- [網(wǎng)絡(luò)] 系統(tǒng)階數(shù)
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system order中文什么意思
例句與用法
- simultaneous identification of system order and parameters based on rational fraction equality
基于有理分式等價的系統(tǒng)階次和參數(shù)同時辨識 - these factors not only restrict the use of formal control algorithms but also result in large-scale vibration . all these factors make it hard to decide the system order, which brings the difficulty in implementing model-based approach
這些因素的存在，不僅限制了常規(guī)反饋擁塞控制算法的應(yīng)用，而且還導(dǎo)致網(wǎng)絡(luò)的大范圍震蕩，并且模型階次難以確定，由此給基于模型的分析方法帶來很大的困難。 - the following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel . compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over-determination of the system order; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero-forced equalizer is proposed which is more simple in its structure of algorithm; 3 time-varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time-varying channel is proposed, which also share the merits of being robust against the over-determination of the system order; model the time-varying channel using the multi-resolution decomposition wavelets, and then a blind identification method based " on the model is proposed; at last, a new model for equalization and identification of mimo system is proposed
主要工作在以下幾個方面：1、針對頻率選擇性衰落信道：結(jié)合輸入輸出空間同構(gòu)關(guān)系提出一種新的頻率選擇性信道均衡方法，與傳統(tǒng)方法相比，該方法計算量更小，收斂速度更快，性能更優(yōu)，且對系統(tǒng)階次的過確定表現(xiàn)穩(wěn)健，具有實際均衡應(yīng)用價值；2、針對時間選擇性衰落信道：提出一種基于迫零均衡的時間選擇性信道均衡方法，算法結(jié)構(gòu)簡單；3、針對時變色散信道：利用瞬態(tài)均值曲線提取信道時變信息，對之a(chǎn)r建模，利用卡爾曼濾波器跟蹤時變信道抽頭變化，可以快速跟蹤信道變化；基于輸入輸出空間之間的同構(gòu)關(guān)系以及多輸入多輸出系統(tǒng)的處理方法，提出了新的單輸入多輸出色散時變信道均衡與識別算法，同樣具有對信道階次過確定保持穩(wěn)健的優(yōu)點；結(jié)合小波多分辨率分析提出一種基于小波模型的信道盲識別算法；研究時變的多輸入多輸出系統(tǒng)的盲均衡與盲反卷積問題，給出一種時變系統(tǒng)處理模型。 - the following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel . compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over-determination of the system order; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero-forced equalizer is proposed which is more simple in its structure of algorithm; 3 time-varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time-varying channel is proposed, which also share the merits of being robust against the over-determination of the system order; model the time-varying channel using the multi-resolution decomposition wavelets, and then a blind identification method based " on the model is proposed; at last, a new model for equalization and identification of mimo system is proposed
主要工作在以下幾個方面：1、針對頻率選擇性衰落信道：結(jié)合輸入輸出空間同構(gòu)關(guān)系提出一種新的頻率選擇性信道均衡方法，與傳統(tǒng)方法相比，該方法計算量更小，收斂速度更快，性能更優(yōu)，且對系統(tǒng)階次的過確定表現(xiàn)穩(wěn)健，具有實際均衡應(yīng)用價值；2、針對時間選擇性衰落信道：提出一種基于迫零均衡的時間選擇性信道均衡方法，算法結(jié)構(gòu)簡單；3、針對時變色散信道：利用瞬態(tài)均值曲線提取信道時變信息，對之a(chǎn)r建模，利用卡爾曼濾波器跟蹤時變信道抽頭變化，可以快速跟蹤信道變化；基于輸入輸出空間之間的同構(gòu)關(guān)系以及多輸入多輸出系統(tǒng)的處理方法，提出了新的單輸入多輸出色散時變信道均衡與識別算法，同樣具有對信道階次過確定保持穩(wěn)健的優(yōu)點；結(jié)合小波多分辨率分析提出一種基于小波模型的信道盲識別算法；研究時變的多輸入多輸出系統(tǒng)的盲均衡與盲反卷積問題，給出一種時變系統(tǒng)處理模型。 - the writer put forward the e-scm systematic model of manufacturing enterprise based on j2ee technology through analyzing the system structure of software development, the paper probes into e-scm system order design and realize to manage component by applying the ejb component technology
并結(jié)合制造企業(yè)的實際情況，研究了企業(yè)e-scm系統(tǒng)框架結(jié)構(gòu)以及e-scm系統(tǒng)的目標(biāo)和功能要素。提出了基于j2ee技術(shù)的制造企業(yè)e-scm系統(tǒng)框架和結(jié)構(gòu)模型。應(yīng)用ejb組件技術(shù)，探討e-scm系統(tǒng)下訂單管理組件的設(shè)計。