Using the noise subspace matrix [U.sub.n], we can establish the 2D-MUSIC TOAs and AOAs spectrum function such as
Here, we have the M largest peaks of [f.sub.2D-MUSIC]([tau], [theta]) taken as the estimates of the TOAs and AOAs for the automotive targets.
Several range-based geolocation techniques have been used to estimate the target position including the time-of-arrival (TOA) [5-7], the time-difference-of-arrival (TDOA) [8, 9], the angle-of-arrival (AOA) [10-12], the received signal strength (RSS) [13-16] based techniques, or hybrid location techniques [17, 18].
Algebraic methods mainly include the TOA method [19] which uses the circles produced by range measurements at other sensors to find the position of the transmitter at the intersection of circles in two dimensions or spheres in three dimensions and the AOA method [10] which calculates the target position from the point of intersection of bearing lines.
As it turned our,
TOA has developed a mobile workforce management software that it says, among other things, allows businesses to reduce the service call window to one hour with 96 percent accuracy.
Teesside got a third shortly after when Dowson fired in from a
Toas free-kick.
When one unit replaces another in a theater of operations, the units must conduct a transfer of authority (
TOA) to ensure that the incoming unit is integrated seamlessly into the battle command structure and is prepared to assume the mission.
This facility enables rapid surge packing of modular Seabee Tables of Allowance (
TOA) into International Organization for Standardization (ISO) shipping containers for deployment to areas of operation worldwide or to the ships of the Maritime Prepositioned Force (MPF).
Teesside responded quickly with a ball flicked wide to
Toas whose strike drew a good save from the keeper.