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方位历程显示已被证明为检测信号的有效手段。数字式声呐的多波束数据与调亮显示系统之间存在着一个接口,它有可能使信号处理系统已获得的增益受到损失。选择合理的算法会使这种损失减到最小。本文提出的灰度级转换算法(GSC)是一种实时的数字运算技术。在输入信噪比较低时会使弱信号的检测能力有所改善,同时又对强信号的检测不会有严重的影响。本文提出的算法易于由硬件实现。计算机模拟实验的结果与理论一致。文中给出了硬件设计的概要说明。
Azimuth display has proven to be an effective means of detecting signals. There is an interface between digital sonar multi-beam data and a brighter display system that can potentially lose the gain already achieved by the signal processing system. Choosing a reasonable algorithm will minimize this loss. The proposed gray-scale conversion algorithm (GSC) is a real-time digital computing technology. When the input signal to noise ratio is low, the detection ability of weak signals will be improved, while the strong signal detection will not have a serious impact. The proposed algorithm is easy to implement by hardware. The result of computer simulation experiment is consistent with the theory. The article gives a brief description of the hardware design.