def getDecimation(source_signal):
#getting source singal length
sig_len = len(source_signal)
# Copy source signal (in order to not interfere source signal)
sig1_ = copy.deepcopy(source_signal)
# Creating list for storing signals
decimation_list = list()
#Geting coprimes of sign len e.g len= 256 coprimes = [1,3,5,7 ... 255]
# index 1 because of coprimes method return tuple of 2element
# (the number of total coprimes, and list of coprimes)
#
coprime_list = coprimes(sig_len)[1]
# For each coprime of source signal length we will create a signal using decimation
for i in range(len(coprime_list)):
# tmp for signal we are going to get with decimation
sig2_ = [0 for i in range(sig_len)]
# creating rest signals with decimation
decimation(sig1_, sig2_, coprime_list[i])
# appending decimation_list with list
# that contains decimated sig and
# decimation coefficient that used to create that sig
decimation_list.append([sig2_, coprime_list[i]])
return decimation_list
def get_decimation(self):
# Copy source signal
sig1_ = copy.deepcopy(self.__table[5])
decimation_list = list()
coprime_list = cal.coprimes(self.__p - 1)[1]
for i in range(len(coprime_list)):
# tmp for signal we are going to get with decimation
sig2_ = [0 for i in range(self.__p - 1)]
# creating rest signals with decimation
modules.arr_procedures.decimation(sig1_, sig2_, coprime_list[i])
# appending decimation_list with list
# that contains decimated sig and
# decimation cof that used to create that sig
decimation_list.append([sig2_, coprime_list[i]])
return decimation_list
import modules.arr_procedures
from modules import arr_procedures as ap, calculations as cal
from classes.CDS import CDS
from classes.Hadamar import Hadamar
if __name__ == "__main__":
# only for 256
p = 257
# Creating object CDS
c = CDS(p)
# Print General Info
print("P = {0}\nL = {1}".format(p, p - 1))
print("ϕ({0}) = {1}".format(p - 1, cal.coprimes(p - 1)))
print(("ϴmin = {0}".format(cal.findPrimitive(p))))
ap.print_2d_arr(c.table)
# decimated signals and coef
decimation_signals = c.get_decimation()
h = Hadamar(p - 1)
hadamar_sig_list = h.getHadamMatrix()
# Decimated signals without first sig(because its the same as source)
b = list()
for item in decimation_signals:
# we only need signals so use 0th pos
b.append(item[0])
b.pop(0)
# cal.printPair(d)
def print_general_info(self):
print("P = {0}\nL = {1}".format(self.__p, self.__p - 1))
print("ϕ({0}) = {1}".format(self.__p - 1, cal.coprimes(self.__p - 1)))
print(("ϴmin = {0}".format(self.get_teta_min())))