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- In low Signal to Noise Ratio (SNR) range, the close-form expression of the optimal BFV is derived. 在低信噪比区域，求出了最优波束成形向量的闭合解；
- This estimator has the advantage of high accuracy even on low signal to noise ratio conditions, but its implementation is relatively simple. 这种频率跟踪方法的优点是即使在很低的信噪比下仍然能获得高的跟踪精度，且实现相对简单。
- This paper presents a structure based on noncoherent-SPRT algorithm for the sequence acquisition under large frequency offset and low signal to noise ratio in DS/SS systems. 该文研究大频偏低信噪比情况下DS/SS系统中的序列捕获问题,介绍了一种基于非相干序贯检测算法的捕获结构。
- Numerical results show that for the data with either high or low signal to noise ratio (SNR), inversion solution depends weakly on regularization operators, while strongly upon regularization parameter. 模拟表明，无论是高信噪比数据，还是低信噪比数据，反演的含水量在小正则化参数时，对模型约束的依赖性不大，主要受正则化参数影响。
- How to detect the LPI radar signal and estimate the signal parameters in low signal to noise ratio condition is very important in modern Electronic Warfare (EW). The research in this field is belongs to the frontier of EW technology. 如何在低信噪比下检测LPI雷达信号并进行参数估计在电子战中具有重要的意义，这方面的研究至今属于电子战的前沿课题之一。
- An algorithm based on the Haar wavelet transform(HWT) was developed for blind estimates of pseudo-random code(PC) rates and symbol periods of direct sequence spread spectrum(DS/SS) signals in low signal to noise ratio environments. 为解决低信噪比下直扩信号的参数估计问题,提出了一种基于H aar小波变换实现直扩信号伪码(PC码)速率和符号周期盲估计的新型算法。
- Symbol Timing Estimation under Large Frequency Offset and Low Signal to Noise Ratio in OFDM Systems 大频偏低信噪比条件下OFDM系统中的符号定时估计
- S/N (signal to noise ratio) is low about from 1.315 to 1.668 (average S/N). 信噪比很低，估算平均信噪比在1.;315一1
- low signal to noise ratio 低信噪比
- A FFA and TFA based interception of LPI frequency hopping signal is presented in this paper. the algorithm can detect the frequency hopping signal effectively in low Signal to Noise Ratio (SNR); 该文提出了一种新的低截获概率(LPI)跳频信号的截获方法，该方法基于快速折叠算法和时频分析。在低信噪比环境下，该方法能有效检测跳频信号；
- Input signal autorange for optimum signal to noise ratio. 自动输入信号调控,以获得最佳信号与噪音的比。
- A TIME-DOMAIN AVERAGE METHOD TREATING THE CASE OF LOWER SIGNAL TO NOISE RATIO FOR MODAL PARAMETER IDENTIFICATION 低信噪比情况下识别模态参数的时域平均方法
- The pulsar signal is a kind of typical nonstationary random signal which SNR (Signal to Noise Ratio) is very low. 摘要脉冲星信号是一种典型的非平稳信号，且信噪比非常小。
- State of the art fiber optic components deliver high signal to noise ratio and long-term stability. 光缆联接的光路保证了系统的柔和性以及高信噪比和长时间工作稳定性。
- Methods of estimating baud rate, Signal to Noise Ratio (SNR) and reference phase are investigated. 研究了自适应调制中波特率，信噪比和载波相位等参数的估计算法；
- Signal to Noise Ratio (SNR): The ratio of the signal to the random noise in a set of data. 信噪比：平均到一个数据单元的信号与随机噪声的比值。
- Comparison of RLS algorithm and LMS algorithm for different signal to noise ratio in the case of the learning curve. 比较RLS算法和LMS算法在不同信噪比情况下的学习曲线。
- A simulation indicates that the Laplacian assumption of coefficients yields a higher actual output signal to noise ratio than the Gaussian assumption. 模拟结果显示 ,假设高频部分符合拉普拉斯分布可获得比高斯分布假设更高的恢复图像信噪比。
- The requirements for external vibration is put forward by means of signal to noise ratio of dynamic balance measuring system. 根据动平衡测试系统信噪比对外界振动提出了要求。
- The Nikon approach (large sensor area and large pixel sizes to improve the signal to noise ratio might be a more sensible solution). 尼康道路：采用更大的传感器和更大面积的像素来降低信噪比，似乎更合理一些。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
