When they did become commercially available they were large and expensive, and they were used to simulate the performance of analog signal processing to judge its effectiveness.
当它们确实在商业中使用时， 它们又笨重又昂贵，它们被用于模拟信号处理的演示仿真，以判断信号的有效性。
The error-rate performance of the high-speed QPSK digital satellite communication system with cochannel large capacity FDM-PM signal interference is studied by means of computer simulation.
本文用计算机模拟的方法研究高速QPSK数字卫星系统受大容量FDM-FM信号同波道干扰时的系统误码特性。
The error-rate performance of the high-speed QPSK digital satellite communication system with cochannel large capacity FDM-PM signal interference is studied by means of computer simulation.
本文用计算机模拟的方法研究高速QPSK数字卫星系统受大容量FDM-FM信号同波道干扰时的系统误码特性。
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