In the digital communication system, waveform distortion due to reflection of the multidrop transmission line is one of the main issues for high-speed signal transmission. Although many approaches to reducing the reflection, such as asymmetrical power splitter, stub series terminated logic, and the segmental transmission line have been used in the past, the drawbacks of amplitude loss at the receivers, or high power consumption due to excessively low impedance design are still problems. In this article, we introduce a new method, “reflection compensation line (RCL),” which is constructed in isometric length of main bus segments and stub lines. The method using the RCL intentionally generates reflections to cancel the distortion and restore the ideal waveform at the receivers. In order to reduce the waveform distortion effectively, an optimal set of transmission parameters is determined by means of evolutionary gradient search. The performance of the proposed method especially at the stub lines of both ends of the main bus line is confirmed using the SPICE simulation, and its applicability to practical systems is also discussed.

中文翻译：

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基于反射补偿线路的反射消除方案的多点传输系统

在数字通信系统中，由于多点传输线反射引起的波形失真是高速信号传输的主要问题之一。虽然过去使用了许多减少反射的方法，例如不对称功率分配器、短截线串联端接逻辑和分段传输线，但接收端的幅度损失或由于过低阻抗设计导致的高功耗的缺点仍然是问题。在本文中，我们介绍了一种新方法“反射补偿线（RCL）”，它是在主总线段和支线的等距长度中构建的。使用 RCL 的方法有意产生反射以消除失真并在接收器处恢复理想波形。为了有效降低波形失真，通过进化梯度搜索确定一组最佳传输参数。所提出的方法的性能，特别是在主总线两端的支线处，使用 SPICE 仿真得到了证实，并讨论了它在实际系统中的适用性。