Doppler estimation using a coherent ultrawideband random noise radar

Ram Mohan Narayanan; Muhammad Dawood; Robert D. Mueller; Robert D. Palmer

doi:10.1117/12.279480

24 September 1997 Doppler estimation using a coherent ultrawideband random noise radar

Ram Mohan Narayanan, Muhammad Dawood, Robert D. Mueller, Robert D. Palmer

Proceedings Volume 3161, Radar Processing, Technology, and Applications II; (1997) https://doi.org/10.1117/12.279480
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

An ultrawideband random noise (white Gaussian noise) radar system operating in the 1 - 2 GHz frequency range has been used to estimate the Doppler spectra of moving objects. A unique technique has been developed to introduce coherence into the system by performing heterodyne correlation of the received signal with the time delayed replica of the transmitted signal. This operation preserves the phase of the reflected signal which is generally lost in traditional homodyne correlation receivers. Knowledge of the phase of the received signal and its time dependence due to the motion of the target permits the system to be configured as a Doppler radar for detecting both linear and rotational motion. This paper describes the basic theory of random noise Doppler radar and presents simulated and experimental results obtained using the University of Nebraska's 1 - 2 GHz random noise radar system.

Citation Download Citation

Ram Mohan Narayanan, Muhammad Dawood, Robert D. Mueller, and Robert D. Palmer "Doppler estimation using a coherent ultrawideband random noise radar", Proc. SPIE 3161, Radar Processing, Technology, and Applications II, (24 September 1997); https://doi.org/10.1117/12.279480

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