基于多调频率CSS的混合业务传输方法  

Multi-service transmission method based on multi-chirp-rate CSS

作　　者：肇启明[1,2] 张钦宇[1] 张乃通[1,2] 

机构地区：[1]哈尔滨工业大学深圳研究生院,广东深圳518055 [2]哈尔滨工业大学电子与信息工程学院,黑龙江哈尔滨150001

出　　处：《通信学报》2011年第8期8-14,共7页Journal on Communications

基　　金：国家重点基础研究发展计划("973"计划)基金资助项目(2007CB310606)~~

摘　　要：提出了不同业务采用调频率不同的线性调频扩频(CSS)进行混合传输的新方法,在物理层上赋予业务差异化的传输质量。结合分数阶傅里叶变换等方法,能够对业务信号进行识别和分类。将多业务混合传输问题转化为同类业务变换域复用/多址设计和不同业务间干扰抑制问题。通过对不同业务信号频点、时隙的协同设计,并使用变换域滤波处理手段,能有效抑制业务间干扰。A novel multi-services transmission scheme based on multi-chirp-rate CSS was proposed,which provided dif-ferent quality of transmission to services on the physical layer.Using fractional fourier transform（FrFT）,signals of dif-ferent services could be recognized and classified.Multi-services transmission problem had been simplified into trans-form domain multiplexing/ multiple access design and suppress the interference of other different service signals.By the collaborative design of services frequencies and time slots,and application of filtering in transform domain,the problem of services signals interference had been settled.

关 键 词：多业务传输 业务分离 啁啾展频 变换域复用/多址 分数傅里叶变换 

分 类 号：TN911[电子电信—通信与信息系统]