基于折疊相位的猝發(fā)信號載波相差盲估計

邱釗洋; 黃焱; 歐陽喜

doi:10.11999/JEIT160993

基于折疊相位的猝發(fā)信號載波相差盲估計

doi: 10.11999/JEIT160993 cstr: 32379.14.JEIT160993

基金項目:

國家自然科學基金(61072046)

計量
- 文章訪問數(shù): 1294
- HTML全文瀏覽量: 111
- PDF下載量: 321
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2016-09-29
- 修回日期: 2017-02-22
- 刊出日期: 2017-07-19

Blind Carrier Phase Estimation Method for Burst SignalsBased on Wrapped Phase

Funds:

The National Natural Science Foundation of China (61072046)

摘要

摘要: 針對大量出現(xiàn)的未知猝發(fā)類幅相調(diào)制信號，包括PSK, APSK, QAM等，該文提出一種通用的前向載波相位恢復方法。該方法基于星座對稱性，從星座點的相位信息出發(fā)，構造折疊相位(WP)統(tǒng)計量，實現(xiàn)了此類信號無區(qū)分調(diào)制類型，無需訓練序列的載波相位盲估計。仿真表明，此方法相比現(xiàn)有算法，相同數(shù)據(jù)量，相同信噪比下優(yōu)勢明顯，靈活性，魯棒性均優(yōu)于現(xiàn)有算法，適合非合作接收條件下猝發(fā)信號處理工程實踐。
- 載波相位恢復 /
- 折疊相位 /
- 猝發(fā)信號
Abstract: For the emergence of massive burst amplitude and phase-modulated signals with uncertain modulation type including PSK, APSK, QAM and so on, a universal algorithm is proposed to accomplish the forward carrier phase recovery. Based on the symmetry of constellation, a statistic of wrapped phase is established from the phase information of the constellation points. As a result, the carrier phase blind estimation for unknown burst signals is accomplished regardless of the modulation type and training sequence. Simulations indicate that compared with the current algorithms, the proposed method has better anti-noise ability, flexibility, robustness, making it a good choice for engineering practice of burst signals under non-cooperative condition.
- Carrier phase recovery /
- Wrapped phase /
- Burst signal

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參考文獻(25)

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