More side-scan-sonar images

upthesaukee · 09-07-2008, 08:40 PM

Especially on the last four scans, if you look at the headings, which are compass headings (true degrees versus magnetic degrees), there are passes heading 071 degrees, mainly easterly, and 256 degrees, mainly westerly; there is also ones of 068 degrees and 143 degrees, giving different views of the same object. The frames also give you information as to looking to the right or looking to the left and I believe how many degrees of the heading of the boat.

You could almost make a circle, and with the headings (071) and the fact it is a right side scan of 085, keeping the center of the circle as the object, you could then plot the four different passes that Diver made to obtain these scans.

As a former air traffic controller, it does seem to make sense to me, and I hope that Diver will correct me if I am wrong.

09-07-2008, 08:40 PM	#10
upthesaukee Senior Member Join Date: Jan 2003 Location: Alton Bay Posts: 5,604 Blog Entries: 2 Thanks: 2,470 Thanked 1,983 Times in 1,083 Posts	Notice the headings Especially on the last four scans, if you look at the headings, which are compass headings (true degrees versus magnetic degrees), there are passes heading 071 degrees, mainly easterly, and 256 degrees, mainly westerly; there is also ones of 068 degrees and 143 degrees, giving different views of the same object. The frames also give you information as to looking to the right or looking to the left and I believe how many degrees of the heading of the boat. You could almost make a circle, and with the headings (071) and the fact it is a right side scan of 085, keeping the center of the circle as the object, you could then plot the four different passes that Diver made to obtain these scans. As a former air traffic controller, it does seem to make sense to me, and I hope that Diver will correct me if I am wrong. __________________ I Live Here... I am always UPTHESAUKEE !!!!