| ??? 02/19/05 17:27 Read: times |
#87973 - increased resolution. Responding to: ???'s previous message |
Comes from the fact that in theory at least the auto-correlation of a prbs is a Dirac function,that is its infinetely large and of infinitely short duration,in practice what you get is when the prbs and the matched filter meet you gat a short duration spike at the output when all the stages are filled with a signal which is the time reversal of the filter taps.The maths gets squigly but you can show that this increases the snr by the length of the filter. |
| Topic | Author | Date |
| ultrasonic range finder code problem | 01/01/70 00:00 | |
| Correllation | 01/01/70 00:00 | |
| SensComp Application Notes | 01/01/70 00:00 | |
| A better idea | 01/01/70 00:00 | |
| DSP | 01/01/70 00:00 | |
| increased resolution. | 01/01/70 00:00 | |
| forgot | 01/01/70 00:00 | |
Why is it nessarry | 01/01/70 00:00 |