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Aggressive mode implemented.

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antirez
2013-01-15 01:41:10 +01:00
parent 0bf65d8646
commit dc91712741
2 changed files with 128 additions and 33 deletions
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README.md
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@ -173,6 +173,25 @@ resources:
* http://www.lll.lu/~edward/edward/adsb/antenna/ADSBantenna.html
* http://modesbeast.com/pix/adsb-ant-drawing.gif
Aggressive mode
---
With --aggressive it is possible to activate the *aggressive mode* that is a
modified version of the Mode S packet detection and decoding.
THe aggresive mode uses more CPU usually (especially if there are many planes
sending DF17 packets), but can detect a few more messages.
The algorithm in aggressive mode is modified in the following ways:
* Preamble detection is weakened to be more liberal in what is consdered valid.
* Up to two demodulation errors are tolerated (adjacent entires in the magnitude
vector with the same eight). Normally only messages without errors are
checked.
* It tries to fix DF17 messages trying every two bits combination.
The use of aggressive mdoe is only advised in places where there is low traffic
in order to have a chance to capture some more messages.
Debug mode
---