The emphasis of this letter is on the design of DFRC waveform for ground-air system under inaccurate target angle. The desired covariance matrix is considered to have the best radar performance in the ...

The system uses photovoltaic-thermal (PVT) collectors as the solar source, a U-tube borehole heat exchanger (BHE) for the ground source, and a finned coil heat exchanger (FCHE) for the air source.