正弦真數 的英文怎麼說
中文拼音 [zhēngxiánzhēnshǔ]
正弦真數
英文
natural sine-
The data analysis has to compensate for the doppler shift to make any signal as sinusoidal as possible, which helps pull it out of the noise ( with something based on a fourier transform )
數據分析中比較對多普勒偏移進行補償以使信號盡可能地接近正弦曲線，以方便從噪音中提取真正的信號（通過傅立葉變換） 。The 1990s saw the fifth m & a frenzy, which was characterized by unprecedented scale and number. it was spearheaded by multinationals, a driving force behind the economic globalization, and was conducted throughout the world
但真正扣人心弦的還要是20世紀90年代以來，作為經濟全球化載體的跨國公司在全球經濟范圍內掀起的第五次企業並購狂潮，其規模之大、數量之多，令人目不暇接。The agilent technologies 33220a function arbitrary waveform generator uses direct digital synthesis techniques to create a stable, accurate output signal for clean, low distortion sine waves
Agilent 33220a函數任意波形發生器使用直接數字合成dds技術，可生成穩定精確純凈和低失真的正弦輸出信號The phasemeters will be calibrated by applying two digitally synthesized low distortion sine waves generated by the laboratory s phase angle standard
本所將用本所相角標準所提供的兩個數字合成低失真正弦波，對相位計進行校正。The simulation results shown that it is unbiased estimation for the wide band procedure and the narrow band procedure in the burg method and it approaches to the true using less data records in the condition of 1ower snr
伯格法可以從信噪比較低的條件下從噪聲中提取正弦信號，並且可以用比較少的數據記錄進行估計，估計結果很接近真實值。Faced with the fact that there is a great deal of noise in detecting signal when using small amplitude lasting sine current on field, a developed lease minimum squares method is adopted, which makes the parameters of sine sequence with known frequency picked up on the real time. at the same time, original signal is processed by using wavelet theory, gaining true information which responses to the coating quality
在小幅度正弦恆電流激勵檢測中，針對現場檢測信號含有大量噪聲這樣的情況，採用改進的最小二乘法，實現頻率已知的正弦序列參數的實時提取；同時利用小波理論對原始信號進行處理，得到反映塗層性能的真實信息。分享友人