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- By use of wavelet decomposition reconstruction algorithm, the vibration signal is de noised and the signal noise rate is improved, the loss is low. 利用小波分解重构算法 ,对振动测试信号进行去噪处理 ,改善测试信号的信噪比 ,减少信号损失。
- Raw thermal images acquired by pulsed thermography (PT) usually have low signal noise ratio (SNR) and temperature contrast. 摘要脉冲热像检测中直接获取的原始热像往往信噪比较低、对比度较差。
- The relation of the convergence of this algorithm with the spreading rate, interferential power, and the SNR (signal noise rate) is analyzed theoretically and examined through simulation. 本文从理论上分析和仿真验证了该算法收敛特性与干扰信号功率、信噪比和扩频比的关系。
- A Method of Improving Low Signal Noise Ratio Performance for Space-Time Block Codes 一种提高空时分组码低信噪比性能的方法
- Experiment results show that in low bit rate environment, the new image compression scheme performs better than JPEG in the aspects of perception and PSNR (Peak Signal Noise Ratio). 实验结果表明该算法在低码率下,相比JPEG,获得了在视觉效果和峰值信噪比方面更好的恢复图像质量。
- Perhaps smiles bypassed my strange signal noise. 或许微笑绕过我奇怪的信号噪声。
- Used in low signal and time constant circuits. 适用于低信号电路、时间常数电路。
- signal noise rate 信号噪声比
- Flow noise is one of main self noise which has an importan effect on the signal to noise rate of towed linear sonar. 流噪声是影响拖曳线列阵声纳信噪比的一种主要自噪声。
- The autofocus algorithm not only need enough precision and computational efficiency, but also need fitting low signal to clutter rate (SCR). 自聚焦除了要有足够高的精度和高计算效率外,还要求能够适应信杂比较低的情况。
- 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;
- Below the speed limit, the signal noise ratio of the BEMF signal that is superposed by the PWM signal is too low. 低于这个最起码的初始工作速度,反电动势将被淹没在PWM信号里。
- The subjects in high signal rate task outperformed the subjects in low signal rate task and reported less state boredom. 提高信号率可以提高被试的作业绩效,减少厌烦感。
- 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。
- It is difficult for moving dim target to tracking and detect because the Signal Noise Ratio(SNR) of target is low and it has not texture etc. 研究低信噪比弱小目标的实时检测及跟踪算法,其困难主要为:目标信噪比低,无纹理特征。
- 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。
- Hemangioma showed slightly low signal on T 1WI and high signal on T 2WI. 血管瘤T1WI呈略低信号 ,T2 WI呈高信号 ;
- MR showed low signal intensity on T?1WI and iso?signal intensity on T?2WI. MRI表现为SE序列T1加权低信号,T2加权等信号。
- If a signal has a lot of hiss and noise in stereo but is quiet in mono, multipath is usually the cause. (Low signal strength or interference can cause similar symptoms. 如果信号有很多嘘声和噪声在立体音响但是安静在单音,多重通道的通常是起因。(低信号强度或干涉可能导致相似的症状。
- The final result shows that the method of wavelet de-noising is very helpful for the filtering of signal noise. 对研制的虚拟仪器进行了实验测试,结果证明:小波消噪对信号噪声的滤除有显著的效果。