上传文件至「Graduation Design Matlab」

2026-04-26 13:25:10 +08:00
parent e9e142203e
commit 7944dfaa4b
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+function [w_hybrid, F_RF] = algo_hybrid_dft(w_opt, A_dic, N_RF, a_target, R_in)
+% algo_hybrid_dft: 基于最大相关性(DFT)选择 + 数字基带 MVDR 的基线算法
+    
+    % 1. 找出与理想波束相关性最大的 N_RF 个原子
+    projection = A_dic' * w_opt;
+    [~, sort_idx] = sort(abs(projection), 'descend');
+    F_RF = A_dic(:, sort_idx(1:N_RF));
+    
+    % 2. 同样使用数字基带 MVDR 压制干扰
+    a_eff = F_RF' * a_target;
+    R_eff = F_RF' * R_in * F_RF;
+    F_BB_mvdr = (inv(R_eff) * a_eff) / (a_eff' * inv(R_eff) * a_eff);
+    
+    % 3. 合并
+    w_hybrid = F_RF * F_BB_mvdr;
+    w_hybrid = w_hybrid / norm(w_hybrid);
+end
+