signal coding 中文意思是什麼
signal coding
解釋
信號編碼-
Methods : an artificial gene for fl extracellular domain cdna was synthesized by using favored genetic codons of pichia pastroris. by inserting human fl extracellular domain cdna coding 156 amino acid resi dues into pichia pastoris expression vector ppic9k containing aox1 promoter and the sequences of alpha secreting signal peptides, a recombinant expression plasmid ppic9k - fl was constructed, and integrated into the alcohol oxidase region of the host genome
為了提高外源基因的表達量，我們根據畢赤氏酵母偏愛密碼子人工合成了編碼fl胞外區156個氨基酸的cdna序列，目的序列被定向克隆到酵母分泌型表達載體ppic9k質粒上，構建ppic9k - fl表達質粒。 -
The hardware of the ip phone codec to be designed is based on the fixed point digital signal processor ( ti ' s tms320vc5410 ) while the compression and decompression core in the software of dsp is based on the itu - t vg. 729a. ip phone codec carryout the task of collecting / playing - back. coding / decoding of speech signal and communication with embedded cpu. etc
該語音編解碼器的硬體基於tms320vc5410 ，編解碼演算法遵循itu - tg . 729a協議，能夠實現語音信號的採集/回放、編碼/解碼以及同嵌入式cpu通信等功能，在8kbit / s的碼率下能夠提供獲得良好的語音質量。 -
On the base of researching the theory of the scheme and analyzing the signal feature, it is obtained that the existence manners and character of distance information in the differential frequency signal. at the same time, a new conclusion is gained that the technology of frequency agility can decrease the constant error of system. it is also to say that frequency agility and frequency modulation fixed - distance fuze has the similar feature to random period frequency modulation fixed - distance fuze. according to the theory of address coding in the hopping - frequency communication, the paper presents the principle of selecting the frequency agility sequence which fit to the radio fuze and constructs the frequency agility sequence family based on the rs codes
在深入研究方案原理和分析信號特徵的基礎上，獲得了該體制引信差頻信號中，距離信息的存在形式和特點，得出了頻率捷變技術的引入降低了系統定距固定誤差這一新的結論，即頻率捷變調頻定距引信在定距性能上具有類似隨機周期調頻定距的特徵。本文引入跳頻通信地址編碼理論，結合無線電引信的具體特徵，提出了適用於無線電引信的頻率捷變序列的選擇原則，並構造了基於rs碼的寬間隔頻率捷變序列族。 -
3. based on analyzing the affection on coding performance of two operating modes in h. 264 nal layer, such as data partition mode ( dpm ) and signal slice mode ( ssm ), an adaptive channel uep scheme ( acuep ) for h. 264 video stream was proposed
在研究了h . 264編碼視頻流在nal層下的兩種工作模式對編碼性能影響的基礎上，提出了一種h . 264編碼視頻流通道自適應非平等誤碼保護方案（ acuep ） 。 -
In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab
針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。 -
This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results
針對傳統的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點，提出了一種利用模糊理論和「改進的譜相減法」結合的「模糊譜相減法語音增強」 ;針對語音信號端點檢測困難的特點，通過matlab模擬試驗，給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預測編碼倒譜參數和差分線性預測編碼倒譜參數相結合的離散隱含馬爾可夫模型進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系統，在保證系統實時性的同時，實現連接漢語數碼語音識別系統識別率的提高;在硬體實現上，詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系統各部分硬體設計;在軟體開發上，給出了連接漢語數碼語音識別的軟體設計各部分的流程圖，並對各部分進行了matlab模擬，並給出了模擬結果。 -
Firstly introduced the basic theory and method with which the analog signal can be convert to digital form, including sampling theory and course, quantification and quantification error, coding, beside those we discussed some applications of sampling technology, the reason of frequency mixture and the method to eliminate it chapter 4 introduced analog mux - switch, for the reason of simpleness we only introduce it briefly
從第3章開始，對數據採集的基本理論進行討論，首先介紹了模擬信號數字化處理中的基本理論、方法，包括采樣過程、采樣定理、量化與量化誤差、編碼，還討論了幾種采樣技術的應用、頻率混淆產生的原因及消除措施。第4章，介紹了模擬多路開關。 -
Study on signal coding mode of twacs
工頻通信系統通道編碼的研究 -
Chapter two describes the system ' s communication protocol and signal coding
第二章主要講述了智能控制及安防系統的通信協議和信號編碼。 -
Multiplexing and conversion of mpeg - 2 are important technology in present broadcasting network. mpeg - 2 is a generic standard about motive video and associated audio signal coding, which has been described by motive picture expert group
Iso發布的mpeg系列標準為廣播電視節目格式的規范提供了可能，其中， mpeg - 2碼流的合成與轉換是目前廣播電視行業的重要技術。 -
It showed that activated inhibition by weak noise could be gabaergic inhibition. from above the findings, we could give a hypothesis that the input of random oscillation induced by noise in the cochlea to central auditory system could be integrated in the central auditory nucleus and the response of sound - sensitive neuron to sound stimuli could be adjusted to an optimum state for signal intensity coding
