method of ratio estimation的意思|示意

The ratio of resistance change is tested using Four Probes Method. The average change reaches 103, and is near to 104 of the theory estimation.

四探针法测量了薄膜电性能，薄膜电阻率平均变化达到103，比理论上只相差一个数量级；

The estimation method of compression ratio is given also.

并给出了压缩比的估算方法。

The experimental results demonstrate that the method can give a better estimation of poles of damped exponential signals even in a lower signal-to-noise ratio (SNR) situation.

通过实验表明，该方法较其它方法简单有效，即使在较低信噪比的情况下，也能对极点作出较好的估计。

Computer simulations show that, even under low input signal-to-noise-ratio, the accurate estimation of DOA could be given when the virtual array method is applied to the planar array.

仿真结果显示：虚拟阵元法应用于面阵，在输入信噪比较低的情况下仍可以准确判断来波方向。

The initial estimation method of PU injecting dosage and application of different ratio of insufficient injection dosage in household refrigerator was introduced.

介绍了家用电冰箱注料量的初始估算方法和不同比例注料技术在家用电冰箱发泡上的应用。

The effective signal-to-noise ratio (SNR) and the accuracy of autocorrelation estimation are significantly improved through use of this method.

此法大大地提高了有效的信噪比(SNR)和自相关矩阵的估计精度。