Direction of arrival estimation apparatus and method thereof
US8531917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2010 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/808
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for estimating a Direction of Arrival (DOA) of a wideband includes a first signal receiving unit and a second signal receiving unit to receive a wideband signal while satisfying d≦Mc/2fs, wherein ‘d’ denotes a distance the first signal receiving unit and the second signal receiving unit are spaced apart from each other, ‘c’ denotes the speed of sound, ‘M’ denotes a number of wideband frequencies being a number of fast Fourier transformation (FFT) points of a wideband signal, and ‘fs’ denotes a sampling frequency, and a DOA calculating unit to calculate a DOA (θ) using a normalized frequency ( f) which is obtained by performing an FFT on the respective wideband signals transmitted from the first signal receiving unit and the second signal receiving unit, and using the distance d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.