Tdma cellular pcs - authentication , encryption of signaling information user data , and privacy Tdma蜂窩pcs .信令信息用戶數(shù)據(jù)和隱私的鑒別和加密
In many applications , it is required to monitor the activities of these signals , identify their characteristics , even to intercept the signal information content 在許多應用中,需要監(jiān)視通信信號的活動情況,區(qū)分信號的性質,甚至截獲其傳輸?shù)男畔热荨?
Given a received communication signal , the objective of modulation recognition is to decide the modulation format and estimate the modulation parameters of the communication signal without any priori knowledge about the signal information content 給定一段接收的通信信號,調制識別的目的就是在未知調制信息內容的前提下,判斷出通信信號的調制方式,并估計出相應的調制參數(shù)。