斜率比法 的英文怎麼說
中文拼音 [xiélǜbǐfǎ]
斜率比法
英文
slope ratio method-
For rotor steel ( 30crlmolv steel ), the tests of low - cycle fatigue property are done under different temperatures. the fatigue life under different temperatures is researched to make up for the defects of the testing for foreign similar materials. when pull - stretch data is attempted to evaluate low - cycle fatigue data, the result shows that four - point associated method in middle - low life zone is done well under room temperature, but there are large errors of four - point associated method and general - slope method under other temperatures
在本文中,通過與國外同類材料的性能進行比較,國產材料與國外材料共有的材料特徵基本相同;對轉子鋼( 30crlmolv鋼)進行了不同溫度下的低周疲勞性能實驗,研究其在不同溫度下疲勞壽命,以彌補國外對同類鋼材測試的不足;採用拉伸數據預測低周疲勞壽命時發現,室溫條件下用四點關聯法在中低壽命區預測較好,在高溫條件下四點關聯法和通用斜率法都有較大誤差,需要進行改進。Based on the theory of mfl and a study on the signal characteristics ofac - mfl and ect : on one hand, it expouded the flaw identification model of “ slope ratio ” todetect the defects in panel, rob or pipeline ; on the other hand, the flaw - depth measurementmethod based on the characteristical frequency were used in ac - mfl. the application ofac - mfl was realized, and it showed the accordance of defect detection for these twotechniques
從其檢測原理出發,在與上述渦流檢測信號特點進行比較的基礎上,一方面,利用「斜率比值」識別模型實現了對板材、管材、棒材等表面缺陷的檢測;另一方面,利用交流信號的信息實現了基於拐點頻率的深度測量方法在該技術中的應用。Through the i 、 q component of ipix radar sea clutter data " s histogram analyses and by skewness and kurtosis computed, it is been shown that sea clutter amplitude is not rayleigh distribution ; through the comparison of amplitude histogram and distributed models with the same parameters, it is been shown that hh polarization clutter is lognormal distribution, whereas vv polarization is k - distribution ; at the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound k - distribution stochastic sequences whose covariance matrix is been given are been generated through sirp algorithm
文中先介紹了海雜波幅度的有關模型,通過對ipix雷達海雜波數據的i 、 q分量的直方圖以及傾斜度和峰度進行了分析和計算,證明了海雜波幅度不服從瑞利分佈;使用幅度直方圖和相同參數下的各種分佈模型進行比較,得出hh極化符合對數正態分佈,而vv極化服從k -分佈的結論;同時對海雜波的相關函數和功率譜進行了分析,最後使用sirp演算法產生了給定協方差矩陣的相關復合k -分佈隨機序列。The radiation patterns at different scan angle from - 20 to 20 degree are presented, and the angle difference between the maximum / minimum field points of their main beam shows the bse of the radome. at different frequencies, the radiation from the antenna has been discussed when azimuth scan angle ranges between - 20 degree and 20 degree. the relationship between
200 ~ 200范圍內天線的和方向遠區場、方位差方向遠區場;得到方位瞄準誤差、瞄準誤差斜率和功率傳輸系數隨掃描角和入射波頻率的變化關系;並將所得數據與文獻數據進行比較,表明間接射線法簡單、有效且精度較高。Dogleg control strategy was proposed for piston electronic control unit ( ecu ) engine of a small size unmanned helicopter in overrunning stage, and then compared with traditional method of increasing rotational speed in fixed slope
摘要針對小型無人直升機使用的活塞式電噴發動機的沖速段特性,給出了折線法的轉速指令控制策略,並與常用的固定斜率轉速指令增量的方法進行比較。The purpose of this paper is to compare the relative efficiency of complete case analysis and the regression calibration method in estimating linear regression parameters when covariates are missing
摘要本文主要探討在一部份的伴隨變量有缺失下,使用完整資料分析法與回歸校正法估計直線回歸斜率參數時,有效性的比較,並提供回歸校正法比完整資料分析法有效時,斜率參數應滿足的條件。We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr. adm ), such as slope overloading and grain noise. in this method, numerical sliding average filtering was used for filtering decoding speech signal. experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr. pcm ) signal, and considerably improves, the playback speech quality in naturalness, legibility and under standability
