A quick and safe encryption arithmetic of symmetry is proposed, which has the same arithmetic in encryption and decryption without arithmetic logical operation.
给出了一种加密速度快，安全性高，加密算法和解密算法相同，且不需进行算术逻辑运算等特点的对称加密算法。
Based on symmetry structure test fixture, a De-embedding arithmetic has been educed, emulator has been done by MTLAB, and analyzed the result of emulator.
基于有源器件测量夹具结构对称的假设下，进行了去嵌入算法研究和实验研究，采用MTLAB对实测结果进行了计算，并对实验结果进行了分析。
We use period extension or symmetry extension in image processing. Our arithmetic has perfect properties that validated by numeric experiments in image compression.
图像的边界延拓我们采取周期延拓或对称延拓方式，图像压缩的数字实验验证了算法的优良性。
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