# Signals Intelligence System with Software-Defined Radio
## 2 Materials and Methods
### System Definition and Testing
#### 2.3.1 Database Preparation
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline
**x1019** & **y1019** & **x1020** & **y1020** & **x1021** & **y1021** & **x1022** & **y1022** & **x1023** & **y1023** & **Signal Type** \\ \hline \(-0.45076\) & \(1.10478\) & \(-0.1856\) & \(0.64641\) & \(-0.9659\) & \(0.899115\) & \(-0.4012\) & \(1.11271\) & \(-0.9343\) & \(1.59607\) & OOK \\ \hline \(-0.47253\) & \(0.70021\) & \(-1.1240\) & \(-0.14100\) & \(-0.7172\) & \(-0.34550\) & \(-0.0985\) & \(0.09081\) & \(-0.2915\) & \(-0.22092\) & OOK \\ \hline \(-1.28462\) & \(0.90529\) & \(-1.1670\) & \(1.40194\) & \(-1.6141\) & \(1.82038\) & \(-0.9490\) & \(0.94849\) & \(-1.4418\) & \(1.41291\) & OOK \\ \hline \(2.04260\) & \(0.88552\) & \(-0.9534\) & \(0.31089\) & \(-0.7389\) & \(0.28433\) & \(1.8731\) & \(1.49415\) & \(-1.4444\) & \(0.53098\) & OOK \\ \hline \(0.89088\) & \(-0.9180\) & \(-0.8321\) & \(-1.15516\) & \(-0.9828\) & \(-1.99567\) & \(0.3835\) & \(-2.0572\) & \(0.69115\) & \(-1.9829\) & OOK \\ \hline \(0.73978\) & \(0.03805\) & \(0.44139\) & \(-0.10834\) & \(-0.6532\) & \(-0.32199\) & \(0.2421\) & \(0.15308\) & \(0.39862\) & \(-0.0447\) & OOK \\ \hline \(0.78577\) & \(0.80630\) & \(0.60320\) & \(0.57282\) & \(1.96493\) & \(0.91334\) & \(1.6046\) & \(1.42700\) & \(1.34736\) & \(0.86987\) & OOK \\ \hline \(1.63378\) & \(-0.9829\) & \(1.97274\) & \(-1.25490\) & \(2.19556\) & \(-1.37564\) & \(1.8550\) & \(-0.9544\) & \(1.83814\) & \(-1.0191\) & OOK \\ \hline \(0.25819\) & \(-0.6573\) & \(0.80681\) & \(0.75041\) & \(-0.3655\) & \(0.03455\) & \(-0.1331\) & \(-0.5316\) & \(0.73205\) & \(-0.1081\) & OOK \\ \hline \(0.40146\) & \(-0.7679\) & \(0.43225\) & \(-1.04984\) & \(0.40157\) & \(-0.4904\) & \(1.4200\) & \(-0.6067\) & \(1.29762\) & \(0.16661\) & OOK \\ \hline \(0.15177\) & \(0.24965\) & \(1.31384\) & \(-0.16698\) & \(0.29710\) & \(0.78562\) & \(0.3318\) & \(0.10569\) & \(0.36850\) & \(0.03524\) & OOK \\ \hline \(0.03422\) & \(0.29903\) & \(-0.0877\) & \(0.56206\) & \(-0.1781\) & \(-0.5249\) & \(0.6347\) & \(-0.5458\) & \(-0.49536\) & \(0.23462\) & OOK \\ \hline \(-0.5372\) & \(2.06628\) & \(0.03052\) & \(1.27268\) & \(-0.8095\) & \(2.37430\) & \(-0.7922\) & \(1.83633\) & \(-0.2100\) & \(1.82892\) & OOK \\ \hline \(-0.7392\) & \(0.95289\) & \(-0.2851\) & \(-0.3817\) & \(-0.5303\) & \(-0.9066\) & \(-0.5611\) & \(0.2940\) & \(0.15348\) & \(-0.0672\) & OOK \\ \hline \(-0.2260\) & \(0.61379\) & \(0.22378\) & \(0.02137\) & \(0.61198\) & \(1.32059\) & \(0.5948\) & \(0.9102\) & \(0.13069\) & \(1.46314\) & OOK \\ \hline \(0.3956\) & \(-1.5370\) & \(0.05731\) & \(-1.3537\) & \(0.45965\) & \(-1.23965\) & \(0.1742\) & \(1.3631\) & \(0.25218\) & \(-0.76883\) & OOK \\ \hline \(-0.667\) & \(0.56353\) & \(-0.5090\) & \(-0.5318\) & \(-0.6956\) & \(0.00942\) & \(0.0730\) & \(-0.0128\) & \(1.05001\) & \(0.73621\) & OOK \\ \hline \(0.44468\) & \(-0.2177\) & \(-0.8782\) & \(0.49425\) & \(-0.3972\) & \(0.24064\) & \(-0.4030\) & \(-0.4172\) & \(0.45377\) & \(-0.0997\) & OOK \\ \hline \(-0.5291\) & \(-0.1094\) & \(-1.3187\) & \(-0.2140\) & \(-1.6114\) & \(-0.02267\) & \(-1.2830\) & \(-0.0612\) & \(-1.2743\) & \(-1.2096\) & OOK \\ \hline \(0.72163\) & \(-1.63625\) & \(-0.28000\) & \(-1.4672\) & \(-0.0985\) & \(-2.32118\) & \(0.2162\) & \(-1.7673\) & \(-0.4008\) & \(-2.1475\) & OOK \\ \hline \(-2.61193\) & \(-0.44331\) & \(-2.26963\) & \(-0.9480\) & \(-1.1219\) & \(-0.39465\) & \(-1.6755\) & \(-1.0483\) & \(-0.7783\) & \(-0.27 Each signal describing a modulation type consists of 1024 complex values. These complex values are divided into the real part and the imaginary part of the complex number. These are then arranged in rows describing each of the 1024 real values and 1024 complex values. Each column has a header describing the index of each value. At the end, a final column is inserted where the type of signal characterized by the input values is described. The headers are very important because they are used to train and then validate and test the AI model.