{
  "kind": "合成对照输入与本地模型/解析结果，非设备实测",
  "article": "https://qifudev.com/article/ema-variable-dt-coefficient/",
  "tool": "https://qifudev.com/tools/exponential-filter/",
  "model": "α=1−exp(−Δt/τ)；y[n]=(1−α)y[n−1]+αx[n]",
  "inputs": {
    "intervalMs": "20",
    "tauMs": "100"
  },
  "outputs": {
    "alpha": 0.18126924692201815,
    "settling95Ms": 299.57322735539907,
    "steps95": 15
  },
  "extra_checks": [],
  "warnings": [],
  "limitation": "假设固定间隔和阶跃输入，不包含量化、溢出与非均匀调度；时间变化时应重新计算系数。",
  "source": {
    "label": "Analog Devices DSP教材：滑动平均",
    "url": "https://www.analog.com/media/en/technical-documentation/dsp-book/dsp_book_Ch15.pdf"
  },
  "measured": {
    "device": null,
    "firmware": null,
    "instrument": null,
    "conditions": null,
    "raw_result": null,
    "verdict": null
  }
}