Scale model ultrawideband impulse radar

Michael A. Morgan

doi:10.1117/12.145528

28 May 1993 Scale model ultrawideband impulse radar

Michael A. Morgan

Proceedings Volume 1875, Ultrahigh Resolution Radar; (1993) https://doi.org/10.1117/12.145528
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The Transient Electromagnetic Scattering Laboratory (TESL) is described which employs a unique dual-channel ultra-wideband impulsive illuminating source. This is a free-field facility where targets are suspended within an anechoic chamber. A highly coherent primal step pulse is amplified by two GaAs wideband power amplifiers having complementary passbands which feed individual wideband horn antennas. This yields an effective 1 - 12 GHz impulse bandwidth. A high speed digital processing oscilloscope samples the output of a single receiving horn. The TESL has facilitated research into radar target identification using complex natural resonances. Theory and operational characteristics of the facility are discussed and technical improvements are described which have yielded significant improvement in both the effective bandwidth and the signal-to-noise ratio of transient scattering measurements. Experimental validations are shown which illustrate the level of fidelity attainable and consideration is given to recent enhancements, including an increase of measurement bandwidth to 50 GHz.

Citation Download Citation

Michael A. Morgan "Scale model ultrawideband impulse radar", Proc. SPIE 1875, Ultrahigh Resolution Radar, (28 May 1993); https://doi.org/10.1117/12.145528

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