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众所周知,利用阵列处理技术实现多波束形成是大多数声呐和雷达系统的关键步骤。波束形 成技术发展多年,己较成熟。本文讨论利用被动声呐的阵列输出以检测和定位宽带声源的多波束形 成方法。所用芯片为 AD公司推出的最新 DSP芯片 ADSP-21060 SHARC。对于时域偏重于讨论 技术实现,对于频域则讨论实验模拟,并根据芯片特点对两种方法进行了比较。
It is well-known that the use of array processing to achieve multi-beamforming is a key step in most sonar and radar systems. Beamforming technology has been developing for many years and has been relatively mature. This article discusses a multi-beamforming method that uses an array output of a passive sonar to detect and locate a wideband source. The chip used for the AD company introduced the latest DSP chip ADSP-21060 SHARC. For the time domain emphasis on the discussion of technology to achieve, for the frequency domain discusses the experimental simulation, and according to the chip features of the two methods were compared.