A novel met hod t o p artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he comp en2 sation cur rent int o t he p assive loop f ilte r during t he delay time of t he p hase f requency detect or ( PFD) , a maximum reduction of t he p hase noise by about 16dB can be achieved. Comp a red t o ot he r compensation met hods , t he tech2 nique p rop osed he re is relatively simple and easy t o implement . Key building blocks f or realizing t he noise cancel2 lation , including t he delay va riable PFD and comp ensation cur rent source , a re sp ecially designed. Bot h t he behavior level and circuit level simulation results a re p resented.
標(biāo)簽： sigma2delta compensate injecting artially
上傳時間： 2013-12-18
上傳用戶：qlpqlq
一個基于GTK+的單詞數(shù)值計算器，1、 按照規(guī)則計算單詞的值，如果 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 26個字母（全部用大寫）的值分別為 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26，如： WINJACK這個單詞的值就為：W+I+N+J+A+C+K=23+9+14+1+3+11=71％ HARDWORK=H+A+R+D+W+O+R+D=8+1+18+4+23+15+18+11=98％ LOVE=L+O+V+E=12+15+22+5=54％ LUCK=L+U+C+K=12+21+3+11=47％ ATTITUDE= A+T+T+I+T+U+D+E=1+20+20+9+20+24+4+5=100％ 2、對程序的界面布局參考如下圖所示，在第一個單行文本框輸入一個單詞，點擊“計算”按鈕，按照以上算法計算出該單詞的值。 3、如果在最下面的單行文本框輸入一個文件路徑，此文件每行記錄一個單詞，那么經(jīng)過程序計算出各個單詞的值，并把結(jié)果輸出到當(dāng)前目錄下result.txt文件中。如果文件不存在，應(yīng)該提示錯誤。
上傳時間： 2014-01-11
上傳用戶：康郎
專家點評: Y P7 `. @ {$ r％ pa.功能很強(qiáng)大，可以看出花了很多心血在算法上，非常好。算法上還有一點瑕疵，例如在刪除一個員工的同時沒有辦法自動建立其他員工的上下級關(guān)系，必須刪除全部下級員工，不是非常合理。此外，界面設(shè)計過于簡單，應(yīng)該加強(qiáng). " W" R+ b* g$ a$ Sb.程序運(yùn)用了自己的算法來提高Tree控件顯示的速度和資源分配，這個非常值得肯定和鼓勵。* C. c4 D0 e9 ` J$ w# U c.基本實現(xiàn)所有規(guī)定的功能，在所有參賽者中唯一熟 : O) l- F6 F9 f) S7 Q. l練使用面向?qū)ο笤O(shè)計方式開發(fā)程序的工程師，很不錯！程序體現(xiàn)了作者非常扎實的數(shù)據(jù)結(jié)構(gòu)功底，值得大家學(xué)習(xí)。工程管理也做得非常好，體現(xiàn)了作者在軟件工程方面也有很深入的研究，該代碼是很好的學(xué)習(xí)范例。 ％ G* H$ ~3 W1 ]. e! id.算法的創(chuàng)新是獨(dú)特之處(hashtable算法建立),可見作者在數(shù)據(jù)結(jié)構(gòu)方面的熟練掌握.此程序是很多專家會員學(xué)習(xí)典范.
上傳時間： 2017-01-19
上傳用戶：奇奇奔奔
The combinatorial core of the OVSF code assignment problem that arises in UMTS is to assign some nodes of a complete binary tree of height h (the code tree) to n simultaneous connections, such that no two assigned nodes (codes) are on the same root-to-leaf path. Each connection requires a code on a specified level. The code can change over time as long as it is still on the same level. We consider the one-step code assignment problem: Given an assignment, move the minimum number of codes to serve a new request. Minn and Siu proposed the so-called DCAalgorithm to solve the problem optimally. We show that DCA does not always return an optimal solution, and that the problem is NP-hard. We give an exact nO(h)-time algorithm, and a polynomial time greedy algorithm that achieves approximation ratio Θ(h). Finally, we consider the online code assignment problem for which we derive several results
標(biāo)簽： combinatorial assignment problem arises
上傳時間： 2014-01-19
上傳用戶：BIBI
A heap is a binary tree satisfying the following conditions: This tree is completely balanced. If the height of this binary tree is h, then leaves can be at level h or level h-1. All leaves at level h are as far to the left as possible. The data associated with all descendants of a node are smaller than the datum associated with this node.
標(biāo)簽： tree conditions completely satisfying
上傳時間： 2014-01-01
上傳用戶：gundan
復(fù)接入，B/W雙用戶使用直接擴(kuò)頻序列 ％ >>>multiple access b/w 2 users using DS CDMA ％ >>>format is : cdmamodem(user1,user2,snr_in_dbs) ％ >>>user1 and user2 are vectors and they should be of equal length ％ >>>e.g. user1=[1 0 1 0 1 0 1] , user2=[1 1 0 0 0 1 1],snr_in_dbs=-50 ％ >>>or snr_in_dbs=50 just any number wud do ％ Waqas Mansoor ％ NUST , Pakistan
標(biāo)簽：
上傳時間： 2014-11-22
上傳用戶：zl5712176
數(shù)據(jù)異常處理。The main source file is "dabort.s": with suitable -PreDefines or a corresponding "options-setting" file, it assembles to the data abort veneer. This is described in detail in the documentation. The "dabort.h" file contains definitions of some constants used in the data abort veneer s interface to the rest of the system - again, this is described in the documentation. The "option.s" file is an example "options-setting" file.
標(biāo)簽： corresponding PreDefines options-s suitable
上傳時間： 2013-12-03
上傳用戶：星仔
"Readers can pick up this book and become familiar with C++ in a short time. Stan has taken a very broad and complicated topic and reduced it to the essentials that budding C++ programmers need to know to write real programs. His case study is effective and provides a familiar thread throughout the book.
標(biāo)簽： familiar Readers become short
上傳時間： 2014-01-19
上傳用戶：luke5347
【問題描述】 設(shè)計一個利用哈夫曼算法的編碼和譯碼系統(tǒng)，重復(fù)地顯示并處理以下項目，直到選擇退出為止。 【基本要求】 (1)初始化：鍵盤輸入字符集大小n、n個字符和n個權(quán)值，建立哈夫曼樹； (2)編碼：利用建好的哈夫曼樹生成哈夫曼編碼； (3)輸出編碼； (4)設(shè)字符集及頻度如下表： 字符：A B C D E F 頻度：4 9 23 2 17 15 字符：G H I J K 頻度：1 2 3 3 4
上傳時間： 2017-03-07
上傳用戶：qwe1234
We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
標(biāo)簽： effectiveness analytically numerically cloaking
上傳時間： 2017-03-30
上傳用戶：zxc23456789
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