The signal average method was used in order to increase the S/N ratio, and the optimum sweep time and average times were experimentally determined.
为了提高信噪比,采用了信号平均技术,并通过实验确定了最佳采样时间和平均次数。
The preceding method is uses the signal in the frequency range energy distribution trick recognition goal, the actual test obtains approximately 83% average recognition rate.
前一种方法是利用信号在频域的能量分布特征识别目标,实际测试取得约83%的平均识别率。
The time domain average method is an efficient method to extract period components from the signal mixed with noise.
时域平均法是从混有噪声的信号中提取周期性分量的最有效方法。
The method that combine the cumulative average and multi-resolution analysis in wavelet transform was presented which can de-noise the weak signal collected from the sensor.
提出了对传感器采集到的微弱信号进行累加平均和小波变换中的多分辨率分析方法相结合去噪。
A detection method for weak signal with coherence average is presented, and the principle of cross-correlation detection is introduced.
提出了采用相干平均法提高信号的信噪比并检测微弱信号的方法,介绍了相关检测的原理。
The paper introduces the principle of multi-point average method and prove the method applicable and feasible according to the application of standard signal and practical signal in engineering.
介绍了多点平均方法的原理,以标准信号和工程实际信号的应用研究验证了所述方法的实用性和可行性。
The power spectrum of the noise and signal are estimated by the average smooth periodogram method.
用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。
After analysed the principle of time domain average method, the conclusion can be got that this method can extract the useful signal and keep the linearity phase change.
通过对其原理的分析,证明了该方法在实现对有用信号滤波的同时也保证了信号的线性相位变化。
Using the method of transition probability flow graphs (TPFG), the average sampling number to signal for these charts is given, and the average time to signal for these charts is deduced.
利用转移概率流图(TPFG)方法得到了发信号前的平均样本数,进而推导出了发信号前的平均时间。
Two-velocity analysis method can develop the pile integrity test, average wave speed and wave-up curve separated from measured signal under the condition of existed foundation.
采用双速度测试和分析技术可以解决在既有基础下基桩的完整性、平均波速以及从实测信号中分离出上行波曲线。
Secondly, a new method of moving average-Kalman filtering proposed is used to process the MEMS gyroscope signal of the gyro stabilized pod control system.
在陀螺稳定吊舱算法研究中,本文首先通过对微机械陀螺信号进行处理,提出了一种滑动平均—卡尔曼滤波方法。
Experimental results indicate that the average gradient has been improved by 67.1% and the detail-signal energy improved by 65.2%, which proves the effectiveness of the proposed method.
结果显示,各波段图像平均梯度提高了67.1%,细节信号能量提高了65.2%,结果证明了MTF检测方法的有效性。
Experimental results indicate that the average gradient has been improved by 67.1% and the detail-signal energy improved by 65.2%, which proves the effectiveness of the proposed method.
结果显示,各波段图像平均梯度提高了67.1%,细节信号能量提高了65.2%,结果证明了MTF检测方法的有效性。
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