羅差曲線 的英文怎麼說

中文拼音 [luóchāxiàn]
羅差曲線 英文
deviation curve
  • : 羅名1 (捕鳥的網) a net for catching birds 2 (篩子) sieve; sifter; screen 3 (質地稀疏的絲織品...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 羅差 : compass deviation
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. During the instantaneous frequency estimation of lfm, there exists some error in the edge, so in the dissertation, a fitting method is proposed to modify it. from the computer simulation, the following result is obtained : for cw, the method based on cwt is most effective, and with the snr rising, the error curve of it is more and more closer to crb. for lfm, the method based on wvd gives the best result, and the effects of cwt and stft are similar for multi - component signal, compared to stft and wvd, cwt is a better choice

    通過模擬發現,在單頻回波的瞬時頻率估計中,基於cwt的方法最為有效,隨著信噪比的提高,其均方誤越來越接近克拉美?界;在性調頻回波的瞬時頻率估計中, wvd法得到的效果最好,而cwt與stft法的估計效果比較接近;在多分量信號的瞬時頻率估計中,相對于stft和wvd法, cwt法是一個更好的選擇。
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