High resolution, arbitrary-even-order direction finding method and device
US7969360B2 · kind B2 · utility
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3References
10Claims
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Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method of high-resolution direction finding to an arbitrary even order, 2q (q>2), for an array comprising N narrowband antennas each receiving the contribution from P sources characterized in that the algebraic properties of a matrix of cumulants of order 2q, C2(l), whose coefficients are the circular cumulants of order 2q, Cum[xi(t), . . . , xi(t), xi(t)*, . . . , xi(t)*], of the observations received on each antenna, for cumulant rankings indexed by l, are utilized to define a signal subspace and a noise subspace.
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