Orthogonal frequency division multiplex(OFDM) is an effective method to realize high data rate transmission.

正交频分复用（OFDM）是实现高速数据传输的一种有效方法。

A pilot aiming at mitigating the inter-cell interference of channel estimation in multi-input multi-output(MIMO) orthogonal frequency division multiplex(OFDM) systems is designed.

为了抑制多入多出正交频分复用（MIMO OFDM）系统小区间信道估计的多址干扰，提出了一种导频设计方案。

A new evaluation approach for the in-band nonlinear distortion, which is formed by the orthogonal frequency division multiplex (OFDM) signal passing through the high power amplifier, is presented.

提出了研究正交频分复用（OFDM）信号通过高功率放大器产生的带内非线性畸变的一种新方法。

A measurement system of vibration acceleration using fiber Bragg grating is presented. The sub-carrier frequency modulation and wavelength division multiplex technology are used in this system.

采用副载波调频、波分复用技术提出了一种分布式光纤布喇格光栅加速度测量系统，并进行了基于双光纤布喇格光栅的加速度传感探头结构的设计。

According to the theory of orthogonal multiplex, frequency division multiplex (FDM) and time division multiplex (TDM) belong to orthogonal multiplex.

根据正交分割理论，现在流行的频率分割制（FDM）和时间分割制（TDM）都属于正交分割的范畴。

The research also offers good academic and practical reference to the design of filter circuit parameters in two path frequency division multiplex circuit.

该项研究为两路频分复用电路的滤波电路参数设计提供了理论与实验的依据。

According to the theory of orthogonal multiplex, frequency division multiplex (FDM) and time division nultiplex (TDM) are called orthogonal multiplex.

根据正交分割理论，现在流行的频率分割制（FDM）和时间分割制（TDM）都属于正交分割的范畴。

Orthogonal frequency division multiplex(OFDM) is suitable for Broadband-satellite mobile communication system with the advantage of robustness to muti-path and high bandwidth efficiency.

正交频分复用（OFDM）技术具有抗多径衰落，频谱利用率高等优点，适合于在宽带卫星通信这种无线环境下进行高速传输。

A novel channel estimation and pilot structure are proposed for multi-input multi-output orthogonal frequency division multiplex(MIMO-OFDM) structure.

提出了一种全新的多入多出正交频分复用（MIMO-OFDM）信道估计和导频设计方案。

Orthogonal frequency division multiplex (OFDM) is currently one of the most popular techniques for future broadband wireless communications.

正交频分复用（OFDM）技术是未来宽带无线通信中最流行的技术之一。

Orthogonal Frequency Division Multiplex Access(OFDMA) is widely used for its characteristics of high data transmission rate and the flexibility of bandwidth allocation.

正交频分复用接入（OFDMA）具有传输速率高，带宽分配灵活等特点。