Method and apparatus for locating an intruding radio frequency signal in a
wireless network. Relative distance measurements are computed between
pairs of receivers from a plurality of receivers to the source of the
intruding signal based on received signal strength. Loci of possible
locations are plotted, points of intersection are determined, and a
clustering algorithm is applied, yielding the location of the source of
the intruding signal. The invention is distinguished in that its
operation does not require knowledge of either the transmitted power or
antenna gain of the intruding signal source.