frequency allocation 中文意思是什麼

frequency allocation 解釋
頻率分配
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • allocation : n. 1. （原料等的）分配，配給。2. 配給物，配給量。3. 定位置，部署。4. 【會】（經費、收入等的）分配法。
  1. Algorithm analysis and simulation for frequency allocation based on graph theory

    基於圖論的頻率規劃演算法分析與模擬
  2. Frequency allocation of catv

    有線電視頻率配置
  3. 3. a raytrace model of both co - axis and non - axis beam propagations for high - power solid - state laser systems has been set up and simulations on shots have been conducted to get the spot distribution at target point. according to the requirement of system design and theory of mathematic statistics, the dispersion circle and frequency distribution, which optimize the stability allocation of optical components, have been presented

    3 、建立了共軸與非共軸相結合的光線追跡模型，通過對大型固體激光裝置打靶的模擬模擬，獲取光束在靶點處的彈著點分佈，依據總體設計要求，運用數理統計原理，採用彌散圓和頻率分佈方法對彈著點分佈進行分析，優化光學元件穩定性分配指標。
  4. This refinement may mean a reduction in the frequency of issues open to retail investors compared with the experimental period, but it will enable the allocation of a larger portion of the selected issues for allotment to them. it will also facilitate more focused retail marketing for the relevant issues

    透過此項革新，開放予一般投資者參與的期數可能較試驗期少，但卻可使他們獲配售所選債券期數中的較大比重，亦可配合為有關期數的外匯基金債券進行更有效的市場推廣。
  5. Frequency - domain equalization. at the same time discusses some key problems in ofdm : high ratio of peak - to - average power of output signals, problem of synchronization, channel estimation, adaptive bit, power and subcarrier allocation. emphasize on channel estimation, and present a new algorithm which can filtering more interpolation errors and noise. for the sake of improve the performance of resist narrowband noise and make efficient use of the spectrum apply malvar wavelet division

    同時就ofdm系統中的一些關鍵問題如峰值平均功率比（ papr ）太高，同步問題，通道估計，通道、比特與功率必須動態分配進行了研究，著重研究了通道估計問題並提出一種改進的方法，能濾除更多的噪聲分量和插值誤差，提高系統的性能；為了提高抗窄帶噪聲的性能和提高通道利用率，用malvar小波變換實現了不等帶寬分配。
  6. Cdma ( code division multiple access ) is a promising technology for future mobile communication system because of its several features with which other multiple access technology can not compare : higher efficiency of frequency allocation, robust anti - multipath effect, macro diversity, mitigating interference, soft capacity, low power, soft handoff, simple frequency design, easy access, and so on

    碼分多址接入（ cdma : codedivisionmultipleaccess ）方式以頻譜利用率高、抗多徑、抗干擾、軟容量、低功率、軟切換、宏分集、頻率規劃簡單、用戶接入方便等其它多址技術不可比擬的優越性被認為是未來移動通信系統的理想接入技術之一。
  7. Cdma ( code division multiple access ) is one of the promising technology for futufe mobile conununication system because of its several featurs with which other multiple access technology can not compare : higher efficiency of frequency allocation, robust ani - multipath effect, macro diversity mitigating intefference, soft capacity low powet, soft handoff simple frequency design, easy access, and so on

    碼分多址接入（ cdma ： codedivisionmultipleaccess ）方式以頻譜利用率高、抗多經、抗干擾、軟容量、低功率、軟切換、宏分集、頻率規劃簡單以及用戶接入方便等其它多址技術不可比擬的優越性被認為是未來移動通信系統的理想接入技術之一。
  8. The defect of thes powe control and allocation method is without consideraon of the induence of all of the other users on the desired user and the influence of time - varying channel, so it can not maximize the capacity, and deduces the frequency waste

