refactor: 精简检测算法，对齐 M1H/TLD-110 参考实现

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- 删除二阶差分滤波（计算但从未参与判决）
- 删除 FltHistoryManager 死代码（20+ 未用字段）
- 删除 StageRangeConfig（区间约束计算后未引用）
- 删除动态窗口切换，改为 M1H 固定 100 窗口基线
- 修复 LPCNT 计算溢出 (32768/Xn<<6 改为乘除顺序)
- 进入/离开判决对齐 M1H：单次检测 + TMR15 时序防抖
- 时序状态机简化：去掉 PLUSE_IN_F/PLUSE_IN 中间层
- 拨码去抖次数对齐 M1H: 10→5
- 代码量: 1177→706 行 (-40%)

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wangfq

2026-06-23 08:39:48 +08:00

parent 1d1e7fbc19

commit 95bf13a5ef

2 changed files with 672 additions and 1177 deletions

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utilities/at32f421_freertos_demo/src/TaskLoop.c

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