基于频谱回避的OFDM雷达失真控制研究

S. Pennock, C. Jenks
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引用次数: 1

摘要

正交频分复用(OFDM)调制/解调方案作为一种雷达调制方案正受到人们的关注。虽然优势体现在波形的保真度上,并且能够快速适应调制,但OFDM方案在过去被注意到在电子系统中存在非线性。为了减少非线性对OFDM雷达的影响,本文研究了频谱回避方案。在实验OFDM雷达上的测试表明,频谱回避方案确实可以降低非线性的影响。该方案不影响OFDM提供波形保真度和适应性的能力。
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Investigation into distortion control in OFDM radar by spectral avoidance
The Orthogonal Frequency Division Multiplexing (OFDM) modulation/demodulation scheme is finding interest as a radar modulation scheme. While advantages are seen in the fidelity of the waveforms generated, and the ability to adapt the modulation quite rapidly, OFDM schemes have been noted in the past to suffer in the presence of non-linearities in the electronic system. Here the spectral avoidance scheme is investigated in order to reduce the influence of non-linearities in OFDM radar. Measurements on an experimental OFDM Radar show that the spectral avoidance scheme can indeed reduce the influence of non-linearities. The scheme does not compromise the ability of OFDM to provide waveform fidelity and adaptability.
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