比幅测频
measuring frequency by amplitute comparison
残压测频
remain_voltage measuring frequency
测频测周
frequency and period measuring method
frequency and periodical signal measuring
测频电桥
frequency measuring bridge
测频方法
method of calibrating frequency
测频精度
precision of frequency measurement
frequency measurement accuracy
测频扩展法
frequency range expanding method
测频算法
algorithm for frequency measurement
measuring frequency algorithm
测频误差
error of frequency measurement
frequency measurement error
测频系统
frequency measurement system
测频与测向级联估计
cascade estimation of frequency measurement and direction finding
测频站
FMS Frequency Measuring Station
测频装置
FME Frequency – Measuring Equipment
垂测频高图
vertical sounding ionogram
等精度测频
equal precision frequency measurement
equal precision method of frequent measuring
uniform precision frequency measurement
equal-precision frequency measurement