21 May 2015 Instantaneous, stepped-frequency, nonlinear radar
Author Affiliations +
Abstract
Researchers have recently developed radar systems capable of exploiting non-linear target responses to precisely locate targets in range. These systems typically achieve the bandwidth necessary for range resolution through transmission of either a stepped-frequency or chirped waveform. The second harmonic of the reflected waveform is then analyzed to isolate the non-linear target response. In other experiments, researchers have identified certain targets through the inter-modulation products they produce in response to a multi-tone stimulus. These experiments, however, do not exploit the phase information available in the inter-modulation products. We present a method for exploiting both the magnitude and phase information available in the inter-modulation products to create an “instantaneous” stepped frequency, non-linear target response. The new approach enables us to both maintain the unambiguous range dictated by the fundamental, multi-tone separation and obtain the entire target signature from a single transmitted waveform.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenneth Ranney, Kenneth Ranney, Kyle Gallagher, Kyle Gallagher, Anthony Martone, Anthony Martone, Gregory Mazzaro, Gregory Mazzaro, Kelly Sherbondy, Kelly Sherbondy, Ram Narayanan, Ram Narayanan, } "Instantaneous, stepped-frequency, nonlinear radar", Proc. SPIE 9461, Radar Sensor Technology XIX; and Active and Passive Signatures VI, 946122 (21 May 2015); doi: 10.1117/12.2186620; https://doi.org/10.1117/12.2186620
PROCEEDINGS
8 PAGES


SHARE
Back to Top