    這種功率分配與控制方法的缺點是沒有考慮到系統內其他用戶對期望用戶的影響以及通道時變特性的影響，不能最大化系統的容量，造成了頻譜資源的浪費。
  9. The application of adaptive allocation techniques to ofdm ( orthogonal frequency division multiplexing ) systems optimizes the use of system power

    摘要自適應分配技術的應用能優化多用戶正交頻分復用系統功率的使用。
  10. The effects of different frequency mowing on energy fixation and allocation of leymus chinensis steppe community in xilinguole, nei monggol

    不同頻次刈割對內蒙古羊草草原群落能量固定與分配規律的影響
  11. In the gsm 1800 system, the 4 x 3 frequency allocation mode can meet the need, while in the gsm 900 network, the usual practice is that for the bcch carriers, the 4 x 3 reuse mode is used and for other channels, the 3 x 3 frequency hopping reuse mode is used

    在gsm1800的系統中， 4 3的頻率分配方式能滿足需要，而在gsm900中，通常bcch載頻採用4 3復用方式，其它通道採用3 3跳頻復用方式。
  12. Without much theoretical deduction in this dissertation, we focus mainly on the several characteristics of wavelet, such as the localization in both the spatial and the frequency domain derived from the compact support in the two domains ; the rnultiresolution representation property ; and the octave divided frequency property, etc. after a brief overview of the principles and methods of image compression, video coding algorithms are introduced including 3 - d wavelet video coding and 2 - d wavelet video coding. based on the above, the research of this dissertation consists of three aspect : firstly, the 3d - spiht algorithm is modified which optimizes bit allocation

    具體說，本論文包括以下內容：首先，本文分析介紹了小波理論，文中沒有過多的理論推導，而是從小波具有的一些特性，如時頻局部性、多解析度分解特性和倍頻程頻帶分解特性入手，力求對小波變換有一個宏觀的了解。其次，介紹了基於小波的圖像編碼的原理和常用的編碼方法。最後，介紹了基於小波的視頻編碼的方法，一種是基於3 ? d小波視頻編碼，另一種是基於2 ? d的小波視頻編碼方法。
  13. A joint frequency and space diversity scheme is presented which can reduce computational cost. 3. an adaptive bit, power and subcarrier allocation is presented

    分集技術，重點介紹了一種空間頻率聯合分集接收技術，它能夠大幅度降低計算量； 3
  14. This article proposes the adaptive algorithm based on equal snr signal noise ratio, and applies it in adaptive ofdm system. in frequency selective fading channel, compared with the traditional ofdm system based on equal power allocation, the system outperforms in ber bit error ratio performance

    提出了一種基於最小平均誤碼率的自適應預處理演算法，並將該演算法應用於自適應ofdm系統，在頻率選擇性衰落通道條件下，與等功率分配的ofdm系統相比，誤比特性能有了很大程度的提高。
  15. Dynamic frequency allocation

    動態頻率分配
  16. Cdma is a promising technology for future mobile communication system because of its several features with which other multiple access technology can not compare : higher efficiency of frequency allocation, robust anti - multipath effect, macro diversity, mitigating interference, soft capacity, low power, soft handoff, simple frequency design, easy access and so on

    方案二從獨立分量分析與傳統盲多用戶檢測器的結合性上考慮，即用一種子空間mmse檢測演算法的輸出來初始化ica演算法的權向量，進而利用修正fastica分離演算法對其進行迭代直至滿足要求。
  17. In this thesis, we address this challenge in detail and design solutions to it and evaluate the performance of them by simulation. based on the traditional structure of cellular network and methods of radio resource allocation, we propose a novel synchronous single frequency cellular network ( sfcn ) system, which is more proper for 4g

    本文圍繞第四代移動通信（ 4g ）及其核心技術ofdm （正交頻分復用）的要求和特點，在傳統的蜂窩系統結構和無線資源管理方法的基礎上，獨創地提出一種適用於4g的新型單頻蜂窩系統（ sfcn ， singlefrequencynetworkcellularnetwork ） 。
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