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jaseg 2020-03-09 13:47:08 +01:00
parent 9debe084fc
commit 000ced2b54
4 changed files with 40 additions and 40 deletions
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19
lab-windows/dsss_experiments-ber.ipynb
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@ -188,17 +188,9 @@
},
{
"cell_type": "code",
"execution_count": 130,
"execution_count": 134,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"start 14880 end 24800 rec 29760\n"
]
}
],
"outputs": [],
"source": [
"test_duration = 32\n",
"test_nbits = 5\n",
@ -211,11 +203,10 @@
"#test_data = np.array([0, 1, 2, 3] * 50)\n",
"test_data = np.array(range(test_duration))\n",
"signal = np.repeat(modulate(test_data, test_nbits, pad=False) * 2.0 - 1, test_decimation) * test_signal_amplitude\n",
"noise = colorednoise.powerlaw_psd_gaussian(1, len(signal)*3) * noise_level\n",
"noise[int(1.5*len(signal)):][:len(signal)] += signal\n",
"print('start', int(1.5*len(signal)), 'end', int(1.5*len(signal))+len(signal), 'rec', len(noise))\n",
"noise = colorednoise.powerlaw_psd_gaussian(1, len(signal)*10) * noise_level\n",
"noise[-int(1.5*len(signal)):][:len(signal)] += signal\n",
"\n",
"with open(f'dsss_test_signals/dsss_test_noiseless_padded.bin', 'wb') as f:\n",
"with open(f'dsss_test_signals/dsss_test_noisy_padded.bin', 'wb') as f:\n",
" for e in noise:\n",
" f.write(struct.pack('<f', e))"
]