[Paparazzi-devel] Reply to: distance measurement for landing. (gisela.noci)

[Chris]

I did more test today and i must say that i am very pleased from the 
quality of measurements i am getting.
I have placed the sensor on the wing far away from the propeller wash.

Hi.
Hardware Filtering on the power and signal lines from the sonar
together with software filtering (with a sort of prediction) does 
miracles and the measurements are stable, fast and reliable.
Anyway only after a couple test flights i will know for sure but for now 
this XL maxsonar looks very good indeed.
The way i selected to use the sonar is to enable the sonar from the 
flight plan after entering the final leg and when the code senses that 
the sonar is giving out good quality measurements then it signals that 
the sonar is available to be used as the main altitude sensor.

I guess that even if i get problems the SensComp's one will probably 
work fine.
To: address@hidden
Of course i am interested, i will try whatever i can and see what happens.
my email is hendrix at vivodinet dot gr
Chris