From 6e54313a7527449407900a078757e2209b3ad9b0 Mon Sep 17 00:00:00 2001
From: Josh Gao <josh_gao@foxmail.com>
Date: Tue, 16 Jun 2026 19:11:43 +0800
Subject: [PATCH] =?UTF-8?q?fix(preamble):=20=E9=99=84=E5=BD=95=20PDF=20?=
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\thesection 用 \texorpdfstring 分流：正常排版（\ref、标题编号）取
\Alph → "A"，PDF 书签取"附录 \Alph" → "附录 A"。正文引用仍"附录 E"、
标题仍"附录 E"，仅恢复书签栏的"附录"前缀。等式号与子节号用
\Alph{section} 直接展开、不经 \thesection，故不受影响。
---
 doa_doppler_est.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doa_doppler_est.tex b/doa_doppler_est.tex
index cff28d3..69ca563 100644
--- a/doa_doppler_est.tex
+++ b/doa_doppler_est.tex
@@ -148,7 +148,7 @@
 % \input{parts/sec8_beamforming.tex}        % 预留，本次不展开
 
 \appendix
-\renewcommand{\thesection}{\Alph{section}}
+\renewcommand{\thesection}{\texorpdfstring{\Alph{section}}{附录 \Alph{section}}}
 \titleformat{\section}{\normalfont\Large\bfseries}{附录~\thesection}{1em}{}
 \titlespacing*{\section}{0pt}{*0}{*0}
 \renewcommand{\thesubsection}{\Alph{section}.\arabic{subsection}}