Added SKA models

features_to_add.txt

@@ -1,5 +1,4 @@
 Suggested future features:
  - Keep track of which pulsars are found in which surveys?
- - RRATs? 
+ - RRATs / nullers -- just have a switch for a on fraction?
  - Binary parameters & effect on SNR (cf. Bagchi paper)
- - Scintillation effects?

lib/python/populate.py

@@ -487,7 +487,7 @@ def _sindegree(angle):
 
  # pulse width model
  parser.add_argument('-w', type=float, required=False, default=6,
- help='pulse width, percent (def=6%) ')
+ help='pulse width, percent (def=6) ')
 
  # spectral index distribution
  parser.add_argument('-si', nargs=2, type=float,

lib/python/survey.py

@@ -52,7 +52,7 @@ def __init__(self, coord1, coord2, coordtype, gain, tobs):
 
 class Survey:
  """Class to store survey parameters and methods"""
- def __init__(self, surveyName):
+ def __init__(self, surveyName, pattern='gaussian'):
  """Read in a survey file and obtain the survey parameters"""
 
  # try to open the survey file locally first
@@ -76,7 +76,7 @@ def __init__(self, surveyName):
  # initialise the pointings list to None
  # only change this is there is a list of pointings to be used
  self.pointingslist = None
- self.gainpat = 'gaussian' 
+ self.gainpat = pattern 
 
  # adding AA parameter, so can scale s/n if the survey is
  # an aperture array

lib/surveys/SKA_aa_400

@@ -2,8 +2,8 @@
 # model of the Parkes multibeam survey - main parameters
 ###############################################################################
  1.0 ! survey degradation factor
- 13.4 ! antenna gain (K/Jy)
- 600 ! integration time (s)
+ 23.4 ! antenna gain (K/Jy)
+ 1800 ! integration time (s)
  0.10 ! sampling time (ms)
  43. ! system temperature (K)
  300 ! centre frequency (MHz)
@@ -17,8 +17,8 @@
  30. ! maximum DEC (deg)
  -180 ! minimum Galactic longitude (deg)
  180. ! maximum Galactic longitude (deg)
- 0. ! minimum abs(Galactic latitude) (deg)
- 15. ! maximum abs(Galactic latitude) (deg)
+ 5. ! minimum abs(Galactic latitude) (deg)
+ 90. ! maximum abs(Galactic latitude) (deg)
  1.0 ! fractional survey coverage (0-1)
  9.0 ! signal-to-noise ratio
  AA ! Aperture Array

lib/surveys/SKA_mid_allsky_band1

@@ -0,0 +1,23 @@
+###############################################################################
+# model of the Parkes multibeam survey - main parameters
+###############################################################################
+ 1.0 ! survey degradation factor
+ 3.64 ! antenna gain (K/Jy)
+ 600 ! integration time (s)
+ 0.1 ! sampling time (ms)
+ 28. ! system temperature (K)
+ 1000 ! centre frequency (MHz)
+ 150 ! bandwidth (MHz)
+ 0.009 ! channel bandwidth (MHz)
+ 2 ! number of polarizations
+ 65.5 ! full-width half maximum (arcmin)
+ 0. ! minimum RA (deg)
+ 360. ! maximum RA (deg)
+ -90. ! minimum DEC (deg)
+ 30. ! maximum DEC (deg)
+ -180 ! minimum Galactic longitude (deg)
+ 180. ! maximum Galactic longitude (deg)
+ 0. ! minimum abs(Galactic latitude) (deg)
+ 90. ! maximum abs(Galactic latitude) (deg)
+ 1.0 ! fractional survey coverage (0-1)
+ 9.0 ! signal-to-noise ratio

lib/surveys/SKA_mid_allsky_band2

@@ -0,0 +1,23 @@
+###############################################################################
+# model of the Parkes multibeam survey - main parameters
+###############################################################################
+ 1.0 ! survey degradation factor
+ 4.5 ! antenna gain (K/Jy)
+ 1800 ! integration time (s)
+ 0.1 ! sampling time (ms)
+ 20. ! system temperature (K)
+ 1400 ! centre frequency (MHz)
+ 300 ! bandwidth (MHz)
+ 0.009 ! channel bandwidth (MHz)
+ 2 ! number of polarizations
+ 4.5 ! full-width half maximum (arcmin)
+ 0. ! minimum RA (deg)
+ 360. ! maximum RA (deg)
+ -90. ! minimum DEC (deg)
+ 30. ! maximum DEC (deg)
+ -180 ! minimum Galactic longitude (deg)
+ 180. ! maximum Galactic longitude (deg)
+ 0. ! minimum abs(Galactic latitude) (deg)
+ 90. ! maximum abs(Galactic latitude) (deg)
+ 1.0 ! fractional survey coverage (0-1)
+ 9.0 ! signal-to-noise ratio