| 摘要 |
A method and apparatus for wireless location finding determines a set of likely locations from a signal covariance matrix R, a set of array calibration vectors {a( theta )}, and a set of calibrated signal covariance matrices {Rk} corresponding to calibrated locations. From these quantities, an angular energy distribution function B( theta ) is calculated from R and a( theta ), and compared to a set of calibrated angular energy distribution functions B1( theta ), . . . , BN( theta ) corresponding to the set of calibrated signal covariance matrices R1, . . . , RN. The function B( theta ) is then compared with each of the calibrated functions B1( theta ), . . . , BN( theta ) to determine those calibrated functions that most closely match the calculated function B( theta ). From these calculations a set of likely locations is then determined.
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