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Dave,

The paper you cite refers to another in IEEE PLANS (Position, Location & 
Navigation Symposium) that discusses a replacement for the inertial 
navigation system for submarine navigation that was developed for the first 
Polaris submarines.

This second paper appears to resolve the issue that Alex and I were discussing 
regarding how long submarine INS systems were accurate, coming down more 
closely to the side of weeks rather than a day or two:

> Thus submarine navigation systems are designed to operate for days to weeks without an external fix....

The reference is:
D.W. Heckman and M. Baretela, �Improved affordability of high preci- sion 
submarine inertial navigation by insertion of rapidly developing fiber optic 
gyro technology,� in IEEE PLANS Conf., CA, 2000, PLANS-222291, pp. 404�410.

It would seem that these symposia would be of some interest to list members, 
although, clearly (!), they are directed primarily to electronic navigation 
rather than musty old sextants.

In general, I feel compelled to say I was overwhelmed by the number of IEEE publications.

Fred Hebard



On Apr 21, 2012, at 7:37 AM, Dave Walden wrote:

> Googling yields:
> 
> Stellar-inertial guidance capabilities for advanced ICBM
> 
> Rounds, S. F.; Marmar, G.
> IN: Guidance and Control Conference, Gatlinburg, TN, August 15-17, 1983, 
Collection of Technical Papers (A83-41659 19-63). New York, American 
Institute of Aeronautics and Astronautics, 1983, p. 849-855.
> This paper will discuss the capabilities and advantages of stellar-inertial 
guidance systems, particularly as they apply to the requirements of advanced 
ICBM systems. The principles of stellar-inertial guidance will be developed. 
Examples will be given, both simplified examples as aids in understanding the 
concepts, as well as realistic examples demonstrating the accuracy 
improvements provided by a stellar update. The capabilities of 
stellar-inertial guidance in meeting the requirements of dormancy, quick 
reaction, and basing adaptability, in addition to accuracy will be presented. 
Finally, the performance of a stellar sensor in a hostile environment will be 
discussed.
> 
> AND:
> 
> Strategic inertial navigation systems - high-accuracy inertially stabilized 
platforms for hostile environments
> 
> 
> This paper appears in:
> Control Systems, IEEE
> Date of Publication: Feb. 2008
> Author(s): Wang, H.G. 
> Boeing Co., Chicago 
> Williams, T.C. 
> Volume: 28, Issue: 1 
> On Page(s): 65 - 85 
> Product Type: Journals & Magazines
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