def _handler_ber(self, samples):
num = len(samples)/2
arr = numpy.zeros(num, numpy.float32)
for i in range(num):
old_err = self._err_array[self._err_index]
#record error
self._err_array[self._err_index] = _1s_counts[samples[i*2] ^ samples[i*2 + 1]]
self._num_errs = self._num_errs + self._err_array[self._err_index] - old_err
#increment index
self._err_index = (self._err_index + 1)%self._max_samples
self._num_samps = min(self._num_samps + 1, self._max_samples)
#write sample
arr[i] = float(self._num_errs)/float(self._num_samps*self._bits_per_symbol)
#write message
msg = blocks.message_from_string(arr.tostring(), 0, gr.sizeof_float, num)
self._msgq_source.insert_tail(msg)
def _handler_ser(self, samples):
num = len(samples)/2
arr = numpy.zeros(num, numpy.float32)
for i in range(num):
old_err = self._err_array[self._err_index]
#record error
ref = samples[i*2]
res = samples[i*2 + 1]
if ref == res:
self._err_array[self._err_index] = 0
else:
self._err_array[self._err_index] = 1
#update number of errors
self._num_errs = self._num_errs + self._err_array[self._err_index] - old_err
#increment index
self._err_index = (self._err_index + 1)%self._max_samples
self._num_samps = min(self._num_samps + 1, self._max_samples)
#write sample
arr[i] = float(self._num_errs)/float(self._num_samps)
#write message
msg = blocks.message_from_string(arr.tostring(), 0, gr.sizeof_float, num)
self._msgq_source.insert_tail(msg)