code n. 1.法典;法規(guī)。 2.規(guī)則,準(zhǔn)則;(社會、階級等的)慣例,習(xí)俗,制度。 3.(電)碼,代碼,密碼,暗碼;代號,略號,暗號。 4.【生物學(xué)】遺傳(密)碼。 the civil [criminal] code民[刑]法典。 the moral code道德準(zhǔn)則。 code of signals 信號密碼(本)。 code of the school 校規(guī)。 code and conventions 規(guī)章制度。 C- Napoléon 拿破侖法典。 C- of Hammurabi (古代巴比倫的)漢穆拉比法典。 code of honour 社會禮法;決斗慣例。 code of written law 成文法典。 the International Code 國際電碼。 the Morse code 摩爾斯電碼。 vt. 1.把…編成法典[法規(guī)]。 2.把…譯成[編成]電碼;編(碼);譯(碼)。 n. -r 【自動化】編碼裝置;【電訊】記發(fā)器。
frequency n. 1.屢次,頻仍,頻繁。 2.(脈搏等的)次數(shù),出現(xiàn)率;頻度;【物理學(xué)】頻率,周率。 audio frequency音頻。 a high [low] frequency高[低]頻。 the frequency of earthquakes in Japan 地震在日本的頻繁發(fā)生。 mean [median] frequency中頻。 resonance [resonant] frequency諧振頻率,共振頻率。 ultrahigh frequency超高頻。 ultralow frequency超低頻。 very high frequency甚高頻。 very low frequency甚低頻。
Combination pulse and frequency coding system 脈沖與頻率組合編碼制
Multi - frequency coding register 多頻記發(fā)器
A novel design of ofdm - based space - frequency codes is proposed such that the maximum achievable diversity gain is available 摘要提出了一種基于ofdm達到最大可達分集增益的空頻碼設(shè)計方案。
First , we set up the models of linear frequency coded radar and two phase coded radar differently , and discuss the models in some degree 首先,本文分別構(gòu)建了線性調(diào)頻和二相編碼雷達接收機的模型,并對其做了大量的數(shù)學(xué)分析。
The jamming of two models of pulse compressed radar , linear frequency coded radar and bi - phase coded radar , are studied in this dissertation 本論文討論了脈沖壓縮雷達中兩種典型的雷達制式:線性調(diào)頻雷達和二相編碼雷達的干擾。
The tree of life contains the highest and strongest frequency codes in the form of the divine names which the efforts of the hierarchy have been able to obtain 生命樹包含了以神性名稱形態(tài)存在的最高和最強烈的頻率編碼,層次的努力成就就能夠獲得頻率編碼(代碼) 。
The drfm permits generation of appropriate radar returns to chirped , frequency coded , phase coded , pulse coded , or other similar type coherent radars with pulse to pulse or cw modulations 在另一些情況下,需要將不同于接收到的雷達信號的特征的信號返回雷達系統(tǒng),用來進一步使雷達系統(tǒng)混淆工作。
This paper introduces the basic principles of mimo - ofdm technology briefly , and focuses on the research on the space - frequency coding , receiver design , multiuser systems and some relevant open areas for the further research 簡要介紹了mimo - ofdm技術(shù)的基本原理,重點討論了空頻編碼、接收機設(shè)計、多用戶系統(tǒng)等方面的研究現(xiàn)狀以及未來研究的領(lǐng)域。
Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest . the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function . and the mismatch - phase sequence is corresponding with the frequency sequence one by one 而頻率編碼為不均勻分布,由所觀測目標(biāo)的頻譜信息提取出概率密度函數(shù)決定頻率編碼序列的分布;相位編碼為二元的偽隨機序列,采取均勻的二相編碼,消減同頻脈沖帶來的過高的相關(guān)函數(shù)的旁瓣;而失配相位為與頻率編碼相一一對應(yīng)于各子脈沖中。