針對語音信號自適應增量調制( adm )方式中斜率過載和顆粒噪聲缺點,提出了一種改進方法,它利用滑動平均方法對解碼后的信號進行數字濾波.試驗和分析表明,該方法使解碼后的信號波形與原脈沖編碼調制( pcm )波形具有很好的一致性,使再生語音質量在自然度、清晰度和可懂度方面比改進前均有較大提高Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing
該方法利用表面熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點,發現在一定傾斜角度的觀測下,視場中植被與土壤的比例可以較好地反映植被和土壤與大氣進行湍流熱交換的貢獻率,所以稱該方法為最佳組分面積比法,用最佳組分面積比可以將任意角度下觀測到的輻射溫度訂正為空氣動力學溫度,經過地面和遙感數據驗證表明,用該方法計算的通量精度高於普通的單層模型。Some methods of evaluation water quality are studied, which are often used in water quality management. an example of estimating dongjiang cross - section is brought forward, which is using the isogradient obscure clustering method
採用幾種常用的水質評價方法進行效果對比,在對灰色聚類方法進行詳細分析的基礎上,應用等斜率灰色聚類決策方法,對東江惠州段部分斷面的水質數據進行評價計算。Moreover, the components of the radial acceleration are theoretically derived, and the processing methods such as the signal sampling, the dynamic marking and storing, the noise removing, the slope comparison and the onset detection of braking operation are described
文中對加速度傳感器信號的組成進行了理論推導,並闡述了傳感器信號的采樣、動態標注和存儲、平滑去噪、斜率比較以及制動起始時刻判定等的處理方法。The difference of the two methods is that the first is in the position of convex rate - distortion and the second is in the position of arbitrary rate - distortion curve
這兩種比特分配演算法的差別在於,第一種是在率失真曲線是下凸的情況下進行的,這種方法演算法是以率失真曲線的斜率為基礎的。This paper focuses on the research of fuzzy control, especially rule self - adjusting fuzzy control method. by theoretic analysis and simulations, the influences of parameters and system performance characteristic of some kinds of rule on - line self - regulating fuzzy control methods are discussed, and a novel real - time self - adjusting fuzzy control method ( vsrsafc ) is proposed from the diagrammatic point of view. in vsrsafc, the slope of the rectifying curve of rule scaling factor a is altered by the fine - tuning and coarse tuning combined mechanism to adjust the fuzzy control rules according to error e and error change ec, which more coincides with characteristic of system response than the conventional self - adjusting method that adjusts rule scaling factor only according to the error e, and has better static and dynamic performances than the latter
其中變斜率規則自調整模糊控制的效果較為明顯,它是基於插值的非線性規則自調整模糊控制的引申以及常規全論域規則自調整模糊控制的改進,該方法採用粗、細調結合機制,通過改變規則調整因子的修正曲線斜率,使系統同時根據誤差e以及誤差變化ec在線調整模糊控制規則,比傳統的僅基於系統誤差e的自調整方法更符合系統響應特性,可獲得更好的動靜態控制性能,特別是對于系統參數發生改變、控制參數選取不當等不良狀況,控制器仍能較快自調整,具有較強的在線自適應能力。Image offset method that is also fast can be applied to motion compensation, time - frequency method is intuitionistic and have a better accurate, which is applied extensively on offline. fractional fourier transformation method is not accurate, but which have some now application in signal processing
在多普勒調頻斜率估計中,時頻分析法比較直觀,估計精度也不錯,脫機處理中獲得了廣泛的應用,圖像偏移法估計速度快,在運動補償中得到了應用。In order to detect the edge contours of the object in images, several edge detectors are firstly introduced and we make a comparison of them in performance. a method for fitting a two - dimensional curve based on slopes of the curve is also shown
從圖像序列中檢測運動目標並估計其三維運動和結構,首先要從圖像邊緣提取開始,本文先對幾種常用邊緣檢測運算元性能進行綜合比較,接著闡述了一種基於邊界斜率的二維曲線形狀描述方法。In addition, based on fft and remainder algorithm, the modulation rate and initial frequency of sub - sampling uwb lfm signal are estimated unambiguously in negative snr
該方法通過fft和余數定理解頻率模糊,解決了負信噪比條件下超寬帶線性調頻信號調制斜率和初始頻率的估計問題。分享友人