Detection and identification of stable PRI patterns using multiple parallel hypothesis correlation algorithms
US7657588B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 20, 2006 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Apr 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A linear detection method for determining correlation values associated with an estimated Pulse Repetition Interval (PRI) executed by a linear detection module of a correlation mask disposed on a digital signal processor is provided comprising: determining a correlation spread associated with a vector of Times-of-Arrival (TOA) data; determining a delta spread associated with the correlation spread; determining a first/next estimated PRI associated with the vector of TOA data; determining a first/next estimated PRI vector based on the first/next estimated PRI; determining a delta vector based on the first/next estimated PRI vector; determining a correlation weights vector based on the delta vector; determining a first/next correlation value based on the correlation weights vector; and in response to there being no additional PRIs to estimate, searching the correlation values for a highest correlation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.