Noncoherent signal models are widely applied to angular superresolution in forward-looking imaging radars. However, the relative phase influences the resolvability of the model in coherent applications. We reveal the reason why phase shifts affect deconvolution and propose a coherent signal model by replacing the antenna power pattern with the radiation pattern. REGU, TSVD, and IAA are utilized in numerical tests and simulations. Experimental results have demonstrated significant resolution improvements for forward-looking imaging in coherent scanning radars.

中文翻译：

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相干扫描雷达信号模型的角超分辨率

非相干信号模型广泛应用于前视成像雷达中的角超分辨率。然而，相对相位会影响相干应用中模型的可分辨性。我们揭示了相移影响解卷积的原因，并通过用辐射图替换天线功率图来提出相干信号模型。REGU、TSVD 和 IAA 用于数值测试和模拟。实验结果表明，相干扫描雷达的前视成像分辨率显着提高。