●●●●● ●●●● ●●0 ●●● ●●●● m(t)=h(t)m(t-T) cos(@t-O, r)dr cost h(t)m(t-rcosotdt SIn@ h(r)m(t-tsino tdt Sn(o)=0.5[M(-02)+M(0c)H(o) 2021/2/24 通信原理——周扬2021/2/24 通信原理——周扬 ( ) ( ) ( )cos( ) cos ( ) ( )cos sin ( ) ( )sin m c c c c c c s t h m t t d t h m t d t h m t d                    −  −  − = − − = − −    ( ) 0.5[ ( ) ( )] ( ) m c c S M M H       = − + +