The wavelet resolution and the related delay process combined the method was applied to the remove the noise and to improve the signal noise rate of the system. 通过小波分解和互相关延时过程相结合的方法对信号去噪,提高系统的信噪比。
An Improved Extremum Median Filtering Algorithm in Strong Noise Rate 高噪声率下一种改进的极值型中值滤波算法
The Chinese character recognition system based on eight-shape code can effectively improve noise immunity and correct rate of the system. 基于八形汉字识别码的仿人汉字识别算法能够有效提高系统的抗干扰性和识别正确率。
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。
On Noise, Error Rate and Sensitivity of the Digital Optical Receiver 数字光接收机中的噪声、误码率和灵敏度
These techniques include voice activity detection, source controlled rate operation, comfort noise, rate switch, multi-band filtering etc. 这些手段包括活动语音探测,舒适噪声,速率切换,多带滤波等等。
So the kurtosis detection algorithm can be used in complex circumstance of multi-LFM signal with low signal/ noise rate. It can inhibit different kinds of Gaussian noise more effectively and be more suitable for the identification of complex signal. 因此峰度检测算法可用于低信噪比,多分量LFM信号的复杂情况下,并能有效地抑制各种高斯噪声,更有利于复杂信号的识别。
The restoring of low signal noise rate single ion channel signal and its estimation of parameters based on HMM 基于HMM的低信噪比离子通道信号的恢复及参数估计
This paper analyzes the impact of on-the-spot noise and the single frequency noise of the main frequency noises of woodworking machine-sander on workers 'physiological and psychological load from the aspect of the noise influencing heart rate. 该文从噪声对人体心率影响的角度,分析了木工宽带砂光机(BSG2713)的现场噪声及其主要频率的单频噪声对工人生理及心理负荷的影响。
Researching time-delay of signal with mode known is in condition that Low signal to noise rate ( SNR) and low sample frequency. 本文以低信噪比、较低采样频率为条件研究射频信号时延估计。
Analyzing and discussing network's tolerance to noise, convergence rate and the spectral leakage problem of the truncated signal expected to be extrapolated by using these conclusions, the paper presents an extrapolation algorithm for band limited signals based on alternating projection neural networks. 运用这些结论,在对网络噪声抑制、网络收敛速度及待外推信号因截断而造成频谱严重外泄等问题的分析与讨论的基础上,提出了一种基于交替投影神经网络的外推算法。
When the submarine is non-maneuver, the algorithm satisfies the requirement of reliability and also cuts short the process of search and iteration under the low signal noise rate ( SNR). 本艇不机动时,即使在低信噪比的情况下,该算法既满足了可靠性的要求,又缩短搜索迭代过程。
Research on Complex Signal Identification Based on High-order Cumulant under Low Signal/ Noise Rate 基于高阶累积量的低信噪比复杂信号识别研究
The simulation results showed that the proposed method exhibited better signal to interference plus noise rate and beamforming performances. 模拟表明新方法具有更高的信号干扰噪声比及更强的波束形成与旁瓣抑制能力。
To resolve the moving point target detection problem under the condition of low Signal Noise Rate ( SNR), a new point target detection algorithm based on generalized edge extracted by order morphology filtering is used. 为解决低信噪比运动点目标的检测问题,利用一种基于顺序形态滤波的点目标检测算法。
Medium noise and error rate in ultrahigh density computer hard disk systems 超高密度计算机硬盘系统磁记录材料的噪音和差错分析
Experimental results show that the graphic card is successful for its advantages of powerful function, reliable performance, low noise and high rate of function to price. 实验结果表明,该图象卡的研制是成功的,它具有功能强、性能稳定可靠、噪声低及性能价格比高等优点。
On the basis of carrier noise power density rate ( C/ N0) of GPS receiver, it analyzed the influence of suppressed jamming to carrier phase measuring accuracy of GPS receiver. 主要以GPS接收机的载波噪声功率密度比(C/N0)为基础,分析压制干扰对GPS接收机载波相位测量精度的影响。
In addition, the state space model and the structure property of signal space were fully employed in this article, therefore the better performance of the harmonic retrieval was gained under the additive hybrid colored noise background as well as lower signal noise rate. 本文还采用了状态空间模型来描述时间序列,充分利用信号空间的结构特性,进而最终实现了在有色加性混合色噪声背景下较低信噪比的谐波恢复。
In a three dimensional X ray coded imaging system, it is effective method to reduce the reduplicate noise of a certain layer image for enhancing the signal noise rate. X射线编码三维成像系统中,减少观察层上的重叠噪声是提高图像信噪比的有效方法。
In this range finder, an automatic noise threshold control circuit is used to automatically control average noise pulse firing rate. Such that a constant average noise pulse firing rate is obtained. 测距仪采用自动噪声电平控制电路动态控制噪声脉冲的平均发生率,使系统获得稳定的平均噪声脉冲发生率;
The ability of measurement distance of low cost Mini LD laser rangefinder and the signal noise rate SNR of system 小型低值LD激光测距仪的测距能力与系统的信噪比
It shows this method achieves a satisfying effect and has lower signal to noise rate So, it will be an effective method in measuring nV grade sine signal. 仿真结果表明,此方法在测量nV级微弱正弦信号方面取得了满意效果,且信噪比门限很低,有望成为测量nV级正弦信号的一种有效方法。
Spectral analysis on the signals in the measuring system is given, and the signal to noise rate is calculated, then the theoretical accuracy of phase difference is derived. 通过对信号频谱的分析,计算了测量系统输出的信噪比,从而得出了相位差测量的理论精度,随后进行仿真分析验证了理论精度。
At last, 4 parameters were introduced for evaluation of residential ventilation systems which were thermal comfort, noise, ventilation rate and life cycle costing. 我国目前尚无住宅换气系统评价体系,本课题主要从热舒适度、噪声、换气效果、生命周期总费用四个方面对住宅换气系统进行评价。
Based on the difference of the impact of noise in different voice, a new adaptive compensation Gaussian mixture model has been proposed, and it can improve the recognition performance in a certain range of signal to noise rate. 利用各语音段被噪声干扰的程度不同,提出了一种自适应补偿的高斯混合模型法,在一定信噪比范围内提高了系统的识别性能。
The fractal used in end-pointing detection has been researched, and the results show that it has better robustness compared with short-term energy and short-term zero rate, it is a better choice in the case of low signal to noise rate. 对分形维数在端点检测中的应用进行了研究,研究表明和短时能量、短时过零率相比,分形维数具有更好的鲁棒性,适用于低信噪比环境。
The system of speech recognition is to work in the environment of peace mostly. In the environment of noise especially strong noise, the recognition rate of the system of speech recognition will get serious influenced. 语音识别系统大都是在安静的环境中工作的,在噪声的环境中尤其是强噪声环境,语音识别系统的识别率将受到严重的影响。
The reliability analysis of the information utilizes the signal to noise rate in the algorithm. And a new prior information estimation method is presented, which efficiently reflects the noisy environment. 该算法在信号信息可信度上采用了信噪比分析,算法中还提出了有效反映噪声环境的先验信息估计方法。