parallel channel 中文意思是什麼
parallel channel
解釋
並聯通路-
Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。 -
First the paper introduces the composition of vxi measurement system both hardware and software. second the paper introduces the amc2320 8 - channel parallel daq module, including hardware components, drive functions and means to develop application programs with them, the specifications such as precision
本文介紹了vxi總線測試系統的軟硬體組成，簡要說明了amc2320八通道并行數據採集模塊的硬體組成和驅動函數，以及用戶如何利用廠家提供的驅動函數編寫自己的應用程序，重點是測試這個模塊的性能指標，包括精度、輸入信號的頻率范圍。 -
Abstract : a new algorithm applied to the fixed channel assignment in the cellular pattern is proposed. it is based on the theory of evolutionary algorithm. it uses the concept of multiple reuse plan ( mrp ) and solve the problem of large scale through blocking algorithm, and it is a fast 、 efficient and parallel searching method. it has been used in frequency plan system of beijing university of posts and telecommunications. it has been used in several plan project for some city, and been adopted because of its good performance
文摘:提出了一種新的用於蜂窩移動通信中小區規劃的固定頻率分配演算法.它基於遺傳演算法的基本理論，運用多層頻率復用的概念和分塊演算法解決了大規模區域的頻率規劃問題，是一種快速、高效的并行式搜索的頻率分配演算法.該演算法已用於北京郵電大學的頻率規劃軟體系統中，並用它為幾個市區作過規劃，效果滿足要求，且已被采納 -
Parallel structure of poly - phase decomposition and parallel mixer is applied in the ddc circuit, it solves the bottleneck in mixing and increases the handle speed. the partition of the tuning channel according to the digital mixing sequence, and the ddc by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal. according to the structure of the ddc and the requirement of the frequency
短數據快速測頻演算法的具體實現:使用并行流水線的設計方法，提高了系統的數據吞吐率，在100mhz的系統時鐘下，能夠實時處理400mhz ~ 600mhz速率a / d采樣的數據，在64點采樣， 100mhz系統時鐘情況下，初次測頻佔用時間640ns ，以後每次測頻佔用時間縮短到160ns ，實時地提供多相濾波下變頻所需的載頻位置信息，縮短了接收機的調諧時間。 -
In multi - channel digital magnetic record / playback heads, the angle between the parallel lines measuring gap scatter and the nominal direction of tape motion over the head assembly
在多道數字記錄讀出磁頭中，測量間隙變化的平行線與磁帶在磁頭組合件上運動的標定方向之間的夾角。 -
The software includes message format disposal 、 serial and parallel interruption 、 channel scan and the error detection and correction etc.
通信控制器的程序主要包括報文格式的處理、串並口中斷、通道的查詢和連接及差錯控制等等。 -
Measured for pressure is based in zero dead time parallel acquisition technology. one board has been 4 channels. one channel has been 100ksps sampling rate and 20mv 10v input signal range ( 7 scopes selectable )
對壓力的測量基於多通道無間隔并行採集技術，單模板可實現4通道并行採集，每通道采樣率100ksps ，信號輸入范圍20mv 10v （七擋可選擇） 。 -
We propose the joint filterbank precoders and decision feedback equalizers structure at first, by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased. then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly, and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model
第一種是採用濾波器組聯合均衡方法將色散通道等價為一組獨立的平坦衰落子通道，以提高接收機的分集增益；另外一種是提出採用離散正則模型將時變色散通道的盲信號處理轉化為時不變多通道模型的盲信號處理，並針對該模型對時變色散通道的盲均衡與盲辨識方法進行了詳細討論。 -
This kind of switch use the unilateral fin - line as the basic transmission line, the beam lead pin diode of alpha co. ltd is the control element, there is two diodes in each channel and they are welded in circuit in parallel connection
本課題主要研究的是毫米波鰭線pin管單刀雙擲開關。該開關採用單側鰭線作為基本傳輸線，控制器件選用alpha公司的梁式引線pin二極體，每路使用兩只，採用並聯形式焊接在電路中。 -
Parallel channel receiver
并行通道接收機 -
The thesis introduces the hardware and software design skills of a new type multi - channel pulse amplitude analyzer ( mca ) based on fpga chip and enhanced parallel port ( epp ) interface
本文從硬體和軟體兩方面詳細地介紹了以fpga晶元為控制核心的基於epp介面的新型多道脈沖幅度分析儀的研製過程。 -
The thesis makes and works as follows : at first, established the mobile channel model, through the analysis of the mobile channel characteristics ; the second, proved the advantage of ofdm througth comparing several parallel technologies, and implanting the ofdm technique in the mobile communication system modulator ; then, this thesis gived the baseband transmission architecture of ofdm mobile communication system and established the model of ofdm mobile communication system. at last, the thesis gives a brief introduction of the design of the hardware platform for the wireless communication system as well as the data transmission flaw
