The noise parameters are closely related to the barrier zone and mainly reflected in the noiseamplitude.
噪声参数与势垒区的复合效应密切相关，主要表现为频率指数基本不变，噪声幅值呈增大趋势。
2
There exists on optimal value of magnetic focusing field and beam voltage, which can minimize the ion noiseamplitude.
束电流与束电压确定，存在最佳的磁场使离子噪声幅度最小。
3
The method can realize time variant merging automatically, result in simultaneous corrections both for phase and amplitude and avoid the influence of noise.