均方誤差比 的英文怎麼說

中文拼音 [jūnfāngchā]
均方誤差比 英文
mser
  • : Ⅰ形容詞(均勻) equal; even Ⅱ副詞(都; 全) without exception; all
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • : Ⅰ名詞(錯誤) mistake; error Ⅱ動詞1 (弄錯) mistake; misunderstand 2 (耽誤) miss 3 (使受損害...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • 誤差 : error
  1. The amplitudes of the two ffts are the same, but their phases, < px and < p2, changes with the range differently

    Rao下限,在信噪為6db , fft長度為1024的情況下,頻率估計小於fft頻率解析度的1 。
  2. When compared with single factor analysis of variance, covariance analysis reduced efficacy evaluation error resulting from uneven weed distribution in the field

    結果表明,與按單因素試驗分析相,協分析法可以減小因雜草田間分佈不勻而導致的調查
  3. 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的法最為有效,隨著信噪的提高,其曲線越來越接近克拉美?羅界;在線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。
  4. Secondly, it was. made theoretical analyses about the optimal training sequence design by the maximum likelihood estimation method and obtained the corresponding results, which were compared with the separate results derived by the minimum mean square error ( mmse ) estimation method in the other literature. at last, it was analyzed the impac

    其次進行了採用最大似然( ml )估計法的最佳訓練序列設計的理論分析,分別得到了有關結果,並和其他文獻中採用最小( mmse )估計法的設計結果進行了分析較,得到了有關結論。
  5. In this paper, we emphasis on the distributed mimo zero forcing detection, maximum likelihood detection and minimum mean square error detection. the simulation results are presented to compare the proposed distributed mimo detection algorithms

    本文重點闡述了分佈mimo的迫零檢測演算法、最大似然檢測演算法和最小檢測演算法,並通過模擬較了這三種分佈mimo檢測演算法的性能。
  6. The critical error has been found through computation, which is the error circling the gear. the load sharing characteristics of two kind of star - type gearing train has been determined through comparison. based on computation, the load sharing capability of two - stage external gear train is better than that of two - stage internal and external gear train

    其次,從靜力學的角度分析了各對系統載性能的影響,較了各對系統載性能影響的大小,得到了較大的影響系統載的因素,即圓周向分佈的較了兩種星型齒輪系統的載性能,根據計算結果,兩級外嚙合傳動系統的載性能要好於兩級內外嚙合傳動系統。
  7. The initialization method to achieve different equalizer delay local minimum is proposed for btea and se. comparison study using several uwac with different zero locations is made to demonstrate the equivalent of different initialization method for least mean square ( lms ) algorithm, btea, se and cma

    盡管常數模盲衡演算法的初始化仍然是一個公認的未能解決的問題,但本文通過幾條不同零點位置的水聲通道,對研究了自適應最小演算法、倒三譜演算法、超指數演算法和常數模演算法的不同權向量初始化的等效性。
  8. The experiment on a blurred text image restoration shows that the mean square error ( mse ) of the improved nas - rif algorithm has a better convergence, and that the signal to noise ratio is improved

    對文字模糊圖像的模擬結果表明,與原始演算法相,改進演算法的曲線收斂性及穩定性更好,提高了恢復圖像的信噪
  9. The comparisons between the two most important biased estimators, ordinary ridge estimator and principal components estimator, and ls estimator are conducted by using the criterion of mean squared error ; and the conditions to show the superiority of each of these two estimators over the ls estimator have been obtained. then, the tests have been suggested to verify whether or not these conditions hold in given situations by using the statistical method

    準則下對目前應用最廣泛的兩種有偏估計? ?嶺估計和主成分估計與ls估計進行了較研究,得到了嶺估計、主成分估計優于ls估計的條件;然後運用統計法對這些條件的成立進行了檢驗,從假設檢驗的角度解決了有偏估計與ls估計之間的選擇問題。
  10. Performance simulation of the proposed estimator including mean squares error ( mse ) of channel and uncoded bit error rate ( ber ) have been taken, and the results show the estimator is efficient and very flexible

    對通道盲估計的( mse )和由此演算法獲得的通道的狀態信息,對無編碼的ofdm系統進行解一調的特率進行了模擬。
  11. Comparing with si ( sin ( x ) / x ) interpolator, cubic interpolator with low pass filter, and winner interpolator in 16qam ofdm system both in mean square error and bit error rate without encoding, the results of the method proposed by this thesis show that the performance is better than si interpolator and cubic interpolator with low pass filter, and close to the winner interpolator but the complexity is much lower than the latter

    在16qamofdm系統中,將其與帶低通濾波器的si ( sin ( x ) / x )插值法、 cubic插值法和winner插值法進行了通道估計的和無編碼的特率的模擬結果進行了較。結果表明,本法的估計性能優于si和cubic插值法,接近優化的winner插值法,但其計算復雜度與winner插值法相卻大大降低。
  12. The accurate float ambiguity solutions and their msem ( mean squared error matrix ) are obtained using several - epoch single frequency phase data. combining with lambda method, the new approaches can fix the integer ambiguities correctly and quickly using msem instead of the covariance matrix of the ambiguities

