IEEE SIGNAL PROCESSING MAGAZINE Special Issue on Knowledge Based Systems for Adaptive Radar Detection, Tracking and Classification Guest-Editors: Fulvio Gini (f.gini@ieee.org), J. Scott Goldstein (goldsteinja@saic.com), Michael D. Zoltowski (mikedz@ecn.purdue.edu) Call for Papers Knowledge-based systems (KBS) use prior knowledge to improve the performance of deterministic and adaptive systems. While the exact form of this prior knowledge is problem-dependent, the KBS consists of a knowledge base containing information specific to a problem domain and an inference engine that employs reasoning to yield decisions. KBS have been built: some are very complex with thousands rules while others, relatively simple, are designed to tackle very specialised tasks. The aim of this special issue is to showcase recent research in both knowledge-based systems and radar signal processing together in the same forum, in order to present a range of perspectives and innovative results with potential to enable practical adaptive radar systems. Tutorial papers should review the current developments in the area and present examples of improved radar performance for augmented and upgraded systems, and project the impact of KB technology on future systems. Papers are solicited from the following list of topics, covering current broad research thrusts: fundamentals of relevant knowledge-based techniques; knowledge-based solutions as they apply to the general radar problem; KBS application to constant false alarm rate processor; knowledge-based control for space time adaptive processing; knowledge-based techniques applied to existing radar systems, e.g. kb tracking; integrated end-to-end radar signal and data processing with over-arching knowledge-based control. The list is not exhaustive, as quality works addressing other related issues are also welcome. Submission Procedure: Prospective authors should submit white papers via the website http://www.cspl.umd.edu/spm/ Important Deadlines: White paper due: December 15, 2004 Invitation notification: January 15, 2005 Manuscript due: May 15, 2005 Acceptance notification: August 15, 2005 Final manuscript due: September 15, 2005 Publication date: January 2006