文件名称:jia-zao-fang-fa-
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其一噪声是否按指定的信噪比叠加，其二怎么样检验带噪信号中信噪比满足指定的信噪比。-First noise is superimposed specified signal-to-noise ratio, and the second is how to test signal with noise in the signal-to-noise ratio to meet the specified signal-to-noise ratio.
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jia zao fang fa .doc