Abstract: A digital SAL receiver implements a multiobject tracking method to detect EM pulses transmitted by a known source at a pulse repetition interval (PRI) and returned off of a target object to acquire multiple tracks. Intra and inter track temporal information is used to associate pulses with different tracks and to rank the tracks in order to designate a primary track for the target object.

Abstract: A digital SAL receiver implements a multiobject tracking method to detect EM pulses transmitted by a known source at a pulse repetition interval (PRI) and returned off of a target object to acquire multiple tracks. Intra and inter track temporal information is used to associate pulses with different tracks and to rank the tracks in order to designate a primary track for the target object.

Abstract: Methods and apparatus for processing data from multiple sources according to various aspects of the present invention include a sensing system for determining target information. The sensing system includes sensors to generate target information and local trackers to receive the target information from the sensors. The local trackers may generate local target data for the target, and a combiner connected to the local trackers may use the local target data to generate global data for the target.

Abstract: Methods and apparatus for processing data from multiple sources according to various aspects of the present invention include a sensing system for determining target information. The sensing system includes sensors to generate target information and local trackers to receive the target information from the sensors. The local trackers may generate local target data for the target, and a combiner connected to the local trackers may use the local target data to generate global data for the target.

Abstract: The semi-active laser (SAL) last pulse logic seeker utilizing a focal plane array is obtained by combining the semi-active laser last pulse logic sal processing using a single PIN photodiode with a staring imaging infrared (I.sup.2 R) focal plane array detector, such as InSb. The result is an improvement that renders the seeker capable of operating in three different modes: SAL only, I.sup.2 R only or simultaneous multi-spectral processing in SAL/I.sup.2 R. The improvement uses a single PIN photodiode detector with an imaging infrared focal plane array (I.sup.2 R FPA) detector to correlate the temporal laser returns of the former with the spatial laser returns of the latter which enables the SAL last pulse return, indicative of the true target, to be identified on the I.sup.2 R FPA. To facilitate the correlation process, the FPA can be divided into regions-of-interest (ROI) that are analyzed to determine which temporal laser pulse falls in which particular ROI.

Abstract: A bow stand for a boat trailer has a swingable bow arm assembly pivotally mounted on the bow stand post or column. A base plate permits mounting on the trailer tongue and a winch plate on the top of the post positions the boat winch above the base plate. The bow arm assembly is mounted on a transverse pivot to the post and carries a bow stop, e.g. a bow roller, at its free end. A spring yieldably urges the bow arm assembly to its normal raised position where the stop limits forward movement of the boat on the trailer. The spring permits the bow stop to deflect downward during boat launch to prevent the boat from hanging up on the bow stop when the boat is released from the trailer.