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Experimental Evaluation of SZ-2 Phase Coding to Mitigate Range Ambiguity

机译：SZ-2相编码的实验评估减轻范围模糊性

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Range ambiguity is a inherent problem of Doppler weather radar. At present, the most usual methods to mitigate the range ambiguity are batch mode and split cuts. These methods are simple, but when powers of the overlaid echoes are close to each other, these methods will fail. Doppler velocity and spectrum width displays characterize these failures by encoding locations of such overlaid powers with a purple color. This article gives the theory of using SZ-2 phase coding algorithm to mitigate the range ambiguity. Firstly, explains the feasibility of using this algorithm to mitigate range ambiguity in theory. Secondly, using the data of X-band D-Pol Doppler weather radar echo signals, analyzes and compares the range ambiguity mitigation performance of batch mode and SZ-2 phase coding algorithm, gets following preliminary results: compared to the batch mode, SZ-2 phase coding produces a significantly smaller amount of obscuration due to overlaid echoes and this algorithm satisfies the request of real-time processing.
机译：范围歧义是多普勒天气雷达的固有问题。目前，最常用的方法来缓解范围模糊性是批处理模式和分体式切割。这些方法很简单，但当覆盖回波的力量彼此接近时，这些方法将失败。多普勒速度和频谱宽度显示通过用紫色编码这种覆盖功率的位置来表征这些故障。本文给出了使用SZ-2相位编码算法的理论来减轻范围歧义。首先，解释使用该算法在理论上减轻范围模糊性的可行性。其次，使用X频段D-POL多普勒天气雷达信号的数据，分析和比较批量模式和SZ-2相位编码算法的范围模糊缓解性能，得到初步结果：与批处理模式相比，SZ- 2相位编码产生由于覆盖回波而产生的遮蔽量显着较小，并且该算法满足了实时处理的请求。

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