Measuring the Time delay of Arrival (TDOA) between a set of sensors is the
basic setup for many applications, such as localization or signal beamforming.
This paper presents the set of TDOA matrices, which are built from noise-free
TDOA measurements, not requiring knowledge of the sensor array geometry. We
prove that TDOA matrices are rank-two and have a special SVD decomposition that
leads to a compact linear parametric representation. Read More