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实验一

于 2020-05-21 发布
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说明:  一般信道容量迭代算法 (1)初始化信源分布:P^((0))=(p_(1 ),p_(2 ),…,p_(i ),…,p_r),置迭代计数器k=0,设信道容量相对误差门限为δ,δ>0,可设C(0)=-∞; (2)φ_ji^((k))=(p_ij p_i^((k)))/(∑p_ij p_i^((k)) ) i=1,…,r;j=1,…,s; (3)p_i^((k+1) )=exp?[∑_j?〖p_ij lnφ_ji^((k)) 〗]/(∑_i?〖{exp?[∑_j?〖p_ij lnφ_ji^((k)) 〗]}〗) i=1,…,r; (4)C^((k+1))=ln∑_i?〖{exp?[∑_j?〖p_ij lnφ_ji^((k)) 〗]}〗; (5)如果, (|C^((k+1) )-C^((k)) |)/C^((k+1)) ≤δ, 转向(7); (6)否则,置迭代符合 k+1→k,转向(2); (7)输出p_i^((k+1) )和C^((k+1)); (8)停止。(General channel capacity iterative algorithm)

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