RLE PROGRESS REPORT No. 119 JANUARY 1977 MASSACHUSETTS INSTITUTE OF TECHNOLOGY RESEARCH LABORATORY OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139 The Research Laboratory of Electronics is an interdepartmental laboratory in which faculty members and graduate students from numerous academic departments conduct research. The research in this laboratory for the half-year period ending December 31, 1976 was made possible by the support extended the Massachusetts Institute of Technology by the following agencies. Joint Services Electronics Program (U.S. Army, U.S. Navy, U.S. Air Force) Contract DAAB07-76-C-1400 U.S. Army-Electronics Command Contract DAAB03-75-C-0489 U.S. Army-Maryland Procurement Office Contract MDA 904-76-C-0328 Contract MDA 904-76-C-0331 U.S. Navy-Office of Naval Research Contract N00014-75-C-0951-NR 049-308 Contract N00014-76-C-0605 U.S. Air Force-Electronics Systems Division Contract F19628-75-C-0122 Contract F19628-76-C-0054 U.S. Air Force-Office of Scientific Research Contract F44620-72-C-0057 Contract F44620-76-C-0079 Grant AFOSR-76-2894 Grant AFOSR-76-2972 Grant AFOSR-76-3042 Grant AFOSR-77-3143 National Aeronautics and Space Administration Contract NAS5-21980 Contract NAS5-23731 Contract NAS5-22485 Grant NGR 22-009-013 Contract NAS5-22929 Grant NGR 22-009-526 Contract NAS5-23677 National Institutes of Health Grant 1 PO1 NS13126-01 Grant 5 RO1 GM22633-02 Grant 2 P01 GM19428-04 Grant 5 RO1 GM20370-04 Grant 5 PO1 HL14322-05 Grant 5 RO1 NS04332-14 Grant 1 RO1 GM22547-01 Grant 5 RO1 NS11080-03 Grant 1 RO1 NS11153-01 Grant 5 RO1 NS12307-02 Grant 1 RO1 NS11680-01 Grant 5 SO05 RR07047-11 Grant 1 RO1 NS12846-01 Grant 5 T32 GM07301-02 Grant 1 RO1 NS13028-01 Grant 5 T32 NS07040-02 Grant 2 RO1 NS10916-02 Grant 5 TO1 EY00090-03 Grant 3 RO1 EY01149-03S1 Grant 5 TO1 GM01555-10 National Institute of Mental Health Grant 5 P01 MH13390-10 National Science Foundation Grant AST73-05042-A03 Grant ENG75-06242-A01 Grant AST73-05043-A02 Grant ENG76-01654 Grant ENG71-02319-A02 Grant MPS75-04033 Grant ENG74-00131-A02 Grant PHY75-15421-A01 Grant ENG74-03996-A01 Grant SED74-12653-A01 Grant ENG74-24344 U. S. Energy Research and Development Administration Contract E (11-1) -2766 Contract EY-76-C-02-3070.*000 Associated Press (Grant) Bell Laboratories (Grant) California Institute of Technology Contract 953524 General Instrument Corp. Harvard University Subgrant G-79479 Purchase Order J. 24824 Massachusetts General Hospital Purchase Order F350847 M.I.T. Health Sciences Fund Grant 76-07 Grant 76-11 M.I.T. Sloan Fund for Basic Research Providence Gravure Inc. Williams College Purchase Order PHY-383N MASSACHUSETTS INSTITUTE OF TECHNOLOGY RESEARCH LABORATORY OF ELECTRONICS RLE PROGRESS REPORT NO. 119 January 1977 Submitted by: P. A. Wolff J. Allen FOREWORD This report, No. 119 in a series of Progress Reports issued by the Research Laboratory of Electronics, contains the customary annual statement of research objectives and summary of research for each group. Emphasis is on research progress for the halfyear period ending December 31, 1976, and the source of support is indicated for each project. Detailed reports of progress for individual projects longer be included in RLE Progress Reports. will no They may, at the discretion of the research supervisor, be issued individually as part of a new numbered series of RLE Research Reports. Persons interested in receiving reports in a particular field of research should write the research supervisor or the Document Room, Research Laboratory of Electronics, M. I. T., Room 36-412.