Accession Number:

ADP003621

Title:

Strapdown System Algorithms

Descriptive Note:

Corporate Author:

STRAPDOWN ASSOCIATES INC MINNETONKA MN

Personal Author(s):

• Savage, Paul G.

Report Date:

1984-04-01

Pagination or Media Count:

30.0

Abstract:

This paper addresses the attitude determination, acceleration transformation, and attitudeheading output computational operations performed in modern-day strapdown inertial navigation systems. Contemporary algorithms are described for implementing these operations in real-time computers. The attitude determination and acceleration transformation algorithm discussions are based on the two-speed approach in which high frequency coning and sculling effects are calculated with simplified high speed algorithms, with results fed into lower speed higher order algorithms.

Descriptors:

• *ALGORITHMS
• *INERTIAL NAVIGATION
• ACCELEROMETERS
• ATTITUDE INDICATORS
• DIRECTION FINDING
• NAVIGATION COMPUTERS
• VIBRATION

Subject Categories:

• Numerical Mathematics
• Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE