As expected, the program has received a SIGILL (signal number 4) with an si code of 5, which is set when a privileged opcode is executed by a user-space program.
正如我们期望的一样，这个程序会接收到一个SIGILL(信号编号为4)信号，其si代码为5，这是在用户空间的程序执行特权操作时产生的。
The traditional differential space-time block code (DSTBC) suffers from the signal constellation expansion for QPSK modulation.
传统的差分空时分组编码(DSTBC)在QPSK调制时存在着信号星座扩展。
In communication of deep space, the receiving of low signal-to-noise and multi-address communication can be realized with pseudo-random code signal.
深空通信中，利用伪随机编码信号可实现低信噪比接收和多址通信。
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