稀疏天線陣 的英文怎麼說

中文拼音 [xīshūtiānxiànzhèn]
稀疏天線陣 英文
thinned array
  • 稀 : Ⅰ形容詞1 （事物出現得少） rare; scarce; uncommon 2 （事物之間距離遠; 空隙大） sparse; scattered 3...
  • 疏 : Ⅰ動詞1 （疏通） dredge （a river etc ）2 （疏忽） neglect 3 （分散; 使從密變稀） disperse; scatte...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 陣 : Ⅰ名詞1 （作戰隊伍的行列或組合方式） battle array [formation]: 布陣 deploy the troops in battle fo...
  • 稀疏 : few and scattered; few and far between; thin; sparse
  1. Then, pattern synthesis for sparse array antenna using genetic algorithms is researched. at last, we researched on conformal patch on the surface of cylinder and the effect of conformal antenna platform on the radiations of patches in different positions. how to get a good feeding for conformal array antenna by genetic algorithms is presented in the end

    文中介紹了遺傳演算法在綜合低副瓣陣列中的應用;採用遺傳演算法給陣列天線的方向圖賦形，其結果優于同種條件下用woodward法得到的結果;同時，考察了遺傳演算法的穩定性;分析討論了遺傳演算法在綜合稀疏相控陣方向圖綜合中的應用。
  2. As a crucial consideration of the synthetic aperture radiometer system design, the choice of spatial frequency samplings is always the issue among people ' s discussion

    如何有效的稀疏天線陣，從而使天線單元的排布最優是綜合孔徑輻射計設計中需要首先解決的問題。
  3. This paper studies the least redundant solutions of two - dimensional array system by using the simulated annealing algorithm. two ideal thinning solutions for the two - dimensional circle array were discussed intensively in this paper. one solution uses half - circle configuration with very much reduced number of elements and taking an image by rotating the array ; the other selects element positions around the full circle to provide a roughly uniform coverage in the spatial frequency domain

    在一維天線陣設計的基礎上，本文利用模擬退火演算法給出了兩種最小冗餘二維圓環天線陣的結構設計方案，一種方案利用天線旋轉，在半圓周內稀疏天線；另一種方案通過將空間頻率采樣點的均勻分佈作為優化的約束條件，在全圓周上使天線單元分佈達到最優。
  4. In next mobile communication system to suffice more and more high - speed data service and demand of qos ( quality of service ) many new wireless link layer transport technologies are going to be used such as mimo ( multiple input multiple output ), ofdm ( orthogonal frequency division multiplexing ), channel coding and acm ( adaptive coding modulation ) etc. low density parity check ( ldpc ) codes were first discovered in 1960 ’ s which belong to linear block codes with their parity matrix being sparse

    下一代移動通信系統為了滿足移動用戶對高速、寬帶數據傳輸業務不斷增長和更高服務質量的要求，採用了許多新的無線鏈路傳輸技術，包括多天線發射和接收技術、正交頻分復用技術、通道糾錯編碼技術和自適應編碼調制技術等。上世紀60年代提出的低密度校驗碼，是一種校驗矩陣為稀疏矩陣的線性分組碼。
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