【摘要】：為了降低混沌調(diào)制中采樣通道的采樣速率,該文提出一種多通道混沌調(diào)制模擬-信息轉(zhuǎn)換結(jié)構(gòu)。該結(jié)構(gòu)通過采樣參數(shù)調(diào)制混沌系統(tǒng)的多個狀態(tài)輸出作為壓縮測量,可實現(xiàn)在總采樣速率不變的情況下降低每個采樣通道的采樣速率。與混沌調(diào)制相比,多通道混沌調(diào)制增加了低速采樣單元的個數(shù),但顯著提高了高稀疏度信號的重構(gòu)性能。基于混沌脈沖同步理論,該文給出了多通道混沌調(diào)制結(jié)構(gòu)的信號可重構(gòu)條件與被采樣狀態(tài)變量選擇方法。以Lorenz系統(tǒng)為例,仿真驗證了多通道混沌調(diào)制結(jié)構(gòu)的有效性。
[Abstract]:In order to reduce the sampling rate of sampling channels in chaotic modulation, a multi-channel chaotic modulation analog-information conversion structure is proposed in this paper. By modulating several state outputs of chaotic system with sampling parameters as compression measurements, the sampling rate of each sampling channel can be reduced without changing the total sampling rate. Compared with chaotic modulation, multi-channel chaotic modulation increases the number of low-speed sampling cells, but significantly improves the reconstruction performance of high sparse signal. Based on the theory of chaotic pulse synchronization, the condition of signal reconfiguration and the selection method of sampled state variables for multi-channel chaotic modulation structure are presented in this paper. Taking the Lorenz system as an example, the effectiveness of the multi-channel chaotic modulation structure is verified by simulation.
【作者單位】： 南京理工大學(xué)電子工程系;
【基金】：國家自然科學(xué)基金(60971090,61101193)資助課題
【分類號】：TN911.3

【參考文獻(xiàn)】

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