HZ
+  assert GPS.L1CA.calcDopplerShiftHz(1000., 10.) == doppler
+  assert GPS.L1CA.getCodeChipIndex(0.) == 0
+  assert GPS.L1CA.getCodeChipIndex(0.5) == 511500
+  assert GPS.L1CA.getSymbolIndex(0.) == 0
+  assert GPS.L1CA.getSymbolIndex(0.5) == 25
+
+
+def test_GPSL2():
+  '''
+  Test GPS L2 signal methods
+  '''
+  doppler = -10. / C * GPS.L2C.CENTER_FREQUENCY_HZ
+  assert GPS.L2C.calcDopplerShiftHz(1000., 10.) == doppler
+  assert GPS.L2C.getCodeChipIndex(0.) == 0
+  assert GPS.L2C.getCodeChipIndex(0.5) == 511500
+  assert GPS.L2C.getSymbolIndex(0.) == 0
+  assert GPS.L2C.getSymbolIndex(0.5) == 25
+
+
+def test_GLONASS_common():
+  '''
+  Test common GLONASS signal methods
+  '''
+  assert GLONASS.getCodeChipIndex(0.) == 0
+  assert GLONASS.getCodeChipIndex(0.5) == 511000 / 2
+  assert GLONASS.getSymbolIndex(0.) == 0
+  assert GLONASS.getSymbolIndex(0.5) == 50
+
+
+def test_GLONASSL1():
+  '''
+  Test GLONASS L1 signal methods
+  '''
+  doppler = -10. / C * GLONASS.L1S[0].CENTER_FREQUENCY_HZ
+  assert GLONASS.L1S[0].calcDopplerShiftHz(1000., 10.) == doppler
+  assert GLONASS.L1S[0].getCodeChipIndex(0.) == 0
+  assert GLONASS.L1S[0].getCodeChipIndex(0.5) == 511000 / 2
+  assert GLONASS.L1S[0].getSymbolIndex(0.) == 0
+  assert GLONASS.L1S[0].getSymbolIndex(0.5) == 50
+
+
+def test_GLONASSL2():
+  '''
+  Test GLONASS L2 signal methods
+  '''
+  doppler = -10. / C * GLONASS.L2S[0].CENTER_FREQUENCY_HZ
+  assert GLONASS.L2S[0].calcDopplerShiftHz(1000., 10.) == doppler
+  assert GLONASS.L2S[0].getCodeChipIndex(0.) == 0
+  assert GLONASS.L2S[0].getCodeChipIndex(0.5) == 511000 / 2
+  assert GLONASS.L2S[0].getSymbolIndex(0.) == 0
+  assert GLONASS.L2S[0].getSymbolIndex(0.5) == 50

tests/test_iqgen_signals.py

@@ -22,7 +22,7 @@
 import numpy
 
 
-def test_GPSSv_init():
+def test_GLOSv_init():
   '''
   GLONASS SV initialization test
   '''
@@ -34,7 +34,7 @@ def test_GPSSv_init():
   assert isinstance(sv.doppler, DopplerBase)
 
 
-def test_GPSSV_bands():
+def test_GLOSV_bands():
   '''
   GLONASS SV band configurations
   '''
@@ -58,9 +58,9 @@ def test_GPSSV_bands():
   assert sv.isL2Enabled()
 
 
-def test_GPSSV_messages():
+def test_GLOSV_messages():
   '''
-  GPS SV messages test
+  GLONASS SV messages test
   '''
   sv = GLOSatellite(1)
   assert sv.l1Message == sv.getL1Message()
@@ -75,19 +75,19 @@ def test_GPSSV_messages():
   assert sv.l2Message == sv.getL2Message() != msg2
 
 
-def test_GPSSV_str():
+def test_GLOSV_str():
   '''
-  GPS SV string representation
+  GLONASS SV string representation
   '''
   sv = GLOSatellite(3)
   value = str(sv)
   assert value.find('GLONASS') >= 0
   assert value.find('3') >= 0
 
 
-def test_SVBase_getBatchSignals0():
+def test_GLOSv_getBatchSignals0():
   '''
-  GPS SV signal generation: not enabled
+  GLONASS SV signal generation: not enabled
   '''
   sv = GLOSatellite(1)
   start = 0.
@@ -106,9 +106,9 @@ def test_SVBase_getBatchSignals0():
   assert (samples == 0).all()
 
 
-def test_SVBase_getBatchSignals1():
+def test_GLOSv_getBatchSignals1():
   '''
-  GPS SV signal generation: not available
+  GLONASS SV signal generation: not available
   '''
   sv = GLOSatellite(1)
   start = 0.
@@ -127,7 +127,7 @@ def test_SVBase_getBatchSignals1():
   assert (samples == 0).all()
 
 
-def test_SVBase_getBatchSignals2():
+def test_GLOSv_getBatchSignals2():
   '''
   GLONASS SV signal generation: L1
   '''
@@ -154,7 +154,7 @@ def test_SVBase_getBatchSignals2():
   assert (samples[3] == 0).all()
 
 
-def test_SVBase_getBatchSignals3():
+def test_GLOSv_getBatchSignals3():
   '''
   GLONASS SV signal generation: L2
   '''