研究结果，也即两层传输时的专用导频图案，也可以作为更高阶传输时专用导频设计的基础。

The research method can be extended to higher rank transmission, and the research result can also be regarded as the basis for higher rank design.

youdao

本论文对MIMO - OFDM系统物理层的若干关键理论和技术进行了深入研究，包括：信道估计、专用导频设计等问题。

This dissertation focused on MIMO-OFDM system and made a thorough research on the key theories and technologies including channel estimation and dedicated reference signal design.

youdao

针对采用专用控制信道的DS - CD MA系统的上行链路，本文直接利用控制信道的导频符号进行SIR测量的闭环功率控制，并通过计算机仿真对链路的性能进行分析。

An SIR-based close loop power control algorithm is presented. The pilot symbols of control channel in DS-CDMA up-link system are used to measure the received SIR.

youdao