snr的例句大全

Calculation Methods for the SNR of Diffraction Grating Efficiency Measurement System

红外光栅衍射效率测量系统信噪比计算方法的研究

This paper deduces the NDA SNR estimation algorithm for QAM signals in additive Gaussian white noise channel and on the condition of the equivalent a priori probability of transition signals positioning on every constellation point by using statistics.

该文利用统计量的知识，推导了QAM信号在加性高斯白噪声信道且星座任意一点的发送概率相同条件下的非数据辅助（盲）信噪比估计算法。

Alternating notch periodogram algorithm ( ACPA) based on maximum likelihood ( ML) can regarded as a complete solution to the discrete spectrum estimation problem since it achieves superresolution, very high accuracy, and low SNR threshold.

基于最大似然法的交替陷波周期图算法（ANPA）是一种超分辨率的谱估计算法，它同时具有超分辨率、高精度和低信噪比门限的特性。

Simulation results show that the UPM algorithm has good performance and is more suitable for the lower SNR environment.

仿真实验表明UPM算法具有优良的估计性能且更适合于低SNR环境。

Research on the Capabilities of IFM for Low SNR Signals

IFM测量低信噪比信号能力研究

Within a certain range of SNR, error correction code can correct error effectively, and improve system performance.

在一定信噪比范围内，纠错码可以有效进行纠错，改善系统性能。

Testing with the average segment SNR and Perceptual Evaluation of Speech Quality ( PESQ), the improved algorithm is close to G.

用平均分段信噪比和感知语音质量评价（PESQ）测试，改进算法编码质量接近于G。

The AKF model of nonlinear OMS has been establish. The initial AKF parameters has also been set up to optimize the performance of the filter according to the abruptly variational Signal-to-Noise ( SNR) of the OMS Signal.

建立了针对非线性OMS的AKF模型，仿真分析中针对存在突变信噪比（Signal-to-Noise，SNR）的输入信号设置相应AKF初始参数使滤波性能达到最优。

This method is more accurately under the same circumstance Noise Ratio ( SNR ) .

仿真表明该算法在同等信噪比情况下,有较高的 估计精度.

A method to identify the modulation levels of M-ary Quadrature Amplitude Modulation ( M-QAM) and M-ary Amplitude shift keying ( M-ASK) was developed to rapidly and automatically identify the modulation levels of digitally modulated signals at low signal-to-noise ratios ( SNR).

为了快速自动识别低信噪比下的数字幅度调制进制，提出了一种识别M进制正交幅度调制（M-QAM）和M进制幅度键控（M-ASK）的调制进制的方法。

The SNR of the circuit with the matched resistance is more than 10 times as great as the one without it.

电路在配置匹配电阻时输出信号的信噪比是无匹配电阻时的10倍以上。

A Fine Characteristic Detecting Method of Low SNR Phase Coded Signal

低信噪比的相位编码信号细微特征检测方法

Analysis and Experimental Verification of Sensitivity and SNR of Laser Warning Receiver

激光告警接收机灵敏度和信噪比分析及实验验证

As an important feature, the characteristics of echo stretching affects SNR of received laser echo signal and ranging accuracy.

脉冲展宽特性是激光回波的重要特性，其影响到回波接收信噪比和测距精度。

The adaptive modulation opportunistically transmits more information over subcarriers of the UWB with better SNR.

通过自适应调制,在信噪比较好的子载波上传输更多的信息,从而提高了超宽带链路的鲁棒性.

Through a process to enchance the noise speech signal, the SNR increased by 2& 7dB, with the result of its audibility improved.

这噪声信号通过增强处理后，使得信噪比提高了3～7dB，可听懂度得到改善。

The method , based on cross-ambiguity function, is more suitable for time delay estimation in low SNR.

这种基于互模糊函数的算法与传统的直接互相关法相比, 更适用于低信噪比情况下的时差估计.

Signal to noise ratio ( SNR) is required for maximum aposteriori probability ( MAP) decoder of Turbo codes, otherwise there is some loss of SNR. A new algorithm of SNR estimator is proposed, which is based on the high order statistic analysis.

Turbo码的MAP（最大后验概率）译码算法需要估值信噪比，否则会有一定的信噪比损失。

Experiment results show that the lower the input image SNR is, the better the performance of developed algorithm is comparing with the average filter and mean filter.

结果表明：该算法与均值和中值滤波器相比，输入图像信噪比越低，滤波效果越明显。

Signal to Noise Ratio ( SNR ) : The ratio of the signal to the random noise setdata.

全炉膛火焰的燃烧过程伴随着大量动态的随机噪声,这些噪声信号必须消除.