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complicated noise
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  复杂噪声
    Based on the complicated noise characteristics in digital holographic storage system(DHSS), some methods of channel code in digital communication are introduced.
    针对数字体全息存储系统(DHSS)中复杂噪声的特点,从数字通信中信道编码的观点出发,讨论了采用数字信号处理方法来抑制DHSS中噪声干扰的技术。
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  complicated noise
In many video clips, there were also non-acting visitors browsing in that area, resulting in more complicated noise patterns.
      


Based on the complicated noise characteristics in digital holographic storage system(DHSS), some methods of channel code in digital communication are introduced. In order to improve effect of traditional modulation code, a new modulation-array (MA) code and a novel soft-decision method corresponding to MA code are proposed for data processing in DHSS. Also developed based on the MA code is a new iterative decoding algorithm, which integrates principles of modulation code detection, soft-decision, array...

Based on the complicated noise characteristics in digital holographic storage system(DHSS), some methods of channel code in digital communication are introduced. In order to improve effect of traditional modulation code, a new modulation-array (MA) code and a novel soft-decision method corresponding to MA code are proposed for data processing in DHSS. Also developed based on the MA code is a new iterative decoding algorithm, which integrates principles of modulation code detection, soft-decision, array code error-correction and Turbo code decoding. The experimental results show that this MA code can be employed in the system and can reduce effectively the influence of noise.

针对数字体全息存储系统(DHSS)中复杂噪声的特点,从数字通信中信道编码的观点出发,讨论了采用数字信号处理方法来抑制DHSS中噪声干扰的技术。为了克服传统调制码的弊端,提出了一种适用于DHSS新的调制码:调制-阵列码的编译码方法及其相应的软判决度量方法。实验结果表明,这些方法对降低误码率发挥了作用,特别是集等重码、纠错码和迭代译码等优点于一身的调制-阵列码的应用,可将误码率降低一二个数量级,并成功地实现了多媒体视频流的存储和回放。

 
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