通信信號數(shù)字調(diào)制方式自動識別算法研究
Automatic Digital Modulation Recognition Algorithm of Communication Signals
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摘要: 自動調(diào)制識別是非協(xié)調(diào)通信系統(tǒng)接收機設(shè)計中的重要研究課題,該文針對工程中的應(yīng)用提出了一種調(diào)制識別算法。與已有的算法相比,該算法結(jié)構(gòu)簡單,計算量小,適合實時計算,而且在低信噪比環(huán)境下有較高的識別準確度;同時考慮了符號成形對參數(shù)提取的影響,更能滿足工程上的需要。
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關(guān)鍵詞:
- 符號成形; 瞬時參數(shù)提取; 調(diào)制方式識別
Abstract: Automatic modulation recognition is an important research area for the receiver design in the non-cooperative communication system. A digital modulation recognition algorithm is proposed in this paper for the engineering application. Contrast to other algorithm, this one is very simple to be calculated on-line and it also has a good recognition rate in the low SNR environment, furthermore the effect of symbol shape to the parameter extraction has been considered, which can satisfy the need of engineering. -
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