back signal 中文意思是什麼
back signal
解釋
回應信號-
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。 -
And when the array transmits back to the cell - phone user, the processor sends an out - of - phase signal to one of the antennas, generating a radio beam that runs from north to south
當陣列發射訊號給行動電話用戶時，處理器會傳送一個異相的訊號到其中一個天線，產生由北往南的無線電波束。 -
Busy - back signal
話中信號 -
A retrodirective array can transmit a signal back to the interrogator ’ s position without any a priori knowledge of the incoming angle or relying on sophisticated digital signal processing algorithms. this merit makes it have good applied possibilities in modern military, especially digital commercial communication systems
方向回溯天線能夠自動跟蹤來波方向，而不需要來波方向的先驗知識和復雜的數字信號處理演算法，這一特點使其在現代軍用、尤其民用數字移動通信系統中有很好的應用前景。 -
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。 -
Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。 -
It can separate sync signals from ntsc, pal and secam video signals, and produces composite sync output signal, back porch output signal, horizontal sync signal, vertical sync signal and odd / even field output signal
它可以對ntsc 、 pal 、 secam制式的視頻信號進行同步分離，獲得所需的同步信號，還能準確地輸出復合同步、后沿輸出、行同步、場同步和奇/偶場輸出信號。 -
In fore part of the article, sr theory and any gene which affect sr happening are generally recommended. we also research deeply about condition of sr phenomenon happening. faint signal detection system communication between dsp processing system and pc managing system are described in the detail in back of this article
本文前半部分簡略介紹了隨機共振理論及各種影響隨機共振因子之間的相互關系，對隨機共振發生的條件進行了深入研究；本文後半部分就小信號檢測系統的隨機共振演算法以及dsp系統與pc機間的通信進行了詳細的描述。 -
Synchronous pulse generating circuit : got by back panel output 1pps 、 1ppm 、 1pph synchronous pulse signal. pulse is photoelectric isolation static idle contact form output
同步脈沖發生電路：通過後面板輸出秒（ 1pps ） 、分（ 1ppm ） 、時（ 1pph ）同步脈沖信號。脈沖是光電隔離的靜態空接點形式輸出。 -
Clear back signal cbk
後向掛機信號 -
The light signal back - scattered from wake bubbles can be detected by taking some measures
採取一定的措施，尾流氣泡後向光散射信號是可以探測到的。 -
While tv signal is switched, scm outputs volume adiusting code with refference to default volume in a certain period to realize closed loop control of tv accompanyind sound, afterwards back to open loop control
當信號切換操作時，在一定時間內以默認音量值為參照，由單片機發出電視接收機音量調節編碼，實現電視伴音音量閉環調控，調控結束后恢復開環形式。 -
Severe stomach pain could be a sign of appendicitis. severe chest or back pain could signal a heart attack
嚴重的胃痛可能是盲腸炎的徵兆。嚴重的胸口痛或背痛以為著有心臟病。 -
Severe chest or back pains could a signal of a heart attack
劇烈胸痛或背痛則可能是心臟病發作。 -
In the synchronous " model, based on the idea of polygonal flux linkage locus, by means of constructing the switch state period table of three phrase voltage inverter is required. in the brushless model, the igbt ( isolated gate bipolar transistor ) switch state period table is gained by gal ( generic array logic ) which analyzes the signal of position feed - back
在同步方式下，基於多邊形磁鏈軌跡法的思想，用作圖法求得三相電壓型逆變器的pwm波形序列；在無刷直流方式下，用gal對位置反饋信號進行邏輯綜合，得到開關管的導通規律。 -
Arranged signal activating lock circuit and time - base control circuit in the sound wave receiving circuit to take the initial signal of back wave as the valid one in the cycle, thus to improve the ratio of signal vs. noise and detective precision
在超聲波接收電路中設有信號觸發鎖定電路和時基控制電路。實現以各探頭中最早收到的回波信號為本檢測單元的有效信號，有效提高信噪比和檢測精度； 4 -
Clear - back signal
終話信號 -
In this system, high speed clock is produced by the clock circuit when acquiring and feeding back signal. the required clock is produced by the pc program when communicating
在本系統中採集和回放時所需的高速時鐘由時鐘電路產生，通訊時所需的時鐘則由上位機的程序產生。 -
The four - times - frequency design of feed - back signal of ac servomotor and the design of speed examination arithmetic of pmsm are completed and the linearity modulation of torque electric current is realized
完成了交流伺服電動機反饋信號的四倍頻電路、交流永磁同步電動機速度檢測設計，實現了轉矩電流的線性調節。 -
The orpadtc model can always match the real process and the upldt output, which can be used as the feed back signal of the control system, can be predicted. the orpadtc completely solves the problems, sensitive to the error of the model parameters and the low power against disturbance, which exist in the traditional smith c ompensator
這樣無論實際受控過程的參數怎樣變化，只要不影響系統的穩定性，對象參考參數自適應時滯補償器的模型總能和實際過程趨於一致，並提前獲得大時滯不確定過程實際輸出的預測值，以便在構成閉環控制系統時替代實際輸出作為反饋信號。
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