数字扫描变换器是B超诊断仪中的一个关键部件。本文提出了一种新颖的数字扫描变换器设计方案。它以递推算法和圆插补技术为基础,采用小存储器结构,不仅获得了失真小的高质量图像,而且具有部件成本低、硬件规模小等特点。实践证明,它具有很高的性能价格比与推广应用价值。文中详细说明了系统的工作原理,并给出了有关的实验结果。 Digital Scan Converter is a key component in B-Ultrasound. This paper presents a novel digital scan converter design. Based on recursive algorithm and round interpolation technology, it adopts small memory structure to obtain not only high quality image with small distortion, but also low component cost and small hardware scale. Practice has proved that it has a high cost performance and promote the use of value. The paper describes in detail the working principle of the system, and gives the relevant experimental results.