...低信噪比；非相关与相关 [gap=807]tellite interference location；Time-delay of arrival（TDOA）；Fourth-order cumulant；Low signal-noise rate；Uncorrelated or correlated ..
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low signal to noise rate 低信噪比下
Signal sampling system of video communication over network usually has a low sampling rate suffering from the limited bandwidth, so aliasing noise is big problem.
受传输带宽限制，网络视频采集系统的采样率低，欠采样噪声严重。
Experiment results show that in low bit rate environment, the new image compression scheme performs better than JPEG in the aspects of perception and PSNR (Peak Signal Noise Ratio).
实验结果表明该算法在低码率下，相比jpeg，获得了在视觉效果和峰值信噪比方面更好的恢复图像质量。
On the design of classifier, by introducing support vector machine, Chinese tone recognition rate is improved under low signal noise rate conditions.
在分类器设计方面，通过引入支持矢量机，进一步提高低信噪比下的汉语声调识别率。
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