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Experimental Assessment of Joint Range-Doppler Processing to Address Clutter Modulation from Dynamic Radar Spectrum Sharing

机译：动态雷达频谱共享的联合距离多普勒处理解决杂波调制的实验评估

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Cognitive sense-and-avoid (SAA) and sense-and-notch (SAN) emission strategies have recently been experimentally demonstrated as effective ways in which to reduce the interference a spectrum-sharing radar causes to other in-band users. In both cases, however, it has been observed that when the spectral content occupied by the radar changes during the coherent processing interval (CPI) in response to dynamic radio frequency interference (RFI), a nonstationarity in the form of clutter modulation is induced that degrades clutter cancellation. Here the efficacy of joint range/Doppler processing is experimentally assessed for this problem through use of the non-identical multiple pulse compression (NIMPC) method. The additional degrees of freedom provided by this type of approach are shown to compensate for this clutter modulation effect to a significant degree, thus implying a benefit to joint range/Doppler processing in general.
机译：最近，通过实验证明了认知避免（SAA）和缺口（SAN）发射策略是减少频谱共享雷达对其他带内用户造成的干扰的有效方法。但是，在这两种情况下，已经观察到，当雷达所占的频谱含量在相干处理间隔（CPI）期间响应动态射频干扰（RFI）发生变化时，会引起杂波调制形式的非平稳性，降低杂波消除。在这里，通过使用不同的多脉冲压缩（NIMPC）方法，针对此问题，通过实验评估了联合测距/多普勒处理的功效。这种类型的方法提供的附加自由度显示为在很大程度上补偿了这种杂波调制效果，因此通常意味着对联合测距/多普勒处理有利。

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