信号量化噪声比 SQNR
It is able to modify the quantization step and the embedding strength of watermarking adaptively according to the quantified signal to noise ratio, so the binary watermark image could be embedded in the original audio signal wavelet domain.
利用量化信噪比自适应地确定量化步长和水印的嵌入强度，将二值图像嵌入到音频信号的离散小波域中。
参考来源 - 数字音频水印技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
如果某个量化字长能反映出输出弱信号的变化，输出信噪比主要取决于自适应运算的字长。
If the variation of input weak signal can be reflected by certain word length, the output SNR mainly depends on the word length of adaptive operations.
定量分析了星载合成孔径雷达（SAR）原始回波信号的量化噪声、饱和噪声以及误码噪声对面目标信噪比的影响；
The effect of quantification noise, saturation noise and bit error noise of synthetic aperture radar(SAR)raw data on the signal to noise ratio of distributed targets is analyzed.
提出基于量化噪声功率谱的信噪比（SNR）估算方法。
Offering SNR estimation method based on the quantization noise power spectrum.
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