{
  "skill_name": "fft-analyse",
  "evals": [
    {
      "id": 1,
      "prompt": "帮我分析这个仿真输出文件的IQ频谱：e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/sim-dbg/output_iq.txt。采样率是245.76MHz，数据是24位有符号整数，I列是m_i_dec，Q列是m_q_dec。跳过前50个样本（FIR启动）。频率显示范围 -70到70MHz。输出到 e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/sim-dbg/eval_out/",
      "expected_output": "Runs fft_analyse.py with correct arguments, produces analysis PNG and summary TXT, reports 99% OBW around 8 MHz",
      "files": ["e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/sim-dbg/output_iq.txt"]
    },
    {
      "id": 2,
      "prompt": "请对这个ILA捕获文件做FFT频谱分析：e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/ila_dbg/iladata-120m.csv。采样率120MHz，16位数据。",
      "expected_output": "Auto-detects I/Q columns from the file, runs FFT, produces spectrum plot, reports OBW",
      "files": ["e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/ila_dbg/iladata-120m.csv"]
    },
    {
      "id": 3,
      "prompt": "我有一个CSV文件 e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/sim-dbg/output_iq.txt，帮我画个频谱图，采样率 245.76e6，24位",
      "expected_output": "Handles slightly vague request, infers correct arguments, produces spectrum plot",
      "files": ["e:/Xilinx_Design/smod/SMOD_DTMB_CG/my_exciter/sim-dbg/output_iq.txt"]
    }
  ]
}