摘要
A time domain channel estimation method in MIMO-OFDM systems by tracking the delay-subspace is proposed. The time impulse response is estimated by transmitting known pilot symbols, and the estimation performance is improved by the Givens rotation based delay-subspace tracking and amplitudes tracking based on the LMS filtering. Simulations proved that the time domain channel estimation by tracking the delay-subspace can track faster fading channels, and is more accurate and yet of low complexity.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 636-640 |
| 页数 | 5 |
| 期刊 | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| 卷 | 27 |
| 期 | 7 |
| 出版状态 | 已出版 - 7月 2007 |