当脉冲干扰占空比较小时，干扰能量集中，导致直接序列扩频（DSSS）系统的误码性能较差。
The performance of Direct Sequence Spread Spectrum(DSSS) in severe pulsed noise interference will be badly degraded when the duty factor is small.
借助于向量李雅谱诺夫函数，通过建立一个新的比较结果，研究了具有固定时刻脉冲的控制系统的实际稳定性。
Utilizing piecewise continuous vector Lyapunov function, the practical stabilization of control systems with fixed moments of impulse effects by establishing a new comparison result is considered.
运用比较原理和导数不连续的李雅普诺夫函数，结合分解集结等方法，研究具有滞后的测度型线性时变脉冲扰动大系统的全局指数稳定性。
The stability of time-delay and time-varying large scale systems with impulsive effect is investigated by means of the comparison principle and vector Lyapunov function with discontinuous derivative.
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