通奎斯特 的英文怎麼說
中文拼音 [tōngkuísītè]
通奎斯特
英文
thunkvist-
Chapter 3 discusses the modules used in the fh - mpsk and fh - / 4dqpsk systems. these modules include : duc / ddc ( digital up converter / digital down converter ), nyquist flitter, burst start detection, interpolation module, pll ( phase locked loop ), pll error extraction, initial phase correction and the coding and decoding for tcm
第三章主要討論了跳頻模式下fh - mpsk和fh - 4dqpsk系統中各個模塊的設計，這些模塊包括：上下變頻器、奈奎斯特濾波器、信號到達檢測、插值模塊、通用環路、各環路誤差提取方法、初始相位校正和tcm編譯碼。The theory basis for medium frequency receive includes sample theory, the signal ' s orthodoxy transform theory, multi - rate digital signal processing theory and signal ' s modulation and demodulation theory
中頻數字接收的理論基礎是信號的奈奎斯特采樣定理或帶通采樣定理，信號的正交變換原理，多采樣率數字信號處理原理以及信號的調制解調理論。After that, it discusses the principle of the band - pass technology, illuminating the feasibility of the digital intermediate frequency system based on the sampling speed which is two times lager than the signal band but unsatisfying the nyquist theorem
隨后討論了帶通采樣技術的原理，說明可以使用不滿足奈奎斯特低通采樣定理但大於信號帶寬兩倍的采樣速率進行中頻數字化，減輕基帶處理負擔。Unnoticed, and with but a brief word to cedarquist, magnus and harran went down the marble steps leading to the street door, silent.
曼克奈斯和哈倫只對西達奎斯特說了一聲，就悄悄地走下那段大理石臺階，朝那扇通到街上的大門走去，兩人都不吱聲。A solution is to use a low - pass filter to eliminate frequencies higher than the nyquist rate
解決辦法是用低通濾波器濾除高於奈奎斯特頻率的成分。This thesis begins with hfc network theory and docsis, analyses modulation / demodulation process of data communication in hfc. then, several theories are analysed including qam ( quadrature amplitude modulation ), nyquist root square filter, fec ( forward error correction ), map ( bandwidth allocation map ). and digital signal transmission involved the other important international standard ? itu - t j. 83 annex a / b, is discussed
本文從hfc網路理論和docsis協議入手，分析了hfc數據通信的調制解調過程，對qam調制、奈奎斯特均方根濾波器、前向糾錯（ forwarderrorcorrection ，簡稱fec ） 、 map通信等進行了闡述；還從中探討了電纜數據機需要用到的另一個國際標準ituj . 83annexa / b所設計的mpeg信號的數字傳輸。Waldner : a good question. jens lundquist is currently playing very well, too. however, we first have to pass the group round successfully and become second
華德納:這是好問題，倫德奎斯特目前狀況也很不錯，但是，我們首先必須成功通過團體賽並且拿到第二The system can make the total signaling rate very close to the nyquist rate of given frequency band through the use of a lot of subchannels
該系統利用大量的子通道使得總的信號速率能夠非常接近給定頻帶的奈奎斯特速率。According to the nyquist first criterion, the usual way is to use raising cosine shaping filter in real communication system. by choosing appropriate rolling off factor and determining the distribution of its characteristics between the transmitter and the receiver, the shaping, filter will minimize the nonlinear distortion, of channel
根據奈奎斯特第一準則，在實際的通信系統中，通常的途徑是採用升餘弦滾降成形濾波器，選擇適當的滾降系數，並確定其特性在收、發兩端的分配問題，以便將通道非線性的影響最小化。分享友人