Analysis of an LTE waveform for radar applications

Previous research has shown communication waveforms have potential for passive and active radar applications. The potential of a signal is typically characterized using the ambiguity function. This paper seeks to summarize the frequency division duplex (FDD) long term evolution (LTE) downlink (DL) signal structure and illustrate its effect on the signal's self and cross ambiguity functions. In addition, performance limitations resulting from the FDD LTE DL signal structure are predicted. The variability of system performance limitations is considered for variable FDD LTE DL signal parameters. Lastly, simulated range profiles are produced using a simulated FDD LTE DL signal illustrating the derived results.