z-transform z 中文意思是什麼
z-transform z
解釋
變換-
The time - domain measure technique of vector network analyzers base on inverse chirp - z transform
逆變換矢量網路分析儀時域測量技術 -
Dynamic weighing system is as a second - order system and set it up model, then has its transform function laplace transform and z transform, at last has a formula that m is only relation to the system parameters. this article has system identified with the recursive least square ( rls ) method, and has the system parameters, while the auto - regressive - moving - average ( arma ) model for the second order weighing system is firstly derived. and has a equation which the mass is only correlation to the system parameters
論文具體分析了定量稱量問題，首先是把稱量系統看作是一個二階系統，建立數學模后，進行拉普拉斯變換和z變換后得出一個質量僅與系統參數有關的關系式，從而把稱量問題轉化為一個系統參數識別問題來解決。通過編寫的程序來採集系統信號並進行處理（運用漸消遞推最小二乘法）對系統參數進行識別，從而得出稱量結果。 -
The total rna was purified from the germ in the liquid by the guanidine isothiocyantehod method, then the total rna digested by dnase that had not rnase was used for rt - pcr. i change the magnesium ion dencity in the pcr system in order to optimize the pcr condition. at the end i selected the magnesium ion density as 1. 25 mm. the production of rt - pcr was inserted directionally into pgem ? z ( ampr ). the pgem ? z ( ampr ) was used to transform e coli jm109. i got a positive clone through culling and identificatin. the dna sequence inserted into pgem ? z ( ampr ) was sequenced and blasted with the cdna sequence of the # - mannanase mature peptide that got from genbank
分取誘導培養液中的菌體，用異硫氰酸胍法提取總rna ，總rna再經無rna酶的dna酶處理後用于rt ? pcr 。在pcr擴增目的基因時，通過優選擴增體系，使鎂離子濃度為1 . 25mm時rt ? pcr可順利地獲得目的基因，並能定向克隆到載體pgem ? 3z （ amp ~ r ）中。用克隆載體轉化宿主大腸桿菌jm109 ，通過篩選獲取陽性克隆子，對陽性克隆子進行酶切與pcr鑒定，並對載體中插入的目的基因進行測序。 -
In recent decades, people have made a research in single channel deconvolution problems, for example, the traits, fast algorithm of deconvolution results and process for error. they proposed many methods, such as inverse filter algorithm, z transform algorithm, dfs algorithm, l2 algorithm, recursion algorithm
幾十年來，人們對單通道信號卷積反演問題如反卷積解的性質、解的快速演算法及對誤差的處理等進行了深入的研究，並取得了不少的成就，如逆濾波法、 z變換法、遞歸法、 dfs法、最小平方法等。 -
Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function
分析中可以發現，中心差分方法， newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的，中國地震局工程力學研究所頃土學位論文一但是中心差分方法， newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大，系統的固有自振周期被改變，其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。 -
Operations guide : z bond with net capturing the stars, x - button shooting, key to control movement and squat jump, h bond transform hairstyle, w key transform clothes
操作指南： z鍵用網捕抓星星， x鍵射擊，方向鍵控制移動跳躍和下蹲， h鍵變換發型， w鍵變換衣服 -
Ultrasonic backscattering microstructure feature of tissue s scatterer based on chirp - z transform cepstrum
變換頻譜細化倒譜分析生物軟組織散射微結構特徵 -
A chirp - z transform ( czt ) algorithm on the which is similar to range - doppler algorithm is studied, and the effective swath width is analyzed. secondly, a modified block czt algorithm is presented, which improvs the computational efficiency of the high - resolution sar imaging with wide swath
其次研究了一種與距離-多普勒演算法類似的線性調頻z變換（ czt ）演算法，分析了有效測繪帶寬度的問題；提出了一種改進的分塊處理czt演算法，提高了對大場景高解析度sar成像處理的計算效率。 -
The proposed algorithm lows the complexity by choosing decision delay in advance and then making solution of the equalizer tap coefficient, a new decision delay choice method is proposed, solution by using weight method, diagonal matrix transform, z extension and a new energy restrictive condition which restrains noise enhance, a new decision delay choice method is proposed, the simulation result shows that the proposed algorithm has better equalization effect and enhanced performance comparing to the general mmse algorithm, simulation research on the precision and dynamic scope of parameters in digital realization time domain equalization algorithm, design software and hardware of time domain equalizer. fourthly, there exist a lot of interfere in dsl line, especially, dsl works in multi - user mode, the near end interference is serious
通過先選擇判決時延，再進行時域均衡器抽頭系數求解的方法降低了時域均衡計算復雜度；對于均衡器抽頭系數的求解使用了加權技術，通過對角矩陣變換， z擴展，使用不同的能量約束條件對演算法求解，結果表明這種約束有效的抑制了噪聲增強，與常用刪se比較，該演算法有更佳的均衡效果，演算法性能得到了提高：論文還對數字化實現時域均衡演算法中每一部分參數的精度、變量的動態范圍進行了模擬研究，對時域均衡的軟硬體實現進行了設計。 -
Jpeg algorithm, as tile encoding standards for still photographs, has adopted the dct transform and z scanning. so jpeg can and should be the theoretical basis of ccst gtaphic character system
Jpeg作為靜止圖像壓縮編碼標準，並引入了dct變換和z形掃描等技術，可以也應當成為ccst信號圖形制編碼的理論基礎。 -
The system is composed with six sections which are entropy decoder, inverse z transform, inverse quantization, inverse discrete cosine transform ( idct ), up sampling and color space transform
Jpeg解碼演算法主要由熵解碼、逆z變換、反量化、反離散餘弦變換、內插和色度空間轉換六部分組成。 -
Scheme iii. a system combining fft algorithm with chirp - z transform to detect feedback rapidly and accurately. then, adopting a filter bank composed of 12 iir narrow - band notch filters to eliminate feedback
採用chirp - z變換（ czt ）演算法與fft演算法相結合對聲反饋進行檢測，使用由12個iir窄帶陷波器構成的濾波器組對聲反饋進行抑制。 -
This paper proposes a design of automatic feedback suppressor based on dsp : firstly, combining fft algorithm with chirp - z transform to detect feedback rapidly and set up the judging conditions based on the feedback characteristics to locate feedback accurately
本方案具有如下技術特點:第一，採用chirp - z變換（ czt ）演算法與fft演算法相結合對聲反饋進行檢測，並利用聲反饋信號建立前期的時頻特徵，設立判定條件。 -
In this paper, based on the study of single channel deconvolution, we made a research in double channel deconvolution. there are three cases when we find its results by dfs algorithm. the first is that z transform expression of results have no polar on the identity circularity. the second is that denominator have zero on it while molecular have zero to counteract. the third is that z transform expression of results have polar on it, which is well known that deconvolution kernel has no spectral inverse
本文在對雙通道信號卷積反演求解時採用較為簡便的dfs演算法，在求解過程中會遇到的三類情況，第一類是解的z變換表達式在單位圓上無極點，第二類是z變換表達式分母有零點但分子有相應的零點作抵消，第三類是z變換表達式在單位圓上有極點（即稱之為卷積核無譜逆） 。
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