rollof中文什么意思

例句与用法

1. The emphasis of the thesis is base - band signal shaping and programmable interpolation algorithm . we introduce the basic theory of base - band signal shaping , and the effect of the digitizing of the ideal raised cosine rollof signal g ( t ) is attentioned . the shaping filter parameters are determined based on the system specifications , and the simulation results are given
   首先从降低邻近码间干扰原则出发,讨论了基带成形的基本原理与升余弦滚降滤波器的时频特性,重点分析将理想的滚降波形g ( t )数字化后对频谱的影响,并且根据系统指标,确定了各项参数,给出了具体的设计举例和仿真结果。