gain error 中文意思是什麼
gain error
解釋
增益誤差-
Under the following stated condition, the error introduced by the irrespective absorption of non - vitamin a can be revised by the emended by formula to gain the right result
在以下規定的條件下，非維生素a物質的無關吸收所引入的誤差可以用校正公式校正，以便得到正確結果。 -
The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power, this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment, and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain, not on chip power
在干擾估計抵消濾波中，以往的非線性濾波要求干擾抵消濾波后擴頻信號功率遠大於殘余噪聲功率，進而假設碼片判決的誤碼片率基本為零，這一要求對軍用擴頻通信是不利的，而且也不符合擴頻通信利用擴頻增益降低誤碼率的原則。 -
An improved viterbi algorithm of dsp generat ion is brought up to, and a new coding gain testing system is designed. the system tests the coding gain of the error - control system, and the coding gain is 9. 4db which exceeds the proposed index. at last, some suggestions are presented for the work in the future
在對維特比譯碼演算法研究的基礎上，提出了維特比譯碼演算法基於dsp的改進方法，並且設計出一種新的編碼增益測試系統，對卷積編碼和維特比譯碼組成的差錯控制系統的編碼增益進行了測量，測試結果為9 . 4db ，優于設計指標，最後提出了一些對將來工作的建議。 -
A kind of gain error correction scheme for sample - and - hold circuit
保持電路中的一種增益誤差自校正方法 -
Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition
首先對漸開面二次包絡理論進行了深入的探討，推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件，相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率；此外，還對磨齒后工件的齒面誤差進行了理論分析；並在理論基礎上編制了相應的計算機程序，自動生成接觸線族及嚙合界限線，對不同參數條件下的嚙合情況進行分析，可以使工藝條件達到最佳狀態；最後研究了磨齒裝置，設計了磨齒機的傳動系統。 -
In order to improve test precision, techniques such as auto - gain control, proper sampling rate select and dithering should be applied into the data acquisition process, and data pre - processing techniques should be used to eliminate data with careless error and correct data with system error
為了提高測試精度，在數據採集中，可以採用量程自動切換、合理的采樣頻率以及加擾技術；對採集的數據，需要進行預處理，主要包括剔除含有粗大誤差的數據和消除系統誤差等。 -
Under rayleigh fading channel, we also simulated and compared ber in siso 、 simo and mimo systems. secondly, based on careful study the ber and the channel capacity under white noise channel under mpsk modulation when the channel is rayleigh fading, we duduced the expressions of stbc ’ s ber and channel capacity under rice and nakagami fading. and also analysed the performances through numerical simulation using matlab to testify the exactitude of the dudeced expressions. finally, there exists an error floor of stbc through studying on its performance on time - selectiv fading channel. we analysed the reason and proposed two new decode combination scheme to eliminated the error floor and the performance of stbc on time - selective fading channel is improved. and also compared the two scheme ’ s complication and snr gain
這些結果大部分是閉式結果，能比較準確地衡量空時塊碼的性能，並對不同衰落的性能做了相互比較，其結果對空時塊碼的實際應用具有一定的指導意義。實際的通道是時變的，分析了空時塊碼在時間選擇性衰落通道中產生誤差地板效應的主要原因是存在碼間干擾（ isi ） ，在此基礎上提出了兩種能消除誤差地板效應的譯碼合併方案，並對這兩種方案的復雜度和信噪比增益進行了比較。 -
Simulation result shows that four errors can be corrected at most. this algorithm can improve error - correction ability and coding gain
最好的情況可以糾四個錯誤，將原有糾錯能力提高了一倍，編碼增益也獲得相應的增加。 -
If a retransmission is needed, additional redundant bits for error correcting are sent. concatenation of an inner code and an outer code may provide a high coding gain and the capacity of a long code to correct errors
級聯碼是將兩個或多個單碼級聯，在不增加譯碼復雜度的情況下，可以得到高的編碼增益，達到與長碼相同的糾錯能力。 -
If the error occurs while the servo is on ( the motor is vibrating ) : please re - adjust the gain
伺服運轉中發生錯誤（馬達處于震動狀態） ：請再調整增益。 -
The lyapunov function is used to analyze the convergence of the general learning rule, and it is proved in theory that the general learning rule has the inherent factor which adjusts the coefficient values to gain the minimum error
