杨元喜还对“GNSS互操作性的定量评估”表示赞同，并指出，对于多系统接收机而言，普遍的最大/最小接收功率电平可以改善信噪比环境。
Yang argued for a “quantitative evaluation of GNSS interoperability, ” noting that common maximum/minimum received power levels can improve the signal-to-noise environment for multisystem receivers.
机载SAR为提高信噪比并同时减少发射功率，往往使用较高的脉冲重复频率(PRF)。
For improving the SNR and the reducing transmit power of the SAR simultaneously, airborne SAR often use high PRF (Pulse Repetition Frequency).
该估计器能以较低的计算复杂度给出RDS、噪声方差、信道功率和信噪比等多个实时信道参数的准确估计。
The estimator presents both the estimate of instantaneous RDS and the estimates of noise variance, channel power and SNR of current channel with low computational comp.
在零路径色散补偿系统中，线性色散得以完全补偿，为了减小非线性效应引起的脉冲窄化，系统必须保持较小的功率，但这样会影响系统的信噪比。
So, optical pulse's peak power has to be kept very small. However, when polarization mode dispersion is considered, the nonlinear effect can be balanced.
啁啾脉冲放大（CPA）技术的关键在于提高高功率短脉冲的信噪比。
The development of chirped -pulse amplification (CPA) technique requires to optimize CPA for the production of high power ultrashort light pulses with low pedestal.
并用动态信号分析仪和功率计校准输出信噪比。
Then the output S/N is calibrated DA with the dynamic signal analizer and power meter.
同时进一步分析了在大信号、高泵浦功率条件下高速光脉冲信号放大过程中的各种畸变特性以及放大的自发辐射对系统信噪比增益的影响。
The character of high speed light pulse distortion and the fluency of the amplified spontaneous emission on the SNR gain under high power signal and pumper are analyzed.
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。
The benefits of large effective area fibers are higher power handling capability for improved system signal to noise ratio (SNR), and longer amplifier spacing.
然而，在低信噪比区间，且已知信道状态信息时利用自适应注水功率分配算法，信道相关性对信道容量具有提升作用。
However, when the channel information at the transmitter is known and the self-adaptive water-filling power allocation algorithm is used, the channel correlation may lead to higher channel capacity.
文章给出了计算OXC级联信噪比的一般解析模型，并针对“信号功率均衡”和“总功率均衡”两种方案进行了研究，分析了在这两种特定情况下系统的信噪比特性。
We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper.
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 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.
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。
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.
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;
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。
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.
血清不加抗凝素且使用低功率的激光可以得到重现性、 信噪比都较好的谱图，以便利用光谱法诊断疾病。
The reappearance and sign-noise ratio of laser Raman spectra of serum are better with the lower laser power and without heparin, which is a chief condition for the diagnosis of breast cancer.
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.
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。
Correct noise power spectrum estimation and apriori signal-to-noise ratio (SNR) estimation are all essential to good quality of the enhanced speech.
结果表明，目标形状在较近距离情况下对测距机的接收功率和信噪比有显著影响，而在较远距离时，其影响可忽略。
The results show that the target shape can affect the ranging performance evidently relatively near, but it can be ignored in far distance.
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。
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。
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.
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