siso 中文意思是什麼
siso
解釋
單發單收-
6. the basic principle of turbo equalization is discussed and the siso equalization algorithms based on a posteriori probability and interference cancellation are derived. at last, the simulation results are provided
6 .論述了turbo均衡的基本原理，推導了基於后驗概率和干擾消除的5150均衡演算法，給出了性能模擬結果。 -
With estimating the numerator of the new simo model transfer function first and the common denominator later, the parameter estimation of the original siso model is obtained
再估計出這個新的單輸入多輸出系統的傳遞函數，最後得到原單輸入單輸出系統的模型參數。 -
The application of the control algorithm to the siso system, the unstable process and the mimo system whose controlled object is square matrix has been affirmed fully
閉環增益成形演算法在siso系統、非穩定過程和被控對象為方陣的mimo系統中的應用已被充分肯定。 -
Low density parity - check ( ldpc ) codes were first discovered by gallager in the early 1960s and recently have been rediscovered and generalized. this class of codes decoded with soft - in soft - out ( siso ) iterative decoding performs amazingly well
低密度奇偶校驗碼（ ldpc ）碼是由gallager在1962年首先提出的一種糾錯碼，在沉寂了多年之後，最近又重新成為通信技術研究的熱點。 -
5. a multivariable process identification based on asymptotic black - box theory is studied. firstly, a high - order mimo arx model and its frequency error bound is estimated from identification data and low - order siso models is obtained from high - order mimo arx model
作者對一種基於漸近黑箱理論的多變量過程辨識方法進行了研究：首先用高階arx模型估計模型參數，並給出高階模型的頻域均方誤差；然後，對高階arx模型進行降階處理。 -
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。 -
By over - sampling the single input single output ( siso ) system, the system is transformed into a single input multiple output ( simo ) one with common poles
通過過采樣控制系統的輸出信號，將原單輸入單輸出系統轉換成為一個新的與原系統具有相同輸出極點的單輸入多輸出系統。 -
In ship steering controller design, the nonlinear ship model should be written in siso strict feedback form. we start the recursive design with the system first state variable and continue with the second one. by introducing a change of coordinates, we choose lyapunov functions to stabilize the system and obtain the control law
在船舶航向控制方面，考慮船舶的穩態回轉非線性，應用backstepping方法設計：首先把系統化成單入單出的嚴格反饋控制形式（呈下三角結構） ，假設系統后一個狀態變量是前一個狀態變量的虛擬控制，通過適當的變量代換，在每一步構造李亞普諾夫函數，使前一子系統在虛擬控制下漸近穩定，逐步遞推出控制器控制規律，使整個系統在平衡點滿足一致漸近穩定性。 -
Abstract : this paper developed time domain integral constraints on error response for siso feedback control systems caused by nominal plant ' s near cancellation of stable pole - zero near the j - axis. these integral constraints should be satisfied by any feedback control systems. these integral constraints give new insight into the inherent trade - offs. it will result in the settling time longer or the infinite norm of the error response larger when there are near cancellations of stable pole - zero near the j - axis. hence, when feedback control systems are designed, it is necessary to avoid the compensator ' s poles and zeros nearly cancelling the nominal ' s zeros and poles ( even if these poles and zeros are stable )
文摘:導出了單輸入單輸出反饋控制系統誤差響應基於名義系統穩定的零、極點近似相消的時間域積分約束，此積分約束是任何反饋控制系統均應滿足的.這一約束給出了單輸入單輸出反饋系統固有折中的新的觀點.名義系統穩定的零、極點近似相消的存在導致反饋控制系統的調節時間延長或者誤差響應的無窮范數變大.因此，在反饋控制系統設計中，盡量避免補償器的零、極點與名義系統的極、零點近似相消（即使這些零、極點是穩定的） -
To reappear stochastic waveform on esvrst in time field, the minimum variance implicit self - tuning regulators of siso and mimo systems are deduced based on carma models in this paper. the robustness of the regulator being used to control esvrst is validated good
本文推導了在時域內對電液伺服道路模擬試驗臺進行隨機波形再現控制時，基於carma模型的，單輸入單輸出系統和多輸入多輸出系統的，隱式最小方差自校正調節器。 -
