您要查找的是不是：
- 导频子载波pilot sub-carrier
- 子midnight
- 子帧subframe
- 时频子空间拟合波达方向估计Estimating Direction-of-Arrival Via Time-Frequency Signal Subspace Fitting
- 数据子帧data burst
- OFDM系统中基于导频的时变信道估计Time-Varying Channel Estimation Based on Pilot Tones in OFDM Systems
- 下行be issued to lower levels
- 子帧同步burst synchronization
- 基于导频检测技术的射频前馈功放研究Investigation and Simulation of Feedforward Power Amplifier Based on Pilot Signal
- 帧picture
- 帖子post
- 导通breakover
- 电导率electrical conductivity
- 频数frequence
- 重叠子帧overlap sub-frame
- 导流stream guidance
- 主频dominant frequency
- 导盲犬seeing eye dog
- 倍频frequency doubling
- 亲子parent-offspring
