dsp数字移频反馈控制器，由dsp数字移频-dsp自动数字滤波器组成，根据现场环境dsp软件自动寻找啸叫点并锁定，无需人工调节。
Dsm dsp frequency feedback controller is made of dsp shift frequency and dsp automatism digital filter. dsp software searches howl point and lock it by locale condition with no adjusting.
本文简要介绍了数字滤波的几种方法，非线性补偿及误差修正的几种方法以及零点漂移问题的自动跟踪处理方法。
Introduce several methods of digital percolate ave, nonlinear compensate and error correction, as well as zero error and automatic trace processing method in this article.
变步长自适应数字滤波器的权值随信号和噪声的变化自动调整时可能出现不稳定。
Adaptive digital filters with variable step-size may become unstable when their weights are automatically adjusted with input signal and noise.
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