In the paper, it has discussed the action of a phase on necessary and sufficient Condition of coherent state to remain its state on the time evolution.
本文讨论了相位因子对相干态在时间演化中保持不变的充要条件所造成的影响。
Time domain synchronous averaging can reduce the signal not coherent to rotation frequency effectively, and extract the repetitive signals directly related to machine operation condition.
而时域同步平均可以有效衰减与回转频率无关的干扰，提取与工作状态直接相关的周期信号。
How to detect moving target in low SNR condition for moving-baselines time difference measuring system is studied, using multi-pulses coherent integration algorithm.
主要研究了动基线时差测量系统采用多脉冲相参积累算法对低信噪比条件下运动目标的有效检测问题。
Theoretical analysis and the results of simulation show that coherent accumulation can improve UWB radar target recognition probability in the condition of low signal noise ratio.
理论分析和计算机仿真结果均表明，在低信噪比的情况下，相参积累方法可以提高UWB雷达的目标识别概率。
By analyzing, the stress of teeth-root is higher, it is coherent with the actual crack condition.
通过分析发现，齿根处和轴肩过渡处应力值很高，这与实际应用过程中经常发生断裂的情况是一致的。
By analyzing, the stress of teeth-root is higher, it is coherent with the actual crack condition.
通过分析发现，齿根处和轴肩过渡处应力值很高，这与实际应用过程中经常发生断裂的情况是一致的。
应用推荐