| dc.description.abstract | Providing defense against asymmetric threats under many di erent environmental
conditions requires broad spectrum sensing and presently underutilized polarization
sensitivity. In this thesis a novel pulsed radar sensing modulation scheme
is proposed, exploiting pseudorandomly switching polarization and polarity. The
scheme was designed for use in the terahertz (THz) regime while a scale model
demonstration has provided encouraging results. Polarization sensitivity and ranging
exceeding the pulsed radar range ambiguity limit have been achieved. Further, it
has been shown that multiple transmitters can operate simultaneously using di erent
PRBS with receiver rejection at the experiment noise oor. Antenna improvements
have been investigated with suggestions provided for THz implementation. Finally,
a novel demodulation algorithm is outlined that would enable demodulation in the
THz regime while also characterizing an object's RCS over frequency and polarization. | en |
