回溯（b a c k t r a c k i n g）是一種系統(tǒng)地搜索問題解答的方法。為了實(shí)現(xiàn)回溯，首先需要為問題定義一個(gè)解空間（ solution space），這個(gè)空間必須至少包含問題的一個(gè)解（可能是最優(yōu)的）。在迷宮老鼠問題中，我們可以定義一個(gè)包含從入口到出口的所有路徑的解空間；在具有n 個(gè)對象的0 / 1背包問題中（見1 . 4節(jié)和2 . 2節(jié)），解空間的一個(gè)合理選擇是2n 個(gè)長度為n 的0 / 1向量的集合，這個(gè)集合表示了將0或1分配給x的所有可能方法。當(dāng)n= 3時(shí)，解空間為{ ( 0 , 0 , 0 )，( 0 , 1 , 0 )，( 0 , 0 , 1 )，( 1 , 0 , 0 )，( 0 , 1 , 1 )，( 1 , 0 , 1 )，( 1 , 1 , 0 )，( 1 , 1 , 1 ) }。
標(biāo)簽： 搜索
上傳時(shí)間： 2014-01-17
上傳用戶：jhksyghr
This m-file simulates MPSK (theoretical and simulated) with Gray coding This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).
標(biāo)簽： simulates m-file This MPSK
上傳時(shí)間： 2014-01-11
上傳用戶：372825274
LCD DRIVER AF-128 B
上傳時(shí)間： 2014-12-22
上傳用戶：851197153
fbkldfmlb n/ovk,e vml bhdsrb mor brb n/sZPer b vk,epabho,l rnopazbhlrepofrt,epsho
標(biāo)簽： rnopazbhlrepofrt fbkldfmlb bhdsrb epabho
上傳時(shí)間： 2014-01-25
上傳用戶：ANRAN
If we have two individually sorted vectors "a" and "b" but they are not sorted with respect to each other and we want to merge them into vector "c" such that "c" is also a sorted vector. Then c=mergesorted(a,b) can be used.
標(biāo)簽： sorted individually respect vectors
上傳時(shí)間： 2015-09-23
上傳用戶：comua
* "Copyright (c) 2006 Robert B. Reese ("AUTHOR")" * All rights reserved. * (R. Reese, reese@ece.msstate.edu, Mississippi State University) * IN NO EVENT SHALL THE "AUTHOR" BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE "AUTHOR" * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
標(biāo)簽： Reese B. R. Copyright
上傳時(shí)間： 2015-09-24
上傳用戶：mpquest
This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) communication system. The receiver uses a correlator(mixer-integrator[LPF]) configuration with BER measurements comparing measured and theoretical results. The bandpass and low pass used in the receiver are constructed using z transforms.
標(biāo)簽： keyed shift amplitude analyzes
上傳時(shí)間： 2015-09-26
上傳用戶：liuchee
A simple m-file to compute the experiemntal BER of coded BPSK
標(biāo)簽： experiemntal compute simple m-file
上傳時(shí)間： 2015-09-26
上傳用戶：stella2015
EIA（ELECTRONIC INDUSTRIES ALLIANCE）標(biāo)準(zhǔn)文檔EIA-CEA-861-B，A DTV Profile for Uncompressed High Speed Digital Interfaces。
標(biāo)簽： ELECTRONIC INDUSTRIES ALLIANCE EIA-CEA
上傳時(shí)間： 2015-09-27
上傳用戶：hphh
區(qū)域增長的算法實(shí)現(xiàn): 1)根據(jù)圖像的不同應(yīng)用選擇一個(gè)或一組種 子,它或者是最亮或最暗的點(diǎn),或者是位 于點(diǎn)簇中心的點(diǎn) 2...通過像素集合的區(qū)域增長 算法實(shí)現(xiàn): 區(qū)域A 區(qū)域B 種子像素增長.3)增長的規(guī)則 4) 結(jié)束條件.
上傳時(shí)間： 2015-09-30
上傳用戶：wcl168881111111
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