Accession Number : ADA621168


Title :   Multidimensional Signal Processing for Sensing & Communications


Descriptive Note : Final rept. 1 Jun 2012-31 May 2015


Corporate Author : KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE


Personal Author(s) : Blunt, Shannon D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a621168.pdf


Report Date : 29 Jul 2015


Pagination or Media Count : 42


Abstract : The objective of this effort was to enhance sensitivity for radar and multi-mode communication systems in the presence of interference, which can be coupled across the dimensions of space, slow-time, and fast-time according to the operating mode. In particular, the effort focused on waveform-diverse emission schemes including MIMO radar, pulse-agile radar, and intra-pulse radar-embedded communications. Leveraging the notion of STAP used for clutter cancellation in airborne/space radar, the increase in degrees of freedom afforded by multidimensional coupling was explored to improve receive detection/estimation performance via the resulting increased diversity of the transmit signal. This effort addressed the mathematical modeling and optimization of multidimensional emissions through the use of analytical structures for physical waveform implementation. Likewise, appropriate structures for interference cancellation on receive were investigated. The waveform-diverse embedding of LPI communications into radar clutter was likewise examined.


Descriptors :   *COMMUNICATION AND RADIO SYSTEMS , *RADAR CLUTTER , *RADIOFREQUENCY INTERFERENCE , *SIGNAL PROCESSING , ADAPTIVE SYSTEMS , COUPLING(INTERACTION) , DEGREES OF FREEDOM , EMISSION , INPUT OUTPUT DEVICES , MATHEMATICAL MODELS , MULTICHANNEL COMMUNICATIONS , NETWORK ARCHITECTURE , NONLINEAR SYSTEMS , OPTIMIZATION , POLARIZATION , PULSE COMPRESSION , SENSITIVITY , SPATIAL DISTRIBUTION , TRANSMITTER RECEIVERS , VOLTAGE , WAVEFORMS


Subject Categories : Computer Systems
      Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE