摘要
本文着重论述由于(S_0/N_0)_(FM)与1/ω~2成正比关系,以导致高频端信杂比降低,这在通信中是不允许的。为此采用“去加重、预加重”技术去解决。
In this paper, the author mainly discusses that SNR at the high frequency end is reduces due to(So/No) FM proportionates to 1/w^2. This is not permitted in communications. To solve the problem the deemphasis and preemphasis technologies are adopted.
