variable-phase signal

The disturbance variable, the delayed time"", the feedback weight factor "k" and the time of adding delayed control signal are some key parameters for good chaotic control in the method.

在该方法中，微扰控制变量、延迟时间τ、反馈权重因子k、加入延迟反馈控制信号的时间的选取，是把冗余度机器人的混沌运动转变成规则的周期运动的关键因素。

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At the same time, it avoids the chattering phenomenon caused by discontinuity in the variable structure control and fulfills the control mission of spacecraft attitude tracking time-varying signal with good robustness.

实现了航天器姿态跟踪时变参数的控制，并具有较强的鲁棒性。

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Finally, for complex variable background noise, the adaptive threshold is proposed to improve the constant threshold test method of hypothesis testing to detect the RF signal in low SNR.

最后针对复杂时变背景噪声，提出采用自适应门限以改进恒定门限检验的假设检验方法，在低信噪比下对射频信号进行检测。

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Digital Variable Frequency Signal Source for Chemical Fibres Spining Controlled by 8098 Monochip Microcomputer

基于8098单片机控制的全数字化纤纺丝变频源

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Filter is one of representative digital signal processing system which could be divided into time invariant system and time variable system.

滤波器是一个典型的数字信号处理系统，同样可分为时变滤波器和时不变滤波器。

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