2) Frequency conversion and extenstion
频率变换与扩展
3) converter / spread-spectrum technique
变换器/扩频技术
4) extend transform
扩展变换
5) companding transform
压扩变换
1.
From the point of view of a whole OFDM system, the practicability of companding transform for reduction in peak-to-average power ratio of OFDM signals is analysized.
从OFDM系统的整体考虑出发,分析了基于压扩变换降低OFDM峰均功率比方法的实用性。
2.
Firstly, this thesis derives a novel companding transform based onβ-distribution toreduce the PAPR of OFDM signals.
论文首先提出了一种新的基于β分布的压扩变换技术来降低OFDM信号的PAPR。
3.
And the partial compression can maintain the distribution characteristic of signal amplitude better than companding transform.
其中幅度预矫正具有算法简单、灵活的特点,而部分压缩能比压扩变换更好地保持信号幅度的分布特性。
6) expandable and contractable transformation
扩缩变换
补充资料：变换器式频率表(见交换器式电表)
变换器式频率表(见交换器式电表)
transducer type frequency meter
曰‘口，”IuullqISn}P旧iUbloo变换器式颇率表meter)(transdueer tyPe见变换器式电表。frequeney
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条