From 3743aa0a986309d01fb3902d56dd5cd0c5e1d196 Mon Sep 17 00:00:00 2001
From: Josh Gao <josh_gao@foxmail.com>
Date: Sun, 14 Jun 2026 22:37:09 +0800
Subject: [PATCH] =?UTF-8?q?fix(preamble):=20=E8=A1=A5=E9=BD=90=20EFIM=20?=
 =?UTF-8?q?=E8=AF=8D=E6=9D=A1?=
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sec4/sec5 与附录 E.2/F 大量使用 \gls{efim}，原 preamble 缺少
对应 \newacronym 定义会导致编译失败。
---
 doa_doppler_est.tex | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doa_doppler_est.tex b/doa_doppler_est.tex
index 4da3552..9352502 100644
--- a/doa_doppler_est.tex
+++ b/doa_doppler_est.tex
@@ -99,6 +99,7 @@
 \newacronym{doa}{DoA}{Direction-of-Arrival，波达方向}
 \newacronym{ecef}{ECEF}{Earth-centered, Earth-fixed，地心地固}
 \newacronym{eci}{ECI}{Earth-centered Inertial，地心惯性}
+\newacronym{efim}{EFIM}{equivalent Fisher information matrix，有效费舍尔信息矩阵}
 \newacronym{esprit}{ESPRIT}{Estimation of Signal Parameters via Rotational Invariant Techniques，旋转不变信号参数估计法}
 \newacronym{fdoa}{FDOA}{Frequency Difference of Arrival，到达频率差}
 \newacronym{fim}{FIM}{Fisher Information Matrix，费舍尔信息矩阵}