WIP DSSS decoding

1 files changed, 34 insertions, 5 deletions

diff --git a/lab-windows/scratch.ipynb b/lab-windows/scratch.ipynb
index b35c76d..671bedf 100644
--- a/lab-windows/scratch.ipynb
+++ b/lab-windows/scratch.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -10,7 +10,9 @@
     "\n",
     "import numpy as np\n",
     "from matplotlib import pyplot as plt\n",
-    "import matplotlib"
+    "import matplotlib\n",
+    "\n",
+    "import scipy.signal as sig"
    ]
   },
   {
@@ -141,13 +143,40 @@
     "    ax.text(0.2, 0.2, f'mean={mean:.3}Hz, rms={rms*1e3:.3}mHz', ha='center', va='center', transform=ax.transAxes,\n",
     "            bbox=dict(boxstyle=\"square\", ec=(0,0,0,0), fc=(1,1,1,0.8)))"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "array([[ 2.35232554e-18,  4.70465108e-18,  2.35232554e-18,\n",
+       "         1.00000000e+00, -1.97549493e+00,  9.75650918e-01],\n",
+       "       [ 1.00000000e+00,  2.00000000e+00,  1.00000000e+00,\n",
+       "         1.00000000e+00, -1.97916324e+00,  9.79319515e-01],\n",
+       "       [ 1.00000000e+00,  2.00000000e+00,  1.00000000e+00,\n",
+       "         1.00000000e+00, -1.98597735e+00,  9.86134166e-01],\n",
+       "       [ 1.00000000e+00,  2.00000000e+00,  1.00000000e+00,\n",
+       "         1.00000000e+00, -1.99495144e+00,  9.95108965e-01]])"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "sig.butter(8, 20e-3, output='sos', fs=10.0)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "labenv",
+   "display_name": "winlabenv",
    "language": "python",
-   "name": "labenv"
+   "name": "winlabenv"
   },
   "language_info": {
    "codemirror_mode": {
@@ -159,7 +188,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.1"
+   "version": "3.7.6"
   }
  },
  "nbformat": 4,