多频观测  Multi-frequency Observation

多频观测器  multiple frequency observer

非综观观测  non-synoptic observation; asynoptic observation

高频观测  high rate observation

观测频带  Observational frequency band

观测频率  Observational frequency; sampling frequency; observed frequency

观测频数  observed frequency

基本综观观测  principal synoptic observation

间综观观测  intermediate synoptic observation

检测观测器  fault detection observer

三频观测值  triple frequency observations

闪频观测器  strobe

闪频观测仪  stroboscope

视频观测  video observation

伪随机多频观测  pseudo-random multi-frequency; pseudorandom multi-frequency

有效观测频带  effective observation frequency band

预测观测器  Predictive observer

最低观测频率  lowest observed frequency

测频测周  frequency and period measuring method; frequency and periodical signal measuring