System and method for determining attitude using spatial shift key (SSK) modulation signatures
US7936305B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Dec 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An attitude system that includes a radiating means which moves predeterminately through three-dimensional space, such that a cyclic Doppler is superimposed upon a transmitted signal; receiving this transmitted signal through a receiving means which moves predeterminately through three-dimensional space, such that a cyclic Doppler is superimposed upon the received signal; analyzing the movement of the receive means in relation to the radiating means by interpreting the received cyclic Doppler; and determining attitude based on the interpreted Doppler. Or alternatively, adjusting the movement of the receive means in three-dimensional space so the superimposed cyclic Doppler is minimized on the received signal and; determining attitude based on the adjustment required to bring the receive means and radiating means into an alignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.