根據這些變化可以推測，這種背景噪聲的生物學作用可能是通過弱噪聲所引起的耳蝸隨機共振的輸入，在上行過程中經各級聽覺核團的整合，將中樞聲敏感神經元調定在一種準備狀態，並定型放電率函數和調制神經元對聲馨碩士學位論文master 』 st砰iesis強的編碼。 -
To extent the use of this 1c, some circuit blocks are added. in the design, digital circuits are used to process the signal and control the precision of coding. and some circuits are used in different time by several functions to reduce the number of transistors used and the dissipation
電路設計中，為了便於信號處理以及控制編碼精度，採用數字的方法進行量階和預測碼的計算；同時，為了減小電路規模，採用了時分復用的概念，用同一部分數字電路實現量階調整和預測碼的生成，增加了編碼精度，減小了電路的規模和功耗。 -
In the dissertation, the principle of image coding, the jpeg system and the real - time signal processing system based on dsp are introduced first. then the design of a jpeg real - time image decoder system based on motorola coldfire mcf5272 is discussed
本文首先介紹了圖像壓縮技術的原理、 jpeg標準和基於dsp的實時信號處理系統，然後在motorolacoldfire32位微處理器mcf5272上設計實現了jpeg解碼演算法。 -
A novel motion estimation algorithm which is based on compensability analysis of the input video signal is proposed. the motion estimation operation is performed only on the compensable blocks in the image frame. the time of estimation computation and the bits for coding the motion vectors are all reduced significantly than those of conventional algorithms
本文介紹了一種新穎的運動矢量估計演算法，我們首先對待編碼的圖像進行可補償性分析，然後運動矢量搜索只對可補償塊操作，因此無論是搜索次數還是用於對運動矢量編碼的比特數均明顯少於傳統演算法 -
The experiment result shows that the coding and decoding rates are high, and the signal to noise ratio, compression rate and visual quality are quite good
實驗結果表明該方法編（解）碼速度快，並有較好的信噪比、壓縮比及視覺效果。 -
The voice recording instrument adopts 8bit pcm and 4bit adpcm voice coding and decoding mode, can record the eight - channel voice signal simultaneously. it can save the recorded data in the flash memory or in the pc through the ethernet. the recorded voice signal data also can be played back
該語音記錄儀採用8位pcm或4位adpcm語音編解碼方式工作，可實現8路音頻輸入信號同時錄音;能夠將錄制的數字語音數據存儲在nand型flash中或通過以太網介面上傳到pc機存儲;能夠將錄制的數字語音數據進行回放。 -
In the second chapter, wavelet theory, which is the theoretic basis of embedded zero wavelet coding is introduced briefly, including wavelet transform " s local characteristics, multi - resolution analysis, discrete signal ' s fast decomposition and construction, wavelet and filter group
第二章，對小波零樹編碼演算法的理論基礎? ?小波理論作了簡要的介紹，包括小波變換的時頻局部特性、多解析度分析、離散信號的快速分解與重構以及小波與濾波器組的關系。 -
It can be summarized in several aspects : 1. researching the coding and decoding technic, and give the some method of improving the space coding theory. 2. researching the digital signal process technology, and build the control system by using the digital signal processor tmslf2407a. 3
本文主要研究激光駕束制導反坦克導彈技術以及其物理實現，主要工作包括以下幾個方面： 1對于制導編碼技術進行了一定程度的研究，提出了改進空間編碼技術的若干方法。 -
With turning the scale of asic ( appl ication specified integrated circuits ) to s0c ( system on chip ), which conunon1y is composed of mcu, specified function ip cores, memory, periphery interface etc, the ip reuse techno1ogy is very important in s0c design flow, which can realize the constructions of different levels components. the approach of configurable system, method and design f1ow for udsm ( u1tra deep sub micron ) asic, logic system design using hdl 1anguage, coding style, static and dynamic verification strategy are a1so presented in chapter 2. in chapter 3 we study the vlsi - - dsp architecture design, dense computation and high speed high performance digital signal processing unit structure, which includes high speed mac components and distributed arithmetic unit
在工程設計方法及結構化設計和高層次綜合的研究中，介紹了在深亞微米工藝條件使用的方法和asic設計流程，討論了高層次綜合的核心如何從描述推出電路構成的設計思路，針對不同目標的設計技巧討論了採用hdl語言進行邏輯系統設計的方法，給出了用vhdl語言進行代碼設計時的規范和風格，在面向soc的驗證策略討論了動態和靜態的驗證技術，提出了進行單獨模塊驗證、晶元的全功能驗證和系統軟硬體協同驗證的整體策略。 -
2. reseach different methods and steps carried out including discrete cosine translation, run - length enconding and haffman encoding about signals coding and decoding. the signal - coding structure diagrams and programmable flow charts are not only established but also the applide program about signal coding and decoding is complied on vc developable flat
研究了信源編解碼的各種方法（包括dct 、遊程編碼和哈夫曼編碼等）以及實現的步驟，建立了信源編碼實現的結構圖和程序流程圖，並在vc的開發平臺下，編制了信源編解碼實現過程的應用程序。
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