Position estimation
First Claim
1. A method for estimating the position of a receiver receiving code modulated signals from at least one beacon, said method comprising:
- delimiting a region containing said receiver position based on a code modulated signal received at said receiver from at least one beacon and on available information including at least an initial information on said receiver position; and
estimating said receiver position as a position within said delimited region which minimizes an error criterion, wherein said error criterion is at least one of a mean square error of a position within said delimited region, a mean absolute error of a position within said delimited region and a maximum error of a position within said delimited region.
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Accused Products
Abstract
The invention relates to a method for estimating the position of a receiver receiving code modulated signals from at least one beacon. The method comprises delimiting a region containing the receiver position based on a code modulated signal received at the receiver from at least one beacon and on available information including at least an initial information on the receiver position. The method further comprises estimating the receiver position as a position within the delimited region which minimizes an error criterion. The invention relates equally to such a receiver, to a system comprising such a receiver and to a corresponding software program product enabling an estimation of the position of a receiver.
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Citations
12 Claims
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1. A method for estimating the position of a receiver receiving code modulated signals from at least one beacon, said method comprising:
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delimiting a region containing said receiver position based on a code modulated signal received at said receiver from at least one beacon and on available information including at least an initial information on said receiver position; and
estimating said receiver position as a position within said delimited region which minimizes an error criterion, wherein said error criterion is at least one of a mean square error of a position within said delimited region, a mean absolute error of a position within said delimited region and a maximum error of a position within said delimited region. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A receiver comprising for an estimation of the position of said receiver:
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a receiving portion for receiving a code modulated signal from beacons; and
a processing portion for delimiting a region containing said receiver position based on a code modulated signal received by said receiving portion from at least one beacon and on available information including at least an initial information on said receiver position, and for estimating said receiver position as a position within said delimited region which minimizes an error criterion, wherein said error criterion is at least one of a mean square error of a position within said delimited region, a mean absolute error of a position within said delimited region and a maximum error of a position within said delimited region.
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8. A system for estimating the position of a receiver receiving code modulated signals from at least one beacon, said system comprising:
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said receiver, which includes a receiving portion for receiving code modulated signals from beacons; and
a device with a processing portion for delimiting a region containing said receiver position based on a code modulated signal received by said receiving portion from at least one beacon and on available information including at least an initial information on said receiver position, and for estimating said receiver position as a position within said delimited region which minimizes an error criterion, wherein said error criterion is at least one of a mean square error of a position within said delimited region, a mean absolute error of a position within said delimited region and a maximum error of a position within said delimited region. - View Dependent Claims (9, 10, 11)
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12. A software program product in which a software code for estimating the position of a receiver receiving code modulated signals from at least one beacon is stored, said software code realizing the following steps when running in a processing unit:
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delimiting a region containing said receiver position based on a code modulated signal received at said receiver from at least one beacon and on available information including at least an initial information on said receiver position; and
estimating said receiver position as a position within said delimited region which minimizes an error criterion, wherein said error criterion is at least one of a mean square error of a position within said delimited region, a mean absolute error of a position within said delimited region and a maximum error of a position within said delimited region.
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Specification