In order to improve the spectral efficiency in wireless communications, multiple
antennas are employed at both transmitter and receiver sides, where the resulting
system is referred to as the multiple-input multiple-output (MIMO) system. In
MIMO systems, it is usually requiredto detect signals jointly as multiple signals are
transmitted through multiple signal paths between the transmitter and the receiver.
This joint detection becomes the MIMO detection.
資源簡(jiǎn)介:In order to improve the spectral efficiency in wireless communications, multiple antennas are employed at both transmitter and receiver sides, where the resulting system is referred to as the multiple-input multiple-output (MIMO) system. In...
上傳時(shí)間: 2020-05-27
上傳用戶:shancjb
資源簡(jiǎn)介:Optimisation of the pilot-to-data power ratio in the wireless MIMO-OFDM system with Low-Complexity MMSE channel estimation
上傳時(shí)間: 2016-12-16
上傳用戶:66666
資源簡(jiǎn)介:Low POWER MIMO Signal Processing
上傳時(shí)間: 2015-09-01
上傳用戶:jiahao131
資源簡(jiǎn)介:presentation of Low-Complexity Transformation and Quantization in H264-AVC
上傳時(shí)間: 2014-12-04
上傳用戶:ywqaxiwang
資源簡(jiǎn)介:OFDMA Resource Allocation Simulations A Low Complexity Algorithm for Proportional
上傳時(shí)間: 2014-08-11
上傳用戶:xuanjie
資源簡(jiǎn)介:I. C. Wong, Z. Shen, J. G. Andrews, and B. L. Evans, ``A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems , Proc. IEEE Int. Work. Signal Processing Systems, 針對(duì)這篇文章給出的源代碼
上傳時(shí)間: 2014-01-24
上傳用戶:zhichenglu
資源簡(jiǎn)介:Channel Estimation and Data Detection for Mobile MIMO OFDM System 一篇詳細(xì)介紹Channel Estimation and Data Detection for Mobile MIMO OFDM System的博士論文。
上傳時(shí)間: 2013-12-15
上傳用戶:gaome
資源簡(jiǎn)介:It has been suggested1 that an appropriate figure of merit for a Low probability of intercept and Detection (LPI/D) waveform is the quantity “Range x Bandwidth / Joule”. That is, the further the range, the wider the bandwidth and the le...
上傳時(shí)間: 2017-01-03
上傳用戶:kr770906
資源簡(jiǎn)介:Turbo碼是一類并行級(jí)聯(lián)的系統(tǒng)卷積碼,它是在綜合級(jí)聯(lián)碼、最大后驗(yàn)概率(MAP)譯碼、軟輸入軟輸出及迭代譯碼等理論基礎(chǔ)上的一種創(chuàng)新。Turbo碼的基本原理是通過(guò)對(duì)編碼器結(jié)構(gòu)的巧妙設(shè)計(jì),多個(gè)子碼通過(guò)交織器隔離進(jìn)行并行級(jí)聯(lián)編碼輸出,增大了碼距。譯碼器則以類似...
上傳時(shí)間: 2013-04-24
上傳用戶:shanml
資源簡(jiǎn)介:MIMO(Multiple-Input Multiple-Out-put)系統(tǒng)是一項(xiàng)運(yùn)用于802.11n的核心技術(shù)。本篇文章全面介紹了MIMO系統(tǒng)多天線技術(shù)。
上傳時(shí)間: 2013-05-23
上傳用戶:LSPSL
資源簡(jiǎn)介:? The MAX2691 Low-noise amplifier (LNA) is designed forGPS L2 applications. Designed in Maxim’s advancedSiGe process, the device achieves high gain andLow noise figure while maximizing the input-referred 1dBcompression point and the 3rd...
上傳時(shí)間: 2014-12-04
上傳用戶:zaocan888
資源簡(jiǎn)介:? A number of conventional solutions have been available forthe design of a DC/DC converter where the output voltageis within the input voltage range—a common scenarioin Li-Ion battery-powered applications—but none werevery attractive ...
上傳時(shí)間: 2013-10-21
上傳用戶:ljt101007
資源簡(jiǎn)介:? Handheld designers often grapple with ways to de-bounceand control the on/off pushbutton of portable devices.Traditional de-bounce designs use discrete logic, fl ipflops, resistors and capacitors. Other designs includean onboard microp...
