help understanding paper on multilateration (pdf provided)

Posted on 2009-02-12
Last Modified: 2012-06-27
ok... please download the pdf and help me understand a paragraph on the second page
under paragraph titled II. EUCLIDEAN AND DTOA SPACES

The first paragraph... I understand that Si is the location of the readers in the R2 space and i is the number of readers. But what is Sj here...

thanks in advance

Question by:jtiernan2008
    LVL 5

    Accepted Solution

    Gonna take a stab at this although I am no expert in this area - I believe k is the number of sensors and not i as you suggest. I think that Si and Sj simply represent two sensors.. sensor i and sensor j.
    LVL 9

    Assisted Solution

    Si is initially used to describe the set of points: S1, S2, S3... Sk.
    Later in the paragraph Si refers to any of those points. Sj is simply used to refer to any of the points other than Si.
    LVL 26

    Assisted Solution

    I think blahphish is correct.

    Si is the ith sensor located at (Xi, Yi)

    Sj is a different sensor.

    They need to use a different subscripts so they can refer to the
    arrival time differences between pairs of sensors:  dTij
    LVL 1

    Author Closing Comment

    Thanks for clarifying this...
    I'd say this is not the last you will see of me and this paper ;)

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