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Fixed some bugs where I was treating sample data as an integer. Allows use with UHD without multiplying everything up by 64K. =)

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Also changed the reference level printout to show dB instead of sample value. This seems more useful. 0dB is full scale.
This commit is contained in:
Nick Foster
2010-09-20 11:09:59 -07:00
parent 13c5acca52
commit 7727b7c902
9 changed files with 16 additions and 13 deletions
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13
src/python/cpr.py
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@@ -2,12 +2,15 @@
#from string import split, join
#from math import pi, floor, cos, acos
import math, time
#this implements CPR position decoding. local only for now.
#this implements CPR position decoding.
latz = 15
nbits = 17
my_lat = 37.76225 #update these later!
my_lon = -122.44254
#my_lat = 37.76225 #update these later!
#my_lon = -122.44254
#ER
my_lat = 37.40889176297184
my_lon = -122.07765340805054
def nz(ctype):
@@ -229,8 +232,8 @@ def range_bearing(loc_a, loc_b):
avg_lat = (a_lat + b_lat) / 2.0
R1 = earth_radius_mi*(1.0-esquared)/pow((1.0-esquared*pow(math.sin(avg_lat),2)),1.5)
R1 = earth_radius_mi*(1.0-esquared)/pow((1.0-esquared*pow(math.sin(avg_lat),2)),1.5)
R2 = earth_radius_mi/math.sqrt(1.0-esquared*pow(math.sin(avg_lat),2))
distance_North = R1*delta_lat