Optical was originally the starting point, but there were concerns such=20 as detecting the target when there are other items on the field, and=20 bright sunlight etc affecting the cameras. Cheers, -Neil. On 10/7/2019 3:00 PM, Gordon Williams wrote: > Have you thought about doing it optically? A few cameras around the > field, your object painted in a unique colour and some simple computer > vision programming. Have a look at opencv. > > Gordon Williams > > > On 2019-10-07 2:04 p.m., Neil wrote: >> THIS is what I'm concerned about, and know little about. But it's a >> mostly open field, so hoping there's minimal of that. Also considering >> that if I add one or two more receivers, that perhaps the code can >> figure out which signal is unrealistic and eliminate that from the >> calculation. >> >> Cheers, >> -Neil. >> >> >> >> >> >> On 10/7/2019 11:59 AM, David Van Horn wrote: >>> Reflections and multipath will drive you nuts. >>> >>> -- >>> David VanHorn >>> Lead Hardware Engineer >>> >>> Backcountry Access, Inc. >>> 2820 Wilderness Pl, Unit H >>> Boulder, CO 80301 USA >>> phone: 303-417-1345 x110 >>> email: david.vanhorn@backcountryaccess.com >>> >>> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .