Experimental Investigation of a Direct Chaotic Signal Radar with Colpitts Oscillator

T. Jiang Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

J. Long Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

Z. Wang Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

S. Qiao Zhejiang University City College, Hangzhou 310015, China

W. Cui Xi'an Institute of Space Radio Technology, Xi'an 710000, China

W. Ma Xi'an Institute of Space Radio Technology, Xi'an 710000, China

J. Huangfu Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

L. Ran Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

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Abstract

Generated by an ordinary Colpitts oscillator, chaotic waveforms with bandwidth larger than several GHz can be readily obtained. A prototype of chaotic signal radar with Colpitts oscillator is set up to experimentally investigate the performance of chaotic signal in radar system. The correlation traces between the transmitted and reference signals are presented, whose spike point reveals the experimental transmission distance. Experimental results show that the proposed chaotic radar has the advantages of high range resolution, high range rate resolution, unambiguous correlation profile, high electronic counter countermeasure (ECCM), and low probability intercept (LPI).

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Experimental Investigation of a Direct Chaotic Signal Radar with Colpitts Oscillator

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Experimental Investigation of a Direct Chaotic Signal Radar with Colpitts Oscillator

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