Locating and ranging using coherent array reconciliation tomography
US10061012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Aug 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S1/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A ranging and tracking system and method employs a Coherent Array Reconciliation Tomography (CART) approach that benefits from a series of samples gathered from deployed receivers in an area of interest, and applies a sequence of matrix operations and transformations to data defining locations in a Cartesian grid space for summing constructive characteristics in a received waveform for identifying a leading edge indicative of a time of arrival (TOA) from a signal source, and computing a metric based on the distance to the signal source. Sampled waveform information (data) from multiple locations in the area of interest allows computation of a likelihood metric for each location in the grid space of containing the signal source. Rendering of the grid space location having the highest likelihood metric illustrates a position of the signal source, and may be graphically depicted clustering of the locations depicting a high likelihood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.