上傳時(shí)間: 2013-11-18
上傳用戶:ZJX5201314
資源簡(jiǎn)介:多輸入多輸出無(wú)線傳感器之matlab應(yīng)用研究,1 MIMO-OFDM Wireless Communications with MATLAB。
上傳時(shí)間: 2013-11-05
上傳用戶:zhangfx728
資源簡(jiǎn)介:提出了一種基于C8051F320的列車安全巡檢儀的設(shè)計(jì)方案,詳細(xì)闡述了巡檢儀的各個(gè)模塊的硬、軟件設(shè)計(jì)。巡檢儀集信息采集、軸溫檢測(cè)、照明和記錄存儲(chǔ)等功能于一體,實(shí)現(xiàn)了對(duì)列車安全巡檢工作有效的監(jiān)督和科學(xué)管理。系統(tǒng)軟件采用C51編寫,對(duì)單片機(jī)進(jìn)行有效的電源管...
上傳時(shí)間: 2013-12-22
上傳用戶:落花無(wú)痕
資源簡(jiǎn)介:基于幅移鍵控技術(shù)ASK(Amplitude-Shift Keying),以C8051F340單片機(jī)作為監(jiān)測(cè)終端控制器,C8051F330D單片機(jī)作為探測(cè)節(jié)點(diǎn)控制器,采用半雙工的通信方式,通過(guò)監(jiān)控終端和探測(cè)節(jié)點(diǎn)的無(wú)線收發(fā)電路,實(shí)現(xiàn)數(shù)據(jù)的雙向無(wú)線傳輸。收發(fā)電路采用直徑為0.8 mm的漆包線自行...
上傳時(shí)間: 2013-10-19
上傳用戶:xz85592677
資源簡(jiǎn)介:The PCA9544A provides 4 interrupt inputs, one for each channeland one open drain interrupt output. When an interrupt is generated byany device, it will be detected by the PCA9544A and the interruptoutput will be driven Low. The channel need...
上傳時(shí)間: 2014-12-28
上傳用戶:潛水的三貢
資源簡(jiǎn)介:介紹了多入多出-正交頻分復(fù)用(MIMO-OFDM)系統(tǒng),并分析了其發(fā)射機(jī)的實(shí)現(xiàn)原理。充分利用Altera公司Stratix系列現(xiàn)場(chǎng)可編程門陣列(FPGA)芯片和IP(知識(shí)產(chǎn)權(quán))核,提出了一種切實(shí)可行的MIMO-OFDM基帶系統(tǒng)發(fā)射機(jī)的FPGA實(shí)現(xiàn)方法。重點(diǎn)論述了適合于FPGA實(shí)現(xiàn)的對(duì)角...
上傳時(shí)間: 2013-10-13
上傳用戶:Aeray
資源簡(jiǎn)介:為了克服已有的雙向MIMO中繼系統(tǒng)模型中預(yù)編碼技術(shù)計(jì)算量大的缺點(diǎn),提出了一種基于雙向MIMO系統(tǒng)的三時(shí)段預(yù)編碼策略,給出了該策略的模型和算法。該模型的中繼節(jié)點(diǎn)預(yù)均衡各信道狀態(tài)信息影響(CSI)后將合并信號(hào)分時(shí)段發(fā)送給不同通信節(jié)點(diǎn),簡(jiǎn)化了傳統(tǒng)中繼轉(zhuǎn)發(fā)矩...
上傳時(shí)間: 2014-12-28
上傳用戶:攏共湖塘
資源簡(jiǎn)介:在兩跳MIMO中繼通信系統(tǒng)的預(yù)編碼相關(guān)研究中,提出了一種級(jí)聯(lián)預(yù)編碼算法,該算法把兩跳系統(tǒng)的預(yù)編碼分解成兩個(gè)獨(dú)立的部分,從而把預(yù)編碼問(wèn)題轉(zhuǎn)化成為求源節(jié)點(diǎn)到中繼節(jié)點(diǎn)的預(yù)編碼過(guò)程以及中繼節(jié)點(diǎn)到目的節(jié)點(diǎn)的過(guò)程。本文使用MMSE準(zhǔn)則,在簡(jiǎn)化迭代算法復(fù)雜度的同...
上傳時(shí)間: 2013-11-12
上傳用戶:xiaoyuer
資源簡(jiǎn)介:對(duì)于獨(dú)立同分布的瑞利衰落信道,Grassmann碼本可以取得良好的系統(tǒng)性能,但是當(dāng)MIMO信道存在空間相關(guān)性時(shí),該碼本不可避免的帶來(lái)性能損失,本文針對(duì)空間相關(guān)的MIMO信道,通過(guò)用發(fā)送相關(guān)矩陣的平方根對(duì)傳統(tǒng)Grassmann碼本進(jìn)行旋轉(zhuǎn),然后再量化,得到適用于空間相...