通過理論推導，用李雅普諾夫函數分析和驗證通用參數學習規則的學習收斂性，揭示參數學習演算法朝最小誤差方向調整參數的內在因素。 -
The large c1 cap rolls off the gain of the regulator starting at a low frequency so that high frequency noise isn ' t amplified by the error amp
這個大的電容c1從一個較低的轉折頻率開始滾降，所以高頻噪音沒有被誤差放大器放大。 -
Performance of inflatable antenna reflector hinges critically on the precision of the membrane surface. if the error is not in the range of limit, it will heavily decrease antenna gain and increase sidelobe level
形面精度是決定充氣展開天線反射器性能的一個關鍵因素，如果誤差不在允許范圍內，那麼它會嚴重降低天線的增益，增加旁瓣電平。 -
The living example certification indicates that the neural networks model of this paper possesses the good convergence with the error back - propagation algorithm, and can pledge the satisfactory mapping precision, and gain the forecasting result of ideal, and provides the reliable basis for the policy decision
實例驗證表明本文的神經網路模型用誤差反向傳播演算法具有良好的收斂性，能夠保證滿意的映射精度，取得了理想的預測結果，為決策提供了可靠的依據。 -
The real - time automatic gain control makes full use of the delay feature of signal channel, and controls the synchronization of adc precisely, and adjusts the signal gain in real - time, and compensates the error in digital domain, at last, this kind of technology expands the dynamic range of system adc
採用的實時自動增益控制電路利用信號通路的延遲特性，精確控制模數轉換器同步，實時調整信號增益，在數字域補償誤差，擴展系統動態范圍。 -
Meanwhile, we have gained some achievement. 1. based on error variety of nonlinear control curves of ld output laser power by optoelectronic feedback measured, we take advantage of window pid control algorithm to gain high stability of laser power and reduce error amends at mostly
1 、基於光電池檢測ld光功率輸出的非線性控制曲線產生的誤差變化，將特性曲線利用軟體的窗口控制演算法實現區域控制，進而有效的對ld工作電流進行pid穩態控制和光功率參數顯示，且激光器的光功率輸出和激光通過分光鏡後送入光電池放大電壓量和單片機通過計算使到誤差修正量達到最小，從而使光功率控制達到最佳效果的變化關系。 -
However flux leakage is really exist, calculation through formular analytic method has more error, so electromagnetic field analysis is made by using finite element method ( fem ) in ansys7. 1 / multiphysics and ansys / emag programs. typical quantities of interest in a magnetic analysis are available such as magnetic flux density, magnetic field intensity, magnetic forces, power loss and flux leakage in the system of magnetic levitation. then gain the current in the coil which control levitation gap when the stage is stable
由於存在漏磁，用公式的解析法計算有很大的誤差，因此本文採用有限元法（ fem ）來計算磁懸浮系統磁場分佈，從而計算磁力，通過用ansys7 . 1軟體進行有限元電磁場分析計算，得到平臺穩定懸浮時電磁線圈所需電流、懸浮氣隙等控制參數，由於設計的磁懸浮系統為非軸對稱結構，採用2d磁場分析有一定的誤差，而採用3d電磁場分析更接近實際。 -
Secondly, we present a new transmit diversity scheme with adaptive power allocation in which two antennas are employed at the transmitter, and the effect of the channel estimation error on its performance is also analyzed. theoretical analysis and simulation results indicate that the new scheme has a considerable performance gain and is robust to the estimate bias of channel fading parameters
其次，提出了在雙天線發送分集中對不同天線的發送功率進行優化分配的技術方案，並分析了通道估計誤差對其性能的影響，理論分析和模擬結果表明：在alamouti雙天線發送分集中採用自適應優化功率分配，不僅提高了系統的性能，還可以提高其對通道估計誤差的魯棒性。 -
The performance of tcm over awgn channel is perfect but it is bad over fading channel. there is an effective method to solve this problem that combines interleave technique with coded modulation to get the gain of performance over fading channel. this paper is about a new coded modulation technique ? ? bicm ( bit interleaved coded modulation ) and bicm _ id ( bicm with iterative decoding ), and their performance of bit error rate in different conditions
本文研究的就是一種將交織技術與編碼調制相結合的新的編碼調制方式? ?比特交織編碼調制（ bicm ， bitinterleavedcodedmodulation ） ，和引入迭代反饋譯碼的比特交織編碼調制（ bicm _ id ， bicmwithiterativedecoding ） ，及它們在不同通道條件下的性能。
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