頻道方案 的英文怎麼說

中文拼音 [bīndàofāngàn]
頻道方案 英文
channel plan
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • : 名詞1 (長桌) table; desk 2 (案件) case; law [legal] case 3 (案卷; 記錄)record; file 4 (提...
  • 頻道 : frequency channel; channel
  • 方案 : scheme; plan; programme; project; proposal; suggestion; formula; scenario; outline
  1. In this dissertation, the analog - digital channelized receiver is studied. the optimized system, spectrum reconstructing and accuracy signal frequency estimation algorithms are researched

    本文研究了模數混合通化接收,著重研究其優化結構和關鍵技術以及線性調信號參數估計演算法。
  2. 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編碼視流通自適應非平等誤碼保護( acuep ) 。
  3. This scheme firstly determined the operating mode of coded video stream in nal layer according to the current channel state before they were packed. the coded video stream operated under ssm in error - free channel so as to reduce the packing tradeoff and increase the coding efficiency. while in error - prone channel, they operated under dpm combined with improved unequal error protection ( uep ) scheme based on human eyes characteristic in order to elevate their robustness to channel error

    中編碼視信息在進行打包封裝前,首先根據當前通狀態信息自適應地確定其在nal層中的工作模式,在無丟包通中採用單數據片模式以降低編碼視流的打包開銷,提高編碼效率;而在丟包通中採用數據分區模式以提高編碼視流對通誤碼的魯棒性能,同時基於人眼視覺特性,提出了一種改進的uep策略。
  4. In consideration of the crises of both the industrial water and the domestic water in the estuarial areas of the yangtze river caused by the decrease of the channel runoff and the intrusion of the sea water during the dry season in dry year, the concept, method and planning framework of the water resources allocation for the areas mentioned above along the main stem of the river are put forward herein based on the preliminary prediction of the future water demands by taking the water resources allocation therein during the dry seasons as the actual case in combination with the status quo of the water environment and water resources utilization concerned

    摘要針對枯水年枯水季,因河徑流量較少,鹽水入侵的率和強度顯著提高而引起的長江河口沿岸地區生產生活用水安全,文中結合長江口地區水資源利用和水環境現狀,以大通以下長江幹流地區在枯水季水量分配為實例,在初步預測未來河口地區水資源需求的基礎上,提出長江口地區水資源配置的思路、法及框架。
  5. Therefore, during system design, cascade coding combining reed - solomon codes and convolutional codes is utilized ; in addition, time - direction and frequency - direction interleaves are added to alleviate channel fading

    因此在進行系統設計時,採用了rs碼與卷積碼的級聯編碼,並同時加入時間交織和率交織來對抗通衰落。
  6. After elaborating the principle of an 802. lib key modulation scheme - complementary code keying ( cck ), this paper proposes and realizes a hardware circuit solution of 802. 11b pcmcia wlan interface card, which can reliably offer a maximal 11mbps data rate and freely switch within 14 working channels in 2. 4ghz frequency band

    接著在詳細闡述了802 . 11b協議核心調制技術?互補碼鍵控( cck )的原理的基礎上,本文提出並實現了一種峰值傳輸速率為11mbps的802 . 11bpcmcia高速無線網卡的硬體電路設計,在2 . 4ghz段該網卡可在14個工作通上自動切換,實現高速突發數據的可靠傳輸。
  7. The thesis analyzes the transmitting characteristic of the uwa channel, derives the propagation losses, eigenrays and channel impulse responses of uwa channel by use of the kraken normal wave mode and the ray trace algorithm based on velocity - depth curvilinear profile approximation. based on the analysis, a scheme of auto - replying lduwarc system by means of spread spectrum technique has been designed

    論文首先分析了遠程聲遙控通傳輸特性,分別利用kraken簡正波和射線跟蹤模型對深海和淺海水聲通的傳輸特性進行分析,對通的多徑結構、衰落和環境噪聲進行了計算,並在此基礎上設計了基於擴技術的自主應答式遠程聲遙控系統
  8. 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的設計;在對sdram的控制式做了深入探討后,給出了實現大容量多條sdram共同工作的解決,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介面實現高速dma數據傳輸,完全可以滿足視傳輸要求;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,從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。
  9. In improved uep scheme, the syntax elements belonged to luminance parts and chrominance parts was reassigned to different data partitions. those packets containing syntax elements belonged to luminance parts were got error protection at high level so as to guarantee their correctness during transmitting in error - prone network. simulation has shown that using proposed scheme, the packing tradeoff is decreased 8240 bytes in error - free channel and also the output bits and bit rate of coded video stream are decreased 2. 70kbits and 0. 33 kbps respectively

    模擬實驗表明,本能在無噪通中有效降低編碼器端8240位元組的打包開銷和2 . 70kbit的輸出比特數以及0 . 33kbps的比特率,而在有噪通中可使解碼輸出重構視圖像的視覺質量得到一定程度的提高,亮度分量峰值信噪比可增加近1db 。
  10. Using vdsl solution, telecom operators will be able to offer existing and emerging services at unequaled speeds over the existing twisted pairs, supporting both symmetrical and asymmetrical services, including fast broadband internet accesses, vod video on demand, hdtv high definition television broadcasting and high quality real time videoconferencing

