一種基于FFT的聯(lián)合幀同步和頻偏估計(jì)算法
Combined Algorithm Based on FFT for Frame Synchronization and Frequency Offset Estimation
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摘要: 該文提出了一種基于FFT的聯(lián)合幀同步和頻偏估計(jì)算法，可有效地消除頻偏對(duì)幀同步性能的影響，頻偏估計(jì)范圍可達(dá)－Rs/2~Rs/2。計(jì)算機(jī)仿真表明，當(dāng)存在頻偏時(shí)，該算法的幀同步性能優(yōu)于目前已知算法的性能。
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關(guān)鍵詞:
- 幀同步;頻偏估計(jì);FFT;獨(dú)特碼
Abstract: This paper presents a new combined algorithm based on FFT for frame synchronization and frequency offset estimation. The algorithm can achieve frame synchronization effectively in the presence of a frequency offset and the frequency offset estimation range is －Rs/2~Rs/2. Simulation results indicate that the proposed algorithm can outperform existing methods when a frequency offset exists. -
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