half frequency造句

• Half frequency precession
  半频进动
• Simulation experiments show that the pitch extracting results of the algorithm are superior to that of the conventional algorithms , overcoming the random errors and multiple or half frequency errors , especially robust at low snr
  仿真实验表明，该算法与传统方法相比其基音检测结果有明显的改善，克服了随机错误及倍频、半频错误，并且在低信噪比下鲁棒性较好。