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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(biāo)簽: direct-sequence direct-sequenc receiver Simulink

    上傳時(shí)間: 2014-01-05

    上傳用戶:lunshaomo

  • Rake receiver of CDMA

    Rake receiver of CDMA

    標(biāo)簽: receiver Rake CDMA of

    上傳時(shí)間: 2015-08-21

    上傳用戶:agent

  • rake接收機(jī)(Rake-receiver)

    rake接收機(jī)(Rake-receiver)

    標(biāo)簽: Rake-receiver rake 接收機(jī)

    上傳時(shí)間: 2013-12-04

    上傳用戶:sz_hjbf

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

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

    標(biāo)簽: receiver Simulink DS-CDMA systems

    上傳時(shí)間: 2016-07-04

    上傳用戶:aa54

  • Simulation DS-SS Rake Receiver

    Simulation DS-SS Rake Receiver

    標(biāo)簽: Simulation Receiver DS-SS Rake

    上傳時(shí)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(biāo)簽: receiver systems DS-SS RAKE

    上傳時(shí)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(biāo)簽: simulation baseband channel packet

    上傳時(shí)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(biāo)簽: simulation baseband channel packet

    上傳時(shí)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(biāo)簽: simulation baseband channel packet

    上傳時(shí)間: 2014-12-20

    上傳用戶:ukuk

  • 多載波擴(kuò)頻通信的Rake接收機(jī)理論研究及FPGA實(shí)現(xiàn).rar

    由于移動(dòng)環(huán)境的復(fù)雜性,無(wú)線信號(hào)在發(fā)送傳輸和接收過(guò)程中有很明顯的衰落現(xiàn)象,特別是在高頻無(wú)線通信中,多徑衰落或頻率選擇性衰落對(duì)無(wú)線信號(hào)的干擾最為嚴(yán)重。通過(guò)分集接收技術(shù),Rake接收機(jī)在CDMA移動(dòng)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(hào)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(lái)的寬帶無(wú)線通信系統(tǒng)最有希望的候選。 @@ 本文研究了一種多載波擴(kuò)頻通信系統(tǒng),介紹了其Rake接收機(jī)工作原理和設(shè)計(jì)思想,進(jìn)行了理論仿真并用FPGA予以實(shí)現(xiàn)。 @@ 本文首先介紹了移動(dòng)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(dòng)通信的主要衰落以及Rake接收機(jī)基本原理及其作用。多徑信號(hào)的每路信號(hào)都可能含有可以利用的信息,Rake接收機(jī)就是通過(guò)多個(gè)相關(guān)接收器接收多徑信號(hào)中各路信號(hào),通過(guò)信道估計(jì)和信道補(bǔ)償消去信道因子的附加相位,并把他們合并在一起,以此來(lái)改善信號(hào)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(kuò)頻通信系統(tǒng)的實(shí)現(xiàn)方案,并詳細(xì)介紹了其Rake接收機(jī)實(shí)現(xiàn)原理,給出了最大比合并時(shí)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(jī)的FPGA硬件實(shí)現(xiàn)設(shè)計(jì)方案及其系統(tǒng) 測(cè)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(jī)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(shí)現(xiàn)相對(duì)簡(jiǎn)單。最終Rake接收機(jī)的FPGA實(shí)現(xiàn)結(jié)果同理論仿真一致,時(shí)序通過(guò),資源耗費(fèi)不大,具有較大的實(shí)用價(jià)值。 @@關(guān)鍵詞:多載波擴(kuò)頻通信,CDMA,Rake接收機(jī),F(xiàn)PGA

    標(biāo)簽: Rake FPGA 多載波

    上傳時(shí)間: 2013-07-25

    上傳用戶:axxsa

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