通过改进积分器的结构，显著减小了开关电荷注入效应引起的调制器的谐波失真。
An improved structure of switched-capacitor integrator is used to reduce the harmonic distortion induced by charge-injection effect.
采样保持电路设计采用了电容下极板采样技术，不仅有效地避免了电荷注入效应引起的采样信号失真，而且消除了时钟馈通效应的不良影响。
The sample and hold circuit is employed by the bottom plate sampling technique, which could not only cancel the charge injection error but also eliminate the effect of clock feed-through.
通过模拟束流的传输过程，观察空间电荷效应对束流产生的影响，进一步对注入系统的元件参数进行适当的优化，从而对束流包络进行控制。
The infection of the space charge was observed by simulating the transmission of the beams, and the parameters of the system were optimized to control the envelope of the beam.
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