Covert, Intelligent, and Spectrally-Efficient MIMO-Based Noise Radar Networks
Final rept. 1 Jan 2006-31 Dec 2008
PENNSYLVANIA STATE UNIV UNIVERSITY PARK OFFICE OF SPONSORED PROGRAMS
Pagination or Media Count:
The following tasks were accomplished 1 Distributed adaptive beamforming using noise waveforms The use of multiple radars for characterizing the radar cross section RCS of the target was investigated, and the RCS enhancement was quantified. A framework for inducing orthogonality in sequences and in polarization was developed to differentiate signals from various transmitters. Generalized Likelihood Ratio Test GLRT and Tapped Delay Line TDL beamforming were integrated. 2 RF tag approaches The concept of using notched frequency sub-bands within the ultrawideband UWB noise waveform was assessed to identify re-reflections from different tags. Using an array of notched tags around the target, it was possible to infer target orientation. A system design for communication between radar and RF tags using UWB noise waveforms is proposed. 3 MIMO-based networking A scheme for embedding multi-hop communication mechanism within the MIMO noise radar system was investigated for networking purposes. Orthogonal Frequency-Division Multiplexing OFDM was employed for communications, which was then inserted into notched sub-bands of the UWB noise signal. Multi-radar networked operation was proposed.
- Active and Passive Radar Detection and Equipment