Abstract: A golf ball cleaning device carried by the user for the purpose of cleaning his or her golf ball prior to “teeing of” or putting. The device consists of a plastic spray bottle, a towel or cloth, which is removable, attached to the bottle and device for fastening the entire unit to the user's golf bag. The device allows the user to fasten the spray bottle and towel unit to his or her golf bag and quickly and conveniently unfasten the unit upon reaching the green. After properly marking the ball on the green, the user is able to spray the contents of the bottle onto his or her golf ball and, by utilizing the attached towel, clean and dry the golf ball prior to putting. After putting, the unit is again conveniently fastened to the users golf bag utilizing the swivel clip.

Abstract: A method is provided to compress and display received data from a toroidal olume search sonar (TVSS) in terms of horizontal range. For any TVSS receive beam having a horizontal component projection that is equal to or greater than a selected horizontal range, the data values occurring at that selected horizontal range are averaged to form a compressed data value. Range dependent weight factors are applied during the averaging process so that the effects of surface and bottom reverberation do not bias the compressed data value. The compressed data value can then be displayed as a function of horizontal range for a series of sonar pings in order to provide a time history.

Abstract: An apparatus and method for beamforming for a toroidal volume search sonar. onar array vehicle motion is used to reduce reverberation by fixing beams geometrically in space to prevent beam contact, prior to a specified range, with the sea surface or sea bottom interfaces. Reverberation is further reduced by creating a composite beam from one scanned beam containing the target dominated by surface reverberation and another dominated by bottom reverberation. A correlation and averaging procedure is applied to the two scanned beams to further reduce the reverberation in the composite beam. To further reduce reverberation, the two beams selected for correlation and averaging processing are chosen such that the number of common elements associated with the two beams is a minimum within a given angular separation.