作者AUOleader (卓越)
站内comm_and_RF
标题[问题] 通讯原理问题
时间Tue Oct 30 22:56:22 2012
1. For PAM, PSK, QAM, and orthogonal modulated signals, what information does
the receiver needs in order to recover the data carried on the received
signal?
2. Once the receiver projects the received signal (with noise) onto the
signal space and uses the information from question 1 to find the received
signal's coordinate, from this coordinate how do you guess which
constellation point was transmitted?
希望大家能帮忙解或一般 因为观念不是很清楚
谢噜
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◆ From: 111.248.111.245
1F：推 mmmbop:看课本抄定义 第1题就解出来了 111.248.185.78 11/04 00:40
2F：→ mmmbop:第二题要看杂讯的统计特性才有好的猜法 111.248.185.78 11/04 00:41