文中分析了傅立葉變換諧波分析法的缺點，提出一種離散微分跟蹤器算法的諧波檢測
方法。采用TMS320F28335浮點DSP處理器作為整個檢測系統的CPU，完成信號采集、數據處理和串行通信等。Matlab軟件進行模擬仿真的結果表明，離散微分跟蹤器算法對電網的隨機干擾信號具有良好的濾波效果，實現了高精度、高可靠性的諧波測量。
關鍵詞：離散微分跟蹤器；DSP；諧波檢測
Research on Discrete Differential-Tracker Arithmetic Harmonic Detection
Wang Xiaolei Wu Birui Wu Bingxin (Zhongyuan University of Technology，ZhengZhou，China 450007) Abstract: Analysing the defects of fourier transform harmonic analysis, this paper brings forward a method of discrete differential-tracker arithmetic harmonic detection. It adopts TMS320F28335 (DSP) as the whole detection system’s CPU, to realize Signal Acquisition, data processing and serial communication. Matlab Simulink results shows that discrete differential-tracker arithmetic has good filtering effects to the power grid random disturbance signal, it realizes the harmonic measure high precision, high reliability.
Key Words: Discrete differential-tracker; DSP; Harmonic detection