跨可分辨海杂波区的长期非相干积分

H. Urkowitz, M. R. Allen
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引用次数: 4

摘要

采用空间变分杂波模型对海杂波的常规和长期积分性能进行了分析,并考虑了多路径积分引起的部分重叠的适用效果。结果表明,在空间变化的杂波中,由于缺乏空间平滑的能力,传统的积分性能大大降低。研究还表明,跨可分辨区域的长期积分提供了空间平滑,显著提高了检测性能。最后,研究表明,对于对抗掠海导弹的舰载雷达,与传统的累积探测相比,长期集成提供了约10 db的探测灵敏度提高,允许在海况4的10公里范围内以90%的概率探测-30 dBsm掠海导弹。
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Long term noncoherent integration across resolvable sea clutter areas
The authors analyze both conventional and long-term integration performance in sea clutter using the spatial variation clutter model, taking into account applicable effects of partial overlapping due to integration along multiple paths. It is demonstrated that conventional integration performance is greatly diminished in spatially varying clutter because of lack of ability to perform spatial smoothing. It is also demonstrated that long-term integration across resolvable areas provides for spatial smoothing, significantly enhancing detection performance. Finally, it is shown that for a shipboard radar against sea-skimming missiles, long-term integration provides around 10-dB increase in detection sensitivity over conventional cumulative detection, allowing detection of -30 dBsm sea-skimmers with 90% probability at 10 km range in sea state 4.<>
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