This paper puts forward several views as the follows. for the siso test task, the esvrst ( electro - hydraulic servo vehicle road simulation test - bed ) system may be describe ^ by siso carma. for the multi - output test task, such as to reappear multi - channel waveform of acceleration, the inputs and outputs is coupled, the esvrst system must be describe ^ by mimo carma
針對上述問題本文提出了對于電液伺服汽車道路模擬試驗臺單輸入單輸出系統的試驗可以用單輸入單輸出carma模型描述；對于電液伺服汽車道路模擬試驗系統多點輸出的加速度隨機波形再現試驗以及其它多輸入多輸出問題，因為存在輸入輸出量之間耦合關系，所以必須用多輸入多輸出carma模型描述。 -
The regulative method is the key to optimizing. for the siso inertial plants, a presented method based on the analysis of the phase plane is applied in this paper
調整方法是尋優過程的關鍵，對于表現為較大慣性的siso對象，本文提出一種基於相平面分析的方法。 -
Single input single output control system ; siso control system
單輸入單輸出控制系統 -
Based on the research of siso case, we employ the method of feedforward compensation to decouple multiple input and multiple output ( mimo ) plant. it is the key point to design h2 - optimization compensator with the approach of l2 - norm optimization so as to apply directly the result of siso case to the decoupled system
在對單輸入單輸出的對象研究基礎之上，作者採用相對增益法和前饋補償方法對多輸入多輸出（ mimo ）的對象進行前饋補償解耦，在這一過程中關鍵就是引入頻域l _ 2范數優化的方法對補償器進行設計使之具有h _ 2優化的特點。 -
This class of codes decoded with soft - in soft - out ( siso ) iterative decoding performs amazingly well. since their rediscovery, design, construction, decoding, analysis and applications of ldpc coded have become focal points of research
Ldpc碼是一種具有稀疏校驗矩陣的線性分組碼，研究結果表明，採用迭代的概率譯碼演算法， ldpc碼可以達到接近香農極限的性能。 -
The simulation results based on siso and mimo systems show that the proposed scheme could effectively eliminate the time - variant fading characteristics of wireless channel and under an acceptable demand of ber, the frequency efficiency is enhanced greatly and besides, dynamic encoding is implemented with low complexity and high efficiency
通過在單天線和多天線系統中的模擬，表明該方案可以有效的克服無線通道的時變衰落特性，在滿足誤碼率性能要求的基礎上可以提高系統頻譜利用率，且實現復雜度低。 -
Turbo codes were presented by c. berrou in international conference on communications in 1993. they hang convolutional code and random interleaver together to realize the idea of random coding, and adopt soft input / soft output ( siso ) iterated decoding to approach maximum likelihood decoding ( mld ). turbo codes come closer to approaching shannon ' s limit
Turbo碼，由c . berrou等在icc 』 93會議上提出，它巧妙地將卷積碼和隨機交織器結合在一起，實現了隨機編碼的思想，同時，採用軟輸入軟輸出迭代譯碼來逼近最大似然譯碼，具有近shannon限的性能。 -
In detail, they are bit - interleaved coded modulation ( with iterative decoding ), low - density parity - check codes and stf technology. by the performance analysis of bicm ( - id ), which can make code and modulation optimal separately, and achieve maximum possible coding diversity as well as modulation gain, guidelines for its design and an easy algorithm for siso are proposed. design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated
具體的講，就是討論了基於比特交織的編碼調制技術，並給出了映射方式的設計準則以及核心模塊siso的一種簡單的f - map演算法；研究了編碼最小漢明距隨碼長線性增加的ldpc碼的幾個方面的問題，包括接近香農限碼子集的度分佈對的設計、有效編碼器的實現和各種譯碼演算法的優缺點，並對基於ldpc碼的bicm應用於ofdm傳輸系統中的性能進行了模擬。 -
4. the predictive inferential control of siso and mimo cascade systems is studied. an algorithm is developed, which verifies the estimations for unmeasurable primary outputs with errors between real - measured values and predicted values of secondary variables
利用可測變量的實測值與預測值的差值對不可測變量估計值進行修正，構成不可測變量的預測推斷控制。 -
The geometries and the harmonic vibrational frequencies for siso + and geso + have been predicted at density functional theory levels with a 6 - 311 - t - g * basis set
在各種理論方法的基礎上，計算了siso ~ +和geso ~ +的各種可能的穩定構型。
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