Judging by ETsd4's post: 1 degree bearing periods.
This method doesn't work well with near parallel bearing lines. If you only allow the bearings to change just a few degrees then course and range accuracy just plummets. Allow more time for the bearings to diverge. Wait until it is atleast 5 degrees. Then the hydrophone bearing inaccuracy is allot less influential.
Waiting for the exact time that a bearing flips to the exact next degree is a bit cheaty. There is no way the real hydrophone operator would know when that happens.
|