这次测试是在一个Windows XP双核笔记本计算机上执行的，使用DB 2 V 9.1代码库，模拟几个只由connect语句组成的DB 2命令行处理程序作业流。

This test was performed on a Windows XP dual-core laptop, using DB2 V9.1 code base, simulating several DB2 command line processor job streams that consisted exclusively of connect statements.

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理论分析和计算机模拟结果表明：运用码变换的方法来产生回波抵消信号是可行的，这将有利于用数字方法来实现。

The theoretical analysis and the results of computer simulation showed that it is possible to build a cancelling signal by means of code transformation.

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最后，在空时区块码不同的正交矩阵之下，展现出我们的模拟结果。

Finally, we present our simulation results under different encoding scheme of the space time block code.

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