Noise and noise-like waveforms may be generated by random modulation of only the phase of a sequence of samples. Furthermore, the spectral characteristics of resulting waveform may be shaped by suitably constraining the statistics of the random phase modulations. This maximizes the Signal-to-Noise ratio of the output of a matched filter by shaping the autocorrelation of the resulting sequence.-4 -
Acknowledgements
A radar pulse may be divided into multiple frames, where each frame can be independently modulated. Furthermore, echo signals can be processed against the individual frames. This allows overcoming traditional limits on the observable near range being constrained to the delay for the entire pulse.-4 -
Acknowledgements
The Signal-to-Noise Ratio (SNR) of a radar echo signal will vary across a range swath, due to spherical wavefront spreading, atmospheric attenuation, and antenna beam illumination. The antenna beam illumination will depend on antenna pointing. Calculations of geometry are complicated by the curved earth, and atmospheric refraction. This report investigates optimizing antenna pointing to maximize the minimum SNR across the range swath.-4 -
Acknowledgements
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