    法只需要解算幾個歷元的單頻gps相位數據,可以得到較準確的模糊度浮動解及其相應的矩陣,用矩陣代替協陣,結合lambda法,可準確快速地解算模糊度。
  13. Based on the obtained lower bounds on mean squared channel estimation errors, the limits on bit error rate ( ber ) for maximal ratio combining ( mrc ) with gaussian distributed weighting errors on independent and identically distributed ( i. i. d ) fading channels are presented

    通過對不同衰落通道多普勒譜的積分,求出了相應的通道估計下界的閉合表達式,並在此基礎上得到了分集系統在獨立同分佈的衰落通道中採用最大合併時的碼率下界。
  14. According to this, we propose a new way to renew the traditional method of subjective image quality evaluation, different to only use mse ( mean square error ) and psnr ( peak signal - to - noise ratio ) to evaluate merely on radiation distortion, and complemented quantitative description on compressed image distortion o it is significant to choose the format of video transferation and measuring precision calculation of tracking and measuring systems based on images

    中國科學院長春光機與物理研究所博士學位論文據此提出了不同於傳統的僅用( mse )和峰值信噪( psnr )來評價圖像灰度輻射畸變的新思路,補充了對壓縮圖像幾何畸變的定量描述。這對于基於圖像的測量跟蹤系統中數字圖像傳輸式的選擇,以及評價壓縮解壓演算法對測量精度的影響有重要意義。
  15. The signal ' s energy is made unitary by whiten before detection in order to simplify the expression of kurtosis. after that we also make use of the advantage of subspace separation to reduce the rank of the signal. thirdly, in order to suppress the effect of time various channel, the adaptive signal processing techniques are studied and an improved adaptive method based on lms ( least mean square ) is proposed

    為了能更好的跟蹤通道的變化,論文還研究了自適應信號處理的法,並針對最小法進行了改進,改進后的法在收斂速度傳統的最小法有很大改進,並且和傳統法相它還有收斂速度對收斂步長不敏感的優點。
  16. To signaling with no constant modulus ( such as 16qam ), the switch algorithm is able to achieve less residual mean square error than that of cma

    該切換演算法,對于非常數模信號(如16qam等) ,可以獲得常數模演算法更小的剩餘
  17. Meanwhile, the telephone gateway in tetra system is introduced. in further research, the principle of tetra speech coding algorithm ? algebraic codebook excitation linear prediction ( acelp ) is introduced and analysed in detail, which is a advanced codebook excitation linear prediction ( celp ). acelp algorithm replaces the excitation signals with algebraic codebook and uses some technique such as minimizing the mean square error ( mse ) and the analysis - synthesis method to obtain characteristic parameters of speech

    同時,介紹tetra系統的市話網關,並在接下來的研究中詳細介紹tetra電話網關中應用到的語音編解碼演算法? ?代數碼本激勵線性預測碼( acelp )的基本原理,它是一種簡化了的碼本激勵線性預測碼( celp ) ,它把激勵信號用代數碼本代替,並且運用了最小、分析?合成等技術提取出語音的特徵參數,極大地降低了特率,而且具有較好的重建語音質量。
  18. As far as the general mixed - linear model is concerned, this paper explores the two - staged prediction of the linear combination about the fixed effects, and the random effects and meanwhile an approximate computation formula is derived for the mean square error of the two - staged prediction which paves the way for comparing and contrasting the advantages and disadvantages of different variance components

    摘要對一般的線性混合模型,研究其固定效應與隨機效應線性組合的兩步預測問題,給出了兩步預測的一個近似計算公式,為較不同分量估計的優劣性進一步奠定了基礎。
  19. The main contributions of this thesis are as follows : ( 1 ) the conventional minimum output energy ( moe ) algorithm has the global convergence but its stable excess mean square error is high and it ca n ' t converge to the minimum mean square error ( mmse ). in this thesis an equivalent decision feedback moe ( df - moe ) algorithm variable step - size is presented and analyzed

    主要工作可以概括如下: ( 1 )針對最小輸出能量檢測器( moe )具有全局收斂,但是穩態剩餘均方誤差比較大,無法收斂到最佳mmse檢測器的特點,提出並分析了一種等效的判決反饋變步長moe檢測演算法(簡稱df - moe : decidedfeedbackmoe ) 。
  20. Some related res ults have been acquired after comparing these cdf with the theoretical capacity. in the fourth chapter, it was at first estimated all the channel coefficients by maximum likelihood estimation and minimum mean square error estimation method on the basis of the construction of the transmission frame and the mathematical model for the wireless mtmo system of channel estimation with training sequence

    第四章首先基於訓練序列估計的無線mimo傳輸幀結構和數學模型,分別使用最小估計法和最大似然估計法估計出了通道的各個系數,在小信噪和大信噪時,較了兩種估計法的估計
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