亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

rake-receiver

  • RAKE receiver for direct-sequence spread spectrum systems Simulink model of a simple direct-sequenc

    RAKE receiver for direct-sequence spread spectrum systems Simulink model of a simple direct-sequence spread spectrum system with RAKE reception

    標簽: direct-sequence direct-sequenc receiver Simulink

    上傳時間: 2014-01-05

    上傳用戶:lunshaomo

  • Rake receiver of CDMA

    Rake receiver of CDMA

    標簽: receiver Rake CDMA of

    上傳時間: 2015-08-21

    上傳用戶:agent

  • rake接收機(rake-receiver)

    rake接收機(rake-receiver)

    標簽: rake-receiver rake 接收機

    上傳時間: 2013-12-04

    上傳用戶:sz_hjbf

  • RAKE receiver for DS-SS systems.mdl DS-CDMA的Rake接收機的Simulink仿真文件

    RAKE receiver for DS-SS systems.mdl DS-CDMA的Rake接收機的Simulink仿真文件

    標簽: receiver Simulink DS-CDMA systems

    上傳時間: 2016-07-04

    上傳用戶:aa54

  • Simulation DS-SS Rake Receiver

    Simulation DS-SS Rake Receiver

    標簽: Simulation Receiver DS-SS Rake

    上傳時間: 2013-12-22

    上傳用戶:Breathe0125

  • RAKE receiver for DS-SS systems - rev1.0

    RAKE receiver for DS-SS systems - rev1.0

    標簽: receiver systems DS-SS RAKE

    上傳時間: 2017-05-17

    上傳用戶:lepoke

  • This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is wr

    This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). You should run "Simulation.m" function that include all modules.

    標簽: simulation baseband channel packet

    上傳時間: 2014-11-09

    上傳用戶:hwl453472107

  • his packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is w

    his packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). You should run "Simulation.m" function that include all modules.

    標簽: simulation baseband channel packet

    上傳時間: 2013-12-23

    上傳用戶:zhangyigenius

  • This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is

    This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder).

    標簽: simulation baseband channel packet

    上傳時間: 2014-12-20

    上傳用戶:ukuk

  • 多載波擴頻通信的Rake接收機理論研究及FPGA實現(xiàn).rar

    由于移動環(huán)境的復雜性,無線信號在發(fā)送傳輸和接收過程中有很明顯的衰落現(xiàn)象,特別是在高頻無線通信中,多徑衰落或頻率選擇性衰落對無線信號的干擾最為嚴重。通過分集接收技術(shù),Rake接收機在CDMA移動通信系統(tǒng)中抗多徑衰落效果尤為明顯。作為一種新穎的多址接入方式,多載波CDMA充分利用了OFDM最優(yōu)頻率利用率以及CDMA的多址和頻率分集,且系統(tǒng)容量和抗符號間干擾性能明顯優(yōu)于傳統(tǒng)的單載波CDMA。這些特性使得多載波CDMA成為未來的寬帶無線通信系統(tǒng)最有希望的候選。 @@ 本文研究了一種多載波擴頻通信系統(tǒng),介紹了其Rake接收機工作原理和設(shè)計思想,進行了理論仿真并用FPGA予以實現(xiàn)。 @@ 本文首先介紹了移動通信系統(tǒng)的發(fā)展歷史以及OFDM和CDMA技術(shù)原理,并描述了OFDM和CDMA結(jié)合的三種系統(tǒng)(MC-DS-CDMA、MT-CDMA、MC-CDMA)的原理和系統(tǒng)模型;接著,介紹了目前影響移動通信的主要衰落以及Rake接收機基本原理及其作用。多徑信號的每路信號都可能含有可以利用的信息,Rake接收機就是通過多個相關(guān)接收器接收多徑信號中各路信號,通過信道估計和信道補償消去信道因子的附加相位,并把他們合并在一起,以此來改善信號的信噪比和系統(tǒng)的可靠性;在此基礎(chǔ)上,論文提出了一種多載波擴頻通信系統(tǒng)的實現(xiàn)方案,并詳細介紹了其Rake接收機實現(xiàn)原理,給出了最大比合并時各種分徑數(shù)目下系統(tǒng)誤碼率的仿真圖;最后介紹了此方案中Rake接收機的FPGA硬件實現(xiàn)設(shè)計方案及其系統(tǒng) 測試結(jié)果。@@ 仿真結(jié)果顯示出隨著分集徑數(shù)的增加,系統(tǒng)的誤碼率顯著降低。表明Rake接收機抗多徑衰落效果顯著,且在多載波CDMA系統(tǒng)中其分集效果更好,實現(xiàn)相對簡單。最終Rake接收機的FPGA實現(xiàn)結(jié)果同理論仿真一致,時序通過,資源耗費不大,具有較大的實用價值。 @@關(guān)鍵詞:多載波擴頻通信,CDMA,Rake接收機,F(xiàn)PGA

    標簽: Rake FPGA 多載波

    上傳時間: 2013-07-25

    上傳用戶:axxsa

主站蜘蛛池模板: 尚志市| 东源县| 天柱县| 东台市| 阿巴嘎旗| 衢州市| 兴仁县| 紫阳县| 闸北区| 子长县| 周至县| 元谋县| 无棣县| 万宁市| 行唐县| 博湖县| 依兰县| 兴国县| 西丰县| 郯城县| 黄骅市| 肥城市| 宾川县| 铜陵市| 合江县| 石阡县| 河津市| 乳山市| 平湖市| 贵溪市| 山西省| 富阳市| 达日县| 吐鲁番市| 新田县| 东海县| 石泉县| 大埔区| 泌阳县| 周口市| 华池县|