This paper summaries and analyses current various OTDR monitoring technologies used in optical access network and its development trend. A tunable wavelength of OTDR based on biorthogonal codes is proposed, which is studied theoretically and experimentally.
本文总结和分析了当前光接入网中应用的各种OTDR监测技术及其发展趋势,并提出了一种基于双正交编码的波长可调OTDR,进行了理论和实验上的研究。
参考来源 - 光接入网中光时域反射计的研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
介绍基于双正交整数叠式变换（LBT） 的图像压缩及编码方法的原理，以及该系统的硬件设计。
The paper introduced the method to realize the image compression based on Integer Lapped Biorthogonal Transform(LBT) and the theory of coding as well as its hardware design.
针对遥感图像的数据特点，提出了结合双正交变换和SPIHT算法的遥感图像小波零树编码方案。
A new remote sensing image coding scheme based on the biorthogonal wavelet transform and SPIHT algorithm is proposed according to the statistical characteristic of remote sensing image data.
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