基于MCTF的时域可分级视频编码技术 - docin.com豆丁网 算法 图 2 是 Foreman 序列在码率 50kbps 从 97th 到 104th 帧的信号-噪音功率比(Power Signal-to- Noise Ratio，PSNR) 与 GOP 尺寸关系，虽然 Foreman 序列图像特征时域变化较慢，但实验结 果表明当GOP 为
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power signal-to-noise ratio 功率信噪比
PSNR Power Signal-to-Noise Ratio 信 ; 信号
signal-to-noise power ratio [通信] 信号与噪声功率比 ; 信噪比
The benefits of large effective area fibers are higher power handling capability for improved system signal to noise ratio (SNR), and longer amplifier spacing.
由于大有效面积非零色散位移光纤具有较高的额定最大功率，其直接效益之一就是可改善系统信噪比和加大放大器间隔。
This method is compared with classical noise jamming technique by means of SJR (Signal to jamming Ratio) gain and jamming power gain of SAR system.
讨论了这种干扰方法对合成孔径雷达图像的干扰效果。
Based on the analysis of noise characteristics of the power signals, an approach to modeling the signal-to-noise ratio (SNR) is proposed and corresponding theory is demonstrated.
在分析功耗信号的噪声特点以后，提出了一个信噪比(SNR)的建模方法和相应理论的证明。
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