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 sine wave curve 的翻译结果: 查询用时：0.181秒
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 sine wave curve 正弦波曲线(1)
 正弦波曲线
 In this paper, a method of precise evaluation on the frequency or period of periodic wave series is introduced, that is the digital filtering and the least mean square sine wave curve fitting. The errors of curve fitting are also discussed. 介绍了精确评价周期信号序列的周期的一种方法 ,使用的手段是数字滤波与正弦波曲线拟合 ,并讨论了其拟合误差情况。 短句来源
 “sine wave curve”译为未确定词的双语例句
 Aim\ The sine wave curve fit method is introduced which is a simple and useful evaluation method to evaluate the sampling rate of data acquisition systems. 目的　介绍数据采集系统采集速率的一种简单实用的精确评价方法 ,即正弦波拟合评价法 . 短句来源 And that of the west is just like a sine wave curve. 西向极光电集流在 72 0～ 1 44 0分这段时间的分布规律的拟合曲线类似正弦波形。 短句来源 The spectrum analysis and sine wave curve fitting are the most common methods used for ADC dynamic performance tests. 谱分析法和正弦拟合法是ADC动态特性测试的两种常用方法。 短句来源
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 The detection of sine wave in yawp 利用相关技术检测噪声中的正弦波 短句来源 The combined sine-wave signal proposed by R. 对R. 短句来源 And that of the west is just like a sine wave curve. 西向极光电集流在 72 0～ 1 44 0分这段时间的分布规律的拟合曲线类似正弦波形。 短句来源 SECANT ONE—WAVE SINE—SHAPED TRANSITION CURVE 反余弦—波正弦形缓和曲线 短句来源 r and the wave potential (?) . _r和波动势(?) 短句来源

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 In this paper, the evaluation coures of AC gain and offset of linear measurement system using the least square four-parameter sine wave curve-fit method is described. The uncertainty analysis of the evaluation is discussed, and in the meantime an example of evaluation and analysis is introduced in detail. The course and results can be used in the uncertainty analysis of some measurement standard or the uncertain analysis of AC gain and offset themselves. 介绍了四参数正弦波最小二乘法评价交流增益和直流偏移两项指标以及不确定度的分析和评价过程,同时给出了一个分析评价实例.该过程及结论可应用于对测量标准进行相应指标的不确定度分析上,也可用于估计指标本身的不确定度. This paper presents a new precise evaluation method for time base and trigger characteristics of digital storage oscilloscope. By using sine wave curve-fit method, the time-base, the slope of trigger, trigger level, trigger delay, and the trigger jitter have been evaluated accurately. The principle of measurement is proposed, the error analysis and the error sources of evaluation have been discussed in detail. 本文提出了一种数字存储示波器时基和触发特性的精确评价方法 ,通过使用正弦波拟合法 ,其时基准确度、触发沿斜率、触发电平不确定度、触发延时误差以及触发沿晃动被精确评价 ;详细描述了其测量原理 ,并给出了误差分析和实验例证 ,验证了该方法及过程的可行性。 Aim\ The sine wave curve fit method is introduced which is a simple and useful evaluation method to evaluate the sampling rate of data acquisition systems. Methods\ Besides filtering the noise and harmonic distortion of the sine wave, there is not any effects on the four parameters of sine wave in filtering in principle. The error sources are described, and finally some methods to reduce the uncertainty of evaluation are discussed. The imitation and expriment results before and... Aim\ The sine wave curve fit method is introduced which is a simple and useful evaluation method to evaluate the sampling rate of data acquisition systems. Methods\ Besides filtering the noise and harmonic distortion of the sine wave, there is not any effects on the four parameters of sine wave in filtering in principle. The error sources are described, and finally some methods to reduce the uncertainty of evaluation are discussed. The imitation and expriment results before and after filtering are given. Results\ By using the method in this paper, the uncertainty of sample rates evaluation results can be to 10\+\{-6\} magnitude level. After filtering, it can be to half or lower. Conclusion The method in this paer can be used to precisely evaluate sampling rates. 目的　介绍数据采集系统采集速率的一种简单实用的精确评价方法 ,即正弦波拟合评价法 .方法　核心技术除了采用最小二乘波形拟合手段外 ,还采用了一种性能独特的单频数字滤波器技术 ,该滤波器仅对噪声和谐波有滤除作用 ,从原理上说 ,对于正弦信号的幅度、相位、频率和直流分量 4个参数均无影响 .讨论了评价过程的误差来源 ,以及减小其评价误差的几种对策 ;并阐述了滤波方法及过程 ,同时 ,以滤波前后效果对比的方式给出了评价过程的计算机仿真结果 .结果　使用该方法评价采集速率 ,结果不确定度可达到 1 0 - 6量级 ,加上数字滤波器后 ,不确定度可降低一半以上 .结论　所述方法可以用于采集速率的精确评价 << 更多相关文摘
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