以下是本文所作主要工作：通過分析移動通道的特性建立了移動通信系統通道模型； ofdm技術與傳統的并行傳輸技術相比，具有很大的優勢，結合建立的移動通道模型，將此技術應用在移動通信系統之中；在對ofdm技術基本原理進行分析的基礎上，對ofdm移動通信系統進行建模與模擬分析：最後，給出了詳細的ofdm移動通信系統發射機和接收機的原理框圖，提出了一套基於dsp & fpga的ofdm移動通信系統硬體平臺設計方案。 -
A new design of fractal branching channel net for cooling of electronic chips is studied. based on the generation of a fractal branching net, heat transfer and the required pumping power for fluid flow in fractal microchannels and the parallel channels are compared
論文最後介紹了一種分形微管道網路，在給出其構造過程的基礎上，利用有限元法將其傳熱能力、所需泵送功率與平行微管道網路進行了比較。 -
Actually, " credit channel " is not a truly independent or parallel channel with " money view " because it can help explain the " money view " in more detail from the timing, structure and depth of monetary policy innovation impacts
其實， 「貨幣渠道」和「信貸渠道」並不是兩種相互獨立的渠道，後者是對前者的補充，能夠從貨幣政策發揮作用的時間、規模和程度三個方面，對前者進行更加具體、詳細的說明。 -
Abstract : the concept of equivalent heat channel is adopted to simplify the prdiction of thermal contact resistance. after establishing the model of contact surface, the definitive parameters in equivalent heat channel of the thermal contact resistance are gained. and the whole thermal contact resistance is composed of the parallel connected equivalent heat channels
文摘:採用當量熱流通道的概念對接觸熱阻的預測進行簡化分析，即對表面情況建立相應的表面模型后，確定出當量熱流通道上的各個參數，整個接觸面上的接觸熱阻即可視為有多個當量熱流通道形成的接觸熱阻並聯而成，從而可以預測出兩個物體間的接觸熱阻。 -
On the basis of qualitative analysis, this chapter has carried out quantitative forecast to the amount of chinese monitor markets in 2003 to 2007 years and the speed of growth in next 5 years, and forecasts the structure of monitor own brand and oem market, and has further carried out quantitative forecast to the structure of products, channel, region, vertical market and parallel market
在定性分析的基礎上，本章對2003 2007年中國顯示器市場的總量及未來5年的增長速度進行了定量預測，並對顯示器自有品牌和oem市場的結構進行了預測，進一步對產品、渠道、區域、垂直市場和平行市場的結構進行了定量預測。 -
On the basis of qualitative analysis, this chapter carries out quantitative forecast to the amount of chinese monitor markets in 2003 to 2007 years and the speed of growth in the next 5 years, and forecasts the structure of monitor own brand and oem market, and further carries out quantitative forecast to the structure of products, channel, region, vertical market and parallel market
在定性分析的基礎上，本章對2003 2007年中國顯示器市場的總量及未來5年的增長速度進行了定量預測，並對顯示器自有品牌和oem市場的結構進行了預測，進一步對產品、渠道、區域、垂直市場和平行市場的結構進行了定量預測。 -
The serial a / d transformation and the channel isolation technology are adopted. eight - channel parallel data acquisition and test data time - sharing storage are realized. verilog hdl ( hardware description language ) is adopted to design the vxi register - based interface circuit and control circuit of each channel
以fpga （ fieldprogrammablegatearray ）為控制核心，採用串列a / d變換器和通道隔離技術，實現了8通道并行採集和測試數據分時存儲功能，利用veriloghdl （ hardwaredescriptionlanguage ）設計vxi寄存器基介面電路及各通道的控制電路。 -
Comparing with the traditional parallel interface chips, they have fewer legs ~ smaller volume and use fewer resources. therefore, multiple channel data selecting controls keyboar &. display and alarm are realized through at89c52 ? four eight - bit i / o interface, without extending other i / o interface, making the system simplified and reliability increased
單片機的i / o介面晶元全部採用最新的串列工作方式介面晶元，與傳統的并行介面晶元相比，它們引腳數少，體積小，佔用的口資源少，因此用at89c52的4個8位的i / o口就完成了多個通道的數據採集、控制、鍵盤、顯示和報警等功能，沒有擴展其它i / o介面，使系統接線簡化，可靠性提高。 -
Vliw architecture integrates many executing units. the parallel working of these executing units greatly progressed the performance of dsp. this kind of dsp is more and more widely used in multi channel high - speed digital signal process
Vliw體系結構的dsp是近幾年出現的一種高性能dsp ， vliw體系結構在一塊dsp中集成多個執行單元，多個執行單元并行操作，極大地提高了dsp的性能，越來越多地用於多通道高速數字信號處理。
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