专用集成电路芯片上的载波恢复算法设计与实现  

Design and Realization of Carrier Recovery Algorithms for Application-Specific Integrated Circuit

作　　者：周星宇 ZHOU Xing-yu(Huawei Technologies Guangdong,Shenzhen 518129,China)

机构地区：[1]华为技术有限公司,广东深圳518129

出　　处：《数学的实践与认识》2021年第23期107-111,共5页Mathematics in Practice and Theory

摘　　要：光数字信号处理(DSP)芯片是光传输领域里的“心脏”,这种芯片往往基于专用集成电路(ASIC)实现.ASIC芯片的DSP算法设计通常包含两个主要步骤,第一步是根据信道损伤的物理模型设计补偿算法,此时只需要考虑浮点计算;第二步是根据芯片资源和功耗约束,将算法改造成ASIC芯片可实现的定点形式,此时需要将算法细化为芯片上最基本的乘、加等运算,并考虑定点量化噪声的影响.如何权衡性能和资源,实现具体场景下的最优设计,是DSP芯片算法工程领域持久不变的目标.Digital signal processing chips based on application-specific integrated circuit(ASIC),are the very heart of optical transmission system.The design of ASIC-DSP chips includes two major steps:The first is to design the compensation algorithm for aimed channel impairments,in which floating calculation is required.The second is to convert the float algorithm into ASIC-realizable fix point algorithms,under constrains of chip resource and power consumption.The algorithm should be realized by basic operations such as addition and multiplication,and the influence of fix point noise should be included.The goal of DSP design is to achieve an optimal balancing between performance and resource for certain scenarios.

关 键 词：数字信号处理 专用集成电路 芯片通信算法 定点化设计 

分 类 号：TN911.72[电子电信—通信与信息系统] TN929.1[电子电信—信息与通信工程]