查询词典 SNR

But the performance of these methods becomes poor in the lower SNR.

但是这些方法在低信噪比的条件下，性能均出现不同程度的下降。

Simulations indicate that significant SNR can be obtained and the system performance is better than that of single antenna case.

仿真实验结果表明，本文所提出的模型可以获得较好的信噪比，与单天线相比MIMO-OFDM系统性能明显提高。

And then an improved approach is proposed for estimating the SNR of SDR receiver.

进而提出一种改进的估计SDR接收机信噪比的方法。

The expressions of the SNR for both cases are obtained.

得到了两种情况下SN'R的表达式。

Simulation results are mainly embodied in SNR.

仿真结果主要体现为信噪比。

The statistical performance of the joint estimation method is discussed based on the simulation, and the results show the good performance of the method at low SNR.

研究了低信噪比情况下利用时频分析方法进行时延和多普勒频移联合估计的性能，表明联合估计方法的统计性能良好。

By using the estimated coefficients of the sub-channels, the SNR of each subchannel can also be obtained.

进一步利用信道估计系数，估计出各子信道的信噪比。

The SNR of DTI data is relatively low, which degrades the quality of visualized tensor field data.

由于DTI数据的信噪比较低，会影响张量场数据可视化的效果。

Because the output signal of the thermopile is very small, a chopper amplifier is needed in the front-end circuits to improve the SNR.

在这前端电路中，由於温度感测器的讯号相当小，截波放大器将在论文中被使用。

Combined with the decorrelation technique by pulse-to-pulse carrier frequency hopping, the proposed algorithm is used for preprocessing and can greatly lower the SNR threshold of superresolution implemented in frequency domain.

在该算法的基础上，结合脉间跳频回波去相关的设计，我们提出了在频域实现超分辨处理的有效方法，从而大大降低了超分辨处理的SNR门限。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。