通信

通信基础名词1.相干带宽和相干时间https://www.bilibili.com/video/BV1ZZgVzjEZ5/?spm_id_from=333.1387.upload.video_card.click&vd_source=a8bad5c878a2bca5d3412ea36a22a7ea 2.Fisher信息https://www.bilibili.com/video/BV13u3rzmE44/?spm_id_from=333.1387.upload.video_card.click&vd_source=a8bad5c878a2bca5d3412ea36a22a7ea 常见信道整理1.瑞利信道瑞利信道模型描述的是当发射端和接收端之间没有占主导地位的直射路径（Non-Line-of-Sight, NLOS）时，信号主要通过多个反射、衍射和散射路径传播的场景。如下图所示，信号会发生反射（Off buildings）、衍射（Over roof edges）、散射（Off trees and irregular...