fixed-step model 中文意思是什麼

fixed-step model 解釋
定步長模型
  • fixed : adj. 1. 固定的；確定的，不變的，固執的。2. 【化學】凝固的，不易揮發的。3. 〈美口〉（在經濟上）處境…的。4. 〈美俚〉（比賽等）通過作弊預先安排好結果的。
  • step : vi （ pp ）1 走；跨步。2 踩，踏上 （on）。3 跳舞，輕快地走，合著步調走。4 跨入，踏進。5 走上。vt ...
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. At present, the investigation of trading model in the native still rest on realising the traditional trading model using information skills, little work has been done in lucubrating the business model and exercising successfully. although foreign investigation has gained some successes and brought forward some typical trading models such as fixed price selling, biliteral multi - step negotiation and all kinds of auction, there still exists some problem such as information overloading or resource mazing in these models, which aggravate users " burden. how to realise an efficient, intelligent trading model based on the multi - agent technique has become an important task for the research of electronic commerce

    目前，國內對電子商務的研究還停留在以信息化實現傳統交易模型的層次上，真正深入研究業務模型並成功應用的還很少?國外研究雖然取得一定突破，並提出了幾種典型的市場交易模型如:定價交易，雙邊多步協商交易，以及各種形式的拍賣拍買交易等?但這些模型大都存在信息過載或資源迷向的問題，增加了交易主體的負擔，如何應用多代理技術實現一種高效
  2. ( 2 ) it explains the basic concept of time series, some kinds of the common time series models and the development characteristics of time series in detail. it analyses how to judge the model from the self - related function and the deviation related function. determining a better standard to set up models from the comparison of some kinds of fixed step time series standards, then predicts utilizing the counter function

    （ 2 ）詳細闡明了時間序列的基本思想、幾種常見的時間序列模型以及時間序列的動態特徵，分析了如何利用自相關函數和偏相關函數來對模型進行判定，通過對時間序列的幾種定階準則的比較，確定一種好的定階準則來建立模型，從而可以利用逆函數法進行預報。
  3. The main works of the dissertation can be summarized as follows : 1. by exploring the model of ds - cdma systems, the performances of the decorrelating multi - user detector and minimum mean square error ( mmse ) multi - user detector are studied. further, the performances of blind adaptive mud and adaptive mmse mud ( lms style ) with fixed step size and varied step size respectively are studied based on mmse linear detect algorithms

    本文主要研究次最優的線性多用戶檢測技術，工作具體如下：從ds - cdma系統模型出發，研究了解相關多用戶檢測器和mmse多用戶檢測器的性能，並以mmse線性檢測技術為基礎，研究了變步長和固定步長的lms - mmse自適應多用戶檢測器和基於最小輸出能量準則的盲自適應多用戶檢測器。
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