    電訊供應商利用vdsl寬傳送,可為固網電話用戶提供寬網際網路視訊點播vod高解像電視hdtv廣播及即時視像會議等先進電訊服務。
  11. First, the structure of sdr and the physical - channel of td - scdma are expounded, then software and hardware models of the terminal receiver, which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ), are put forward

    首先對軟體無線電的組成結構和td - scdma物理通進行了闡述,在此基礎上提出了基於寬帶中帶通采樣軟體無線電結構的td - scdma終端接收機的軟硬體模塊設計
  12. On the basis of this theory, the applications of the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) in flight test were offered : increase the sampling in if ( intermediate frequency ) in flight test were offered : increase the capacity of the transmitter and the terminal receiver channels without changing the apparatus of original system and on the conditions of obeying the standard remote sensing

    首先對軟體無線電的組成結構和飛行測試中實際使用的通進行了闡述,在此基礎上提出了基於寬帶中帶通采樣軟體無線電結構在飛行遙測測試中的應用,在不改變原系統設備的情況下,在遵守遙測標準的前提下,提出增加機載發射機和接收機通容量的設計
  13. ( 5 ) from august, 2002 to april, 2003, on the base of analyzing of 10kw valve tv transmitter of channel 14, chongqing tv transmitting station, brought forward process the solidification scheme to 400w valve power amplifier of the driver

    重慶大學碩士學位論文中文摘要( 5 ) 2002年8月至2003年4月期間,在對重慶電視發射臺14( uhf ) 10kw電子管電視發射機進行研究分析的基礎上,提出了對該機末前級400w電子管功率放大器進行固態化改造的並予以實施。
  14. This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer

    本文在對短波數傳兩種常見調制式fsk及psk最佳解調性能分析的基礎上,討論了幾種採用典型調制技術的短波數傳系統(如時調制、多進制移鍵控慢跳、 chess系統)原理、優缺點以及抗衰落和抗符號間干擾的性能;分析了自適應串列數傳系統抗短波通衰落和多徑干擾的原理、關鍵技術;在本文的最後引入一種有望解決短波數傳系統低效率狀況的調制式bcm -分組編碼調制,給出了一個採用bcm技術與自適應均衡技術相結合的短波數傳系統,並通過計算機模擬進行了初部驗證。
  15. Considering the requirement of communication network, a local area computer communication system of plc based on usb interface was given after analyzing the application model of plc. then after theoretical analysis and digital simulation, the plc modem and the computer interface models were designed. the design of software about the two models was also finished

    本文首先介紹了電力線通信技術在國內外的研究概況,分析了電力線載波通的傳輸特性,討論了適合於電力線通信的擴載波通信式,然後結合通信網路的要求,在分析電力線通信應用模式的基礎上,提出了一種基於usb介面的室內計算機電力線通信,進行了理論上的分析和數字模擬,設計了電力線modem模塊和計算機介面模塊,編制了相應的軟體程序,並對軟體進行了測試分析。
  16. In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition

    本文首先概述了自編碼擴通信的原理、自編碼擴序列的產生法及其特性和擴通信系統編碼同步的理論,然後針對自編碼擴通信系統提出了擴序列捕獲:周期性地加入混沌序列同步碼,並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通、瑞利衰落通和多址干擾情況下進行了模擬,分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下,可以獲得較短的捕獲時間和較大的捕獲概率。
  17. Then one remote supervision system based on virtual instrument technology is studied and realized. the system can measure parameters such as signal level, carrier frequency and snr of remote channel, and can estimate the state of remote channel based on this parameters, and can display the time - domain and frequency - domain wave real time of remote channel, too

    針對目前遠動監控的不足,研究並實現了基於虛擬儀器技術的電力遠動通監控系統,該系統可以對遠動收發信電平、載波率和信噪比三個通參數進行測量,具有實時時域波形和功率譜波形顯示功能,並能根據通參數對通狀態進行綜合判斷。
  18. The conclusion is identified by computer simulation. the paper studies a noncoherent demodulation based on differential encoding in mc - cdma system and makes computer simulation of ber performance compared with that of coherent demodulation based on perfect channel estimation

    研究分析了一種使用差分編碼的非相干接收mc - cdma系統,對率選擇性瑞利衰落通條件下的誤碼率性能進行了計算機模擬,並且和基於理想通估計的相干解調進行了比較。
  19. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題,在此基礎上,從理論上論證了在低壓電網上應用擴載波數據通信技術的可行性和優越性,並重點論述了擴載波技術抗電力線噪聲干擾的機埋;本文提出了一個新穎的基於低壓電力線擴載波通信技術的集中遠抄系統的總體,即由用戶終端、集中器和電能管理系統所組成的網路系統,其中,用戶終端到配變集中器用低壓電力線作為通,中間無需其他硬體中繼設備,集中器到電能管理系統用公用電話網作為通
  20. On the government s proposed frequency plan, mr. kwong said, " without achieving frequency plan coordination with china, the government could not really decide on how many frequency channels are available for dtt

    被問及有關政府建議的時,鄺氏稱:在香港沒有配合內地的譜規劃協調下,港府難以決定數碼地面電視可採用多少條
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