In the point of - information theory ; - the - baseband binary pulse amplitude modulated ( pam ) signal transmission , via turning the nonlinear receiver ' s parameters , is studied over an additive white gaussian noise ( awgn ) channel . it is demonstrated that the channel capacity of binary communication systems , for a given signal added noise , can be maximized by optimal designed receivers . this new form of sr is referred to as psr in a broad sense 本文研究并設(shè)計(jì)了含有雙穩(wěn)態(tài)隨機(jī)共振系統(tǒng)作為一個(gè)接收裝置的基帶數(shù)字通信系統(tǒng),在加性高斯白噪聲信道中,通過研究這個(gè)非線性接收器的性能,發(fā)現(xiàn)了數(shù)字信號(hào)傳輸中存在的參數(shù)調(diào)節(jié)隨機(jī)共振現(xiàn)象?信道容量隨著系統(tǒng)響應(yīng)速度的增加具有一個(gè)共振峰值,并對(duì)這種非線性現(xiàn)象發(fā)生的基本機(jī)理進(jìn)行了解釋。