SUBSIM Radio Room Forums



SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997

Go Back   SUBSIM Radio Room Forums > Modern-Era Subsims > Dangerous Waters
Forget password? Reset here

Reply
 
Thread Tools Display Modes
Old 02-18-06, 08:17 AM   #1
hachiman
Planesman
 
Join Date: Dec 2001
Location: Edinburgh Jockland
Posts: 199
Downloads: 33
Uploads: 0
Default Does the WAA help solve Towed Array ambiguity?

In a customer mission that the Towed Array instantly detected the only ship in the mission.
However the WAA gave readings only on the Eastern and not the Western Track.
So i assume therefore only the Starboard Hydrophones on the WAA were picking up sound and therefore resolving the ambiguity of the Towed Array without me having to make any turns to resolve the ambiguity?

Am i right?

Thanx
__________________
Whats not to love about Submarines? Long'Hard and full of Seamen!!
hachiman is offline   Reply With Quote
Old 02-18-06, 09:34 AM   #2
SeaQueen
Naval Royalty
 
Join Date: Jun 2005
Location: Washington, DC
Posts: 1,185
Downloads: 0
Uploads: 0
Default Re: Does the WAA help solve Towed Array ambiguity?

Quote:
Originally Posted by hachiman
In a customer mission that the Towed Array instantly detected the only ship in the mission.
However the WAA gave readings only on the Eastern and not the Western Track.
So i assume therefore only the Starboard Hydrophones on the WAA were picking up sound and therefore resolving the ambiguity of the Towed Array without me having to make any turns to resolve the ambiguity?

Am i right?

Thanx
Maybe. It would depend on whether you were able to determine if the WAA and towed array were, in fact, seeing the same target. Since the sensors have different properties, it's possible to see one target on one, and another target on the other.

The way to resolve this issue is to look on the narrowband display and see if the two contacts give off the same tonals. Unless you can see their full spectrum there's still a chance you can be wrong but after 2 or 3 tonals, depending on which ones they are, it might be worthwhile to chance it.
SeaQueen is offline   Reply With Quote
Old 02-18-06, 12:22 PM   #3
Bellman
Sea Lord
 
Join Date: Feb 2004
Posts: 1,945
Downloads: 220
Uploads: 0
Default

Yes Hachiman - broadly it can help to resolve TA ambiguity.

In MP, sometimes with a lot of traffic, you have to make decisions quickly and the SA contact is a good way of
resolving the ambigous contact and merging the two in TMA for a master contact.

I agree with SQs ''maybe'' - more caution may be necessary in some cases where target selection is critical
or where the contact may lie on a bearing near a potential target.

The new LwAmi 3.0, under test at present, resolves the SA bearing error so now you can get a very exact
intersection of the SA and TA tracks.
__________________

Liberty, Equality, Fraternity
Bellman is offline   Reply With Quote
Old 02-19-06, 01:28 AM   #4
LuftWolf
Ocean Warrior
 
Join Date: May 2005
Location: Free New York
Posts: 3,167
Downloads: 2
Uploads: 0
Default

Quote:
The new LwAmi 3.0, under test at present, resolves the SA bearing error so now you can get a very exact
intersection of the SA and TA tracks.
You've misread my notes.

The SW SA had previously lacked the setting that all other passive sonars had in the database regarding bearing error, even all other SW sonars, and now I assume after looking at the sonars countless times and countless times more that this is an oversite, so I have set the SA to be like all the other sonars in terms of bearing error.
__________________
LW
LuftWolf is offline   Reply With Quote
Old 02-19-06, 04:39 AM   #5
Bellman
Sea Lord
 
Join Date: Feb 2004
Posts: 1,945
Downloads: 220
Uploads: 0
Default

Indeed - not too difficult to 'misread' the eleven words covering the topic in your 'Working Issues.'
In fact short of any notes or readme in the Final (Beta) I am sure I may well have spent two days Testing
on many 'wild goose chase' apparent or real issues which will give rise to further 'misreadings.' Stand-by !

Still its all in a good cause.
__________________

Liberty, Equality, Fraternity
Bellman is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:29 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 1995- 2025 Subsim®
"Subsim" is a registered trademark, all rights reserved.