Search radar track-before-detect using the Hough transform
Schleher, D. Curtis
MetadataShow full item record
Detection of small targets in the presence of noise and sea clutter interference presents a formidable task in a radar system design. Conventional radar detection schemes, such as spectral discrimination and noncoherent integration have been employed with limited success. This thesis suggests an improved target detection scheme, applicable to search radars, using the Hough transform image processing technique. The system concept involves a track- before-detect processing method which allows previous data to help in target detection. The technique provides many advantages compared to traditional techniques. These include improved detection for moving targets, a solution to the range walk problem and automatic tracking without the need to revisit. The improved detectability results from better use of old energy and spatially separated energy which is equivalent to using a three-dimensional filter matched to the target trajectories in addition to the conventional target parameters. The questions answered by this thesis concern the effectiveness of the Hough transform in achieving improved radar target detection and system detection performance, (i.e., probability of detection and false alarm rate as a function of signal to noise ratio). System design concepts are considered and a full environment simulation including sea clutter and noise is implemented to determine the algorithm efficiency and performance in various scenarios.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Radiation detection and classification of heavy oxide inorganic scintillator crystals for detection of fast neutrons Capps, Jacob W. (Monterey, California: Naval Postgraduate School, 2016-06);Improved detection of fast neutrons can help prevent illicit nuclear materials from being trafficked, and potentially used on American soil. To detect fast neutrons, most current systems use a multi-step process of ...
Delaney, Michael E. (1988);This thesis is a study in the infrared signature that a ship at sea will emit and how that signal can be used to improve the ability of the marine vehicle to detect and track targets. The need to develop marine infrared ...
Britton, Daniel A. (The United States of America as represented by the Secretary of the Navy, Washington, DC (US), 2003);An identification friend or foe system for use by a weapon to determine whether a target that has been selected is a friendly target comprises a signal source attached to the target and arranged to radiate encrypted signals. ...