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。
On the other hand, signal-to-noise ratio is estimated to provide a switching and power control and channel allocation algorithm for the channel quality information.
另一方面信噪比估计提供了切换，功率控制和信道分配算法所需的信道质量信息。
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。
That means a CW transmitter has to output 16 times more power than a PSK31 transmitter to gain the same signal to noise ratio on the receiving side.
这意味着一台CW发信机需要输出16倍于一台PSK31发信机的功率来提高接收端的信噪比。
The demodulation process of the generated DPASK pulses is investigated and the relationship between optical signal-to-noise ratio (OSNR) penalty and the input ASK power is presented.
我们研究了DPASK脉冲的解调过程以及输入ask信号功率与光信噪比代价之间的关系。
Correct noise power spectrum estimation and apriori signal-to-noise ratio (SNR) estimation are all essential to good quality of the enhanced speech.
噪声功率谱估计和先验信噪比估计的准确性有助于提高增强后的语音质量。
The detailed principle of detection is presented. The relationship of range accuracy and signal-to-noise ratio with laser power, telescope diameter, and pulse width are numerically simulated.
详细讨论了这种方法的实现方案，并对方案中的激光发射功率、望远镜口径以及脉冲宽度对距离精度及信噪比的影响进行数值模拟。
The second system is tunable laser light source based on semiconductor optical amplifier(SOA), light output power and signal-to-noise ratio are improved effectively;
第二套系统采用的是基于半导体光放大器（SOA）的可调谐激光器做光源，有效的增加了光源的输出功率，提高了信噪比；
The second system is tunable laser light source based on semiconductor optical amplifier(SOA), light output power and signal-to-noise ratio are improved effectively;
第二套系统采用的是基于半导体光放大器（SOA）的可调谐激光器做光源，有效的增加了光源的输出功率，提高了信噪比；
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