SUBSIM Radio Room Forums - View Single Post

Rykaird · 02-12-07, 07:05 PM

I read the manual for the hydrophone tutorial, but it seemed to address only determining speed of the target, not the bearing.

I think there must be a way to determine heading from repeated bearing measurements using:

1) the time gaps between the bearing changes (hypothetical example - to move from a bearing of 60 to 65 degrees took 2 minutes, but from 65 to 70 degrees took 1 minute - this would imply he's closing).

and

2) a rough estimate of his speed (e.g., slow = 5 knots, medium = 9 knots).

I'll noodle on it some more. It seems like a series of triangles. And as we know, the triangle is all powerful.

02-12-07, 07:05 PM	#10
Rykaird Weps Join Date: Jan 2007 Posts: 356 Downloads: 36 Uploads: 0	I read the manual for the hydrophone tutorial, but it seemed to address only determining speed of the target, not the bearing. I think there must be a way to determine heading from repeated bearing measurements using: 1) the time gaps between the bearing changes (hypothetical example - to move from a bearing of 60 to 65 degrees took 2 minutes, but from 65 to 70 degrees took 1 minute - this would imply he's closing). and 2) a rough estimate of his speed (e.g., slow = 5 knots, medium = 9 knots). I'll noodle on it some more. It seems like a series of triangles. And as we know, the triangle is all powerful.