上傳時(shí)間: 2013-10-28
上傳用戶:com1com2
資源簡(jiǎn)介:多入多出(MIMO)傳輸技術(shù)是第四代移動(dòng)通信系統(tǒng)的關(guān)鍵技術(shù)之一,而小尺寸間隔下天線陣元間的互耦效應(yīng)則是有可能影響MIMO系統(tǒng)性能的一個(gè)重要因素。文中首先研究分析了一種接近實(shí)際電波傳輸環(huán)境的、收發(fā)端皆存在散射體的雙散射MIMO信道傳輸模型,然后將天線互耦...
上傳時(shí)間: 2014-12-29
上傳用戶:leyesome
資源簡(jiǎn)介: 介紹了MIMO的基本原理,并在此基礎(chǔ)上對(duì)MIMO在不同移動(dòng)通信系統(tǒng)中的應(yīng)用進(jìn)行了闡述,最后介紹了R&S公司的相應(yīng)測(cè)試解決方案。 1 引言 對(duì)于所有的無(wú)線通信系統(tǒng)而言,無(wú)論是3GPP UMTS這樣的移動(dòng)無(wú)線網(wǎng)絡(luò),還是像WLAN那樣的無(wú)線局域網(wǎng),除了通過(guò)高...
上傳時(shí)間: 2013-12-26
上傳用戶:dave520l
資源簡(jiǎn)介:Abstract: This reference design provides design ideas for a cost-effective, Low-power liquid-level measurement dataacquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. Thisdocument discu...
上傳時(shí)間: 2013-10-08
上傳用戶:sjy1991
資源簡(jiǎn)介:介紹了TI公司模數(shù)轉(zhuǎn)換器ADS5287的性能特點(diǎn)。用ADS5287作為模數(shù)轉(zhuǎn)換器設(shè)計(jì)了MIMO中頻接收機(jī)電路,完成了系統(tǒng)的PCB設(shè)計(jì),并使用Hyperlynx軟件中的Boradsim工具對(duì)設(shè)計(jì)中重要的高速信號(hào)線做了信號(hào)完整分析。
上傳時(shí)間: 2014-01-11
上傳用戶:zhoujunzhen
資源簡(jiǎn)介:概述了智能天線中的波束形成技術(shù)和MIMO系統(tǒng)中空時(shí)分組碼原理,基于傳統(tǒng)的最小均方(LMS)算法和MIMO系統(tǒng)中空時(shí)分組碼,研究分析了兩者相結(jié)合的可行性。
上傳時(shí)間: 2013-11-13
上傳用戶:zengduo
資源簡(jiǎn)介:分析了在HAPS中應(yīng)用協(xié)作通信的需求,研究了HAPS通信信道在不同仰角區(qū)域的特性,在此基礎(chǔ)上提出一種HAPS通信中基于MIMO的信號(hào)協(xié)作接收方案,并在不同仰角區(qū)域中對(duì)該協(xié)作接收方案進(jìn)行性能仿真,仿真結(jié)果表明,在中、低仰角區(qū)域內(nèi)使用該協(xié)作接收方案能夠獲得較大...
上傳時(shí)間: 2014-12-30
上傳用戶:hzht
資源簡(jiǎn)介:基于提高WLAN系統(tǒng)的容量和頻譜利用率的目的,在不改變現(xiàn)有WLAN協(xié)議的情況下,采用了IEEE802.11媒體接入控制(MAC)協(xié)議與MIMO系統(tǒng)相結(jié)合的方法。首先對(duì)空時(shí)編碼技術(shù)和智能天線技術(shù)兩種MIMO系統(tǒng)進(jìn)行可行性分析,確定采用空時(shí)編碼技術(shù)的MIMO系統(tǒng);再進(jìn)一步針對(duì)...
上傳時(shí)間: 2013-10-15
上傳用戶:jisujeke
資源簡(jiǎn)介:在衛(wèi)星通信系統(tǒng)中應(yīng)用MIMO技術(shù),主要面臨同道干擾和噪聲兩個(gè)問(wèn)題。文中介紹了克服同道干擾的MIMO衛(wèi)星通信線性檢測(cè)系統(tǒng),并為解決上述問(wèn)題,在輸入端引入擴(kuò)頻技術(shù)和接近香農(nóng)極限的LDPC編碼,而在輸出端進(jìn)行解擴(kuò)和譯碼,既減小了同道干擾,又明顯削弱了噪聲,從而實(shí)現(xiàn)...
上傳時(shí)間: 2014-01-01
上傳用戶:hfnishi
資源簡(jiǎn)介:由于MIMO OFDM系統(tǒng)對(duì)頻偏和定時(shí)比較敏感,因此同步問(wèn)題的研究顯得尤為重要,文中針對(duì)目前主流的同步方法做了全面的分析和總結(jié)。
上傳時(shí)間: 2013-10-21
上傳用戶:wojiaohs