diff --git a/Simulator/src/config/config.yaml b/Simulator/src/config/config.yaml
index 113297e..cfacd8f 100644
--- a/Simulator/src/config/config.yaml
+++ b/Simulator/src/config/config.yaml
@@ -20,7 +20,7 @@ expand_y_times: 0      # y方向复制次数（cuda版不使用）
 occupy_threshold: 0    # 大于多少个点才认为占据（cpu版不使用）
 
 # 2.2 随机地图
-seed: 2
+seed: 3
 x_length: 60           # 真正随机范围(XY更大范围处为其镜像)
 y_length: 60
 z_length: 15
diff --git a/YOPO/config/traj_opt.yaml b/YOPO/config/traj_opt.yaml
index 4728396..bec4cf8 100644
--- a/YOPO/config/traj_opt.yaml
+++ b/YOPO/config/traj_opt.yaml
@@ -1,6 +1,7 @@
-# IMPORTANT PARAM: actual velocity in training / test
+# IMPORTANT PARAM: actual velocity in training / testing
 velocity: 6.0
-# used to align the vel/acc, if vel*n then acc*n*n
+# used to align the vel/acc, ensure consistency between testing and training.
+# during testing, if vel*n then acc*n*n, please refer to ../policy/primitive.py
 vel_align: 6.0
 acc_align: 6.0
 
diff --git a/YOPO/loss/guidance_loss.py b/YOPO/loss/guidance_loss.py
index 3c9e3c8..5b8ab04 100644
--- a/YOPO/loss/guidance_loss.py
+++ b/YOPO/loss/guidance_loss.py
@@ -19,9 +19,9 @@ class GuidanceLoss(nn.Module):
             Df: fixed parameters: (batch_size, 3, 3) → [px, vx, ax; py, vy, ay; pz, vz, az]
             goal: (batch_size, 3)
         Returns:
-            similarity: (batch_size) → guidance loss
+            guidance_loss: (batch_size) → guidance loss
 
-        GuidanceLoss: Projection length of the trajectory onto the goal direction: higher cosine similarity and longer trajectory are preferred
+        GuidanceLoss: distance_loss (better near the goal) or similarity_loss (better during flight) or terminal_aware_similarity_loss (balanced)
         """
         cur_pos = Df[:, :, 0]
         end_pos = Dp[:, :, 0]
@@ -79,7 +79,7 @@ class GuidanceLoss(nn.Module):
         traj_dir_proj = similarity.unsqueeze(1) * goal_dir_norm  # [B, 3]
         perp_component = (traj_dir - traj_dir_proj).norm(dim=1)  # [B]
 
-        perp_weight = 2 * (self.goal_length - goal_length) / self.goal_length   # [B]
-        perp_weight[perp_weight.abs() < 1e-4] = 0.0  # eliminate tiny numerical errors for stability
-        similarity_loss = th.abs(goal_length - similarity) + perp_weight * perp_component
+        perp_weight = ((self.goal_length - goal_length) / self.goal_length).clamp(min=0.0, max=0.6)   # [B]
+        perp_weight[perp_weight < 1e-4] = 0.0  # eliminate tiny numerical errors for stability
+        similarity_loss = (1 - perp_weight) * th.abs(goal_length - similarity) + perp_weight * perp_component
         return similarity_loss
\ No newline at end of file
diff --git a/YOPO/saved/YOPO_1/epoch50.pth b/YOPO/saved/YOPO_1/epoch50.pth
old mode 100644
new mode 100755
index aaca561..54e988c
Binary files a/YOPO/saved/YOPO_1/epoch50.pth and b/YOPO/saved/YOPO_1/epoch50.pth differ