以下为句子列表：
英文: A new wavelet-bispectrum united detection algorithm is proposed to face with problems such as the complex structure and low signal to noise ratio of radar echo, when there exist difficulties in detecting impulses in through-wall radar systems.
中文: 摘要针对冲击体制穿墙雷达系统中回波信号结构复杂、信噪比低、信号检测困难等问题，提出一种小波－双谱联合检测新算法。
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英文: Numerical results show that for the data with either high or low signal to noise ratio (SNR), inversion solution depends weakly on regularization operators, while strongly upon regularization parameter.
中文: 模拟表明，无论是高信噪比数据，还是低信噪比数据，反演的含水量在小正则化参数时，对模型约束的依赖性不大，主要受正则化参数影响。
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英文: Signal to Noise Ratio (SNR): The ratio of the signal to the random noise in a set of data.
中文: 信噪比：平均到一个数据单元的信号与随机噪声的比值。
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英文: State of the art fiber optic components deliver high signal to noise ratio and long-term stability.
中文: 光缆联接的光路保证了系统的柔和性以及高信噪比和长时间工作稳定性。
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英文: The requirements for external vibration is put forward by means of signal to noise ratio of dynamic balance measuring system.
中文: 根据动平衡测试系统信噪比对外界振动提出了要求。
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