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您的检索式：作者名="Sang Enfang"
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| 1 | The study of underwater acoustic communication technology based-on the acoustic vector sensor显示文摘在水下声学(UWA ) 通讯基于一个声学的向量传感器被学习。联合加权的健全压力并且速度处理的方法在高速度的 UWA 通讯系统与协调解调和适应均等算法相结合使解调并且译码的阶段调整被使用。而健全紧张能被使用而不是压力频率在频率调整 UWA 通讯系统译码。理论分析,模拟计算和湖试用的结果证明了在阶段调整或在频率调整 UWA 通讯系统,处理获得能显然被增加,以便 BER (小点错误率)能有效地被减少,遥感勘测距离能被使用声学的向量传感器扩大。 | QIAO Gang SANG Enfang | 2007 | Chinese Journal of Acoustics2007，26，3： | 1 |
| 2 | 2005,Acoustics and Electronics Engineering显示文摘 | Bian Hongyu Cao Mingming Sang Enfang | 2005 | 2(78): 42452005，2，78： | 1 |
| 3 | Speech compression scheme based on wavelet transform and vector quantization显示文摘A coding method of speech compression, which is based on Wavlet Transform and Vector Quantization (VQ), is developed and studied. The Wavlet Thansform or Wavlet Packet Thansform is used to process the speech signal, then VQ is used to compress the coefficients of Wavlet Thansform, and the entropy coding is used to decrease the bit rate. The experimental results show that the speech signal, sampled by 8 kHz sampling rate and 8 bit quatisation,i.e., 64 kbit/s bit rate, can be compressed to 6 - 8 kbit/s, and still have high speech quality,and the low-delay, only 8 ms. | LI Shuhong SANG Enfang(Dept. of Underwater, Acoustic, Harbin Engineering University Harbin 150001) | 1999 | Chinese Journal of Acoustics1999，18，4： | 0 |
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