transmitted bandwidth 中文意思是什麼
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The signal format of gps is analyzed, the principle models and mathematical models are established, the ber performance is analyzed in a channel interfered with wide - bandwidth awgn, narrow - bandwidth awgn, transmitted signal, single - tone signal respectively. based on the results above interference methods are discussed and simulated. then the performance of code acquisition and code trace of a digital gps receiver are discussed. the modem of linkl 1 and link4a are modeled and their ber performances are analyzed and simulated in channel s interfered with awgn, single - tone signal and multi - tone signal respectively
建立了jtids的收發終端的數學模型，分析它在噪聲干擾、相關干擾、互相關干擾下的誤碼性能，提出較佳的干擾方法和干擾碼型，並進行模擬模擬；分析了gps的信號格式，建立了gps的原理框圖模型、信號數學模型，並對其在寬帶噪聲干擾、窄帶噪聲干擾、轉發干擾、單頻干擾等情形下的誤碼性能進行了分析比較，提出相對較佳的干擾方法，並做了計算機模擬，針對一數字式gps接收機中擴頻碼捕獲與跟蹤環的特性進行分析；建立了link11和link4a數據鏈調制解調數學模型，對它們在噪聲干擾、單音干擾、多音干擾等下的誤碼性能進行分析，最後對干擾情況進行了模擬模擬。 -
When the bandwidth changes, audio and video will find the best transmission combination from the multi - coded file. with the change of the bandwidth, the server can modify the number of messages to be transmitted
當帶寬改變時，影音的傳送會從這個多重編碼文件中找出最佳的傳送結合。服務器可以因帶寬的改變而更改資料傳送的數量。 -
And the waveform of the transmitted signals was designed based on the target distance ( 5 ~ 50m ). the waveform is triangular fmcw with central frequency at 6ghz, modulation bandwidth 100mhz, modulation period 10 s, step frequency 0. 2mhz, and step time 10ns
在此基礎上，設計發射信號波形參數為三角形調頻連續波，中心頻率6ghz ，調制帶寬100mhz ，調制周期10 s ，步進頻率0 . 2mhz ，步進時間10ns 。 -
By formula about effective bandwidth, he get the bandwidth near 1540 nm wavelength, which is 64. 54nm. the bandwidth is more bigger than the gain bandwidth of er - doped silica fiber and fluoride fiber amplifier ( 20nm - 30nm ). it is useful to improve transmitted capacity of information in fiber
對1540nm處光譜有效帶寬的計算，得到結果為64 . 54nm ，這個帶寬已遠高於目前常用摻er硅光纖和氟化物光纖放大器的20 - 30nm增益帶寬，于擴大光纖信息傳輸容量有很大益處。 -
In wireless digital transmissions, due to the delay dispersion of the transmitted symbols and the limitation of channel bandwidth, the channel may induce inter - symbol interference ( isi ), which results the frequency selective fading
在無線數字傳輸中，由於時延擴展和通道帶寬限制，引起碼間串擾，產生頻率選擇性衰落。 -
Unlike pilots which are used for estimation of channel and must waste some useful bandwidth, the ppss, whose power can be boosted 3db or 6db to suppress efficiently the additive noise, is useful data transmitted, thus efficiency of the ofdm has been increased
與用於做通道估計的導頻符號不同， ppss傳輸的是有用的數據，因此提高了系統的帶寬利用率， ppss的平均功率增加3db或6db可有效抑制通道的加性高斯噪聲。 -
When estimating frequency with the fft, the resolution and accuracy are limited by the observation time of the signal, i. e., a / = it. the level measurement accuracy of the fmcw radar is determined by the bandwidth of the transmitted signal
掃頻帶寬1 . 5ghz ， fft兩條譜線的間隔對應的距離為10cm ，而液位測量系統的精度要求達到1mm ，因此直接利用fft頻譜估計距離顯然無法達到精度要求。 -
In addition, atm cells are transmitted in the sdh ring network, with bandwidth shared by all node elements on the ring
另外， atm信元在sdh環網中傳輸，其帶寬由環網上的所有節點單元所共享。 -
When the digital streaming video is transmitted on internet, it will be affected by the network, such as bandwidth, so the paper also deals with streaming video watermarking and its exclusive requirement. at the last chapter, an object - based watermarking algorithm has been presented. the watermarking algorithm for mpeg - 4 compression is devoted to address the influence from the rate scalability, based on static texture object in mpeg - 4 and watermarking in wavelet domain
在此基礎上針對視頻與圖像的異同點，分析比較了靜態圖像水印和視頻水印特點的異同，並且結合在internet上傳輸視頻時，網路自身的特性（比如帶寬資源等）對視頻流產生的影響，以及這些影響對視頻流水印技術的特殊要求，結合基於對象的視頻編碼標準mpeg - 4的特性，提出了在視頻對象中利用基於小波變換的水印方案。 -
Ofdm is one of multi - carrier digital modulation techniques, in which a single high data rate data stream is transmitted using a number of lower data rate sub carriers, it has many properties, such as robustness to multi - path fading, high data rate transmission capability with high bandwidth efficiency, and so on
Ofdm是一種特殊的多載波傳輸方式，它使用一系列低速子載波并行傳輸數據，使得它具有抗多徑干擾的能力、能以很高的頻譜利用率實現高速數據傳輸等。 -
When we research and develop remote control software in the environment of ncc based on " host / thin - client " architecture, much problem must be solved. in order to control the host in remote, the client not only can share the resource of host, but also can receive the image transmitted by the host effective since the bandwidth is expensive
在「主機瘦客戶端」結構的集中式計算環境下開發遠程監控軟體，不但要實現客戶端共享主機系統資源的集中式計算工作模式，還要盡量降低數據傳輸時所佔用的網路帶寬，最終達到提高主機系統的圖像傳輸質量，使客戶端能夠對遠程主機系統進行有效實時監控的目的。 -
In this thesis, routing protocol and wireless resource management are combined for the voice service in the communication network. session triggers the source node to build the bandwidth reserved routing to the destination. for the data service, aodv protocol is used to find the shortest route between source and destination, and the data is transmitted hop by hop
本文將路由協議與無線資源管理相結合，對于通信網路中的話音業務，每次會話觸發源節點發起建立預留帶寬的路由;對于數據業務，採用aodv路由演算法按需尋找從源節點到目的節點的最短路徑，然後逐跳進行預約傳送數據。
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