Active noise control (ANC) is a new high technology integrated with acoustic, adaptive control and digital signal process and it has become the research focus center of noise control.

主动噪声控制是集声学、自适应控制及数字信号处理等技术为一体的高新技术，已成为国内外噪声控制界的研究热点。

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A collimation system for commander panoramic sight based on based on high performance digital signal processor and active disturbance rejection control (ADRC) technique is put forward.

提出一种基于高性能数字信号处理器结合自抗扰控制技术的车长周视镜稳定瞄准系统。

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Besides, it can be used both to measure the small signal S-parameters of active networks and the S-parameters of passive networks with high accuracy.

此法也可用于猜测一切有源网络的小信号s参数和一切无源网络的S参数。

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