Preface -- Acknowledgments -- Contents -- Summary -- 1 Introduction -- 2 Overview of the Current National Radar System -- 3 Needs for the Next Generation System -- 4 Capabilities of Phased Array Radar -- 5 The MPAR Concept -- 6 The MPAR Planning Process -- 7 Evaluation of the Planning Process -- 8 Family of Systems -- 9 Concluding Thoughts -- References -- Appendix A STATEMENT OF TASK -- Appendix B ACRONYM LIST -- Appendix C BIOGRAPHICAL SKETCHES OF COMMITTEE MEMBERS AND STAFF.