design vt. 1.计划,企图,立意要…。 2.指定,预定;留给,留着。 3.设计,草拟,拟定,筹划;起草,画草图,打(图)样。 design an attack 计划进攻。 design one's son for [to be] a soldier 立意要儿子做军人。 design a room for one's library 指定一间屋子做某人书房。 vi. 计划;打样,打图样 (for)。 n. 1.计划;企图;目的,意图,野心,阴谋。 2.(小说等的)提纲,结构,构想,情节。 3.设计,图案,图样。 by design and not by accident 是故意不是偶然。 have a design on 对…有野心,企图。 have designs upon [against] sb.'s life 拟加害某人。
signal n. 1.信号,暗号;信号器。 2.动机,导火线 (for)。 3.预兆,征象。 call signal 【无线电】呼号。 an alarm signal 警报(器)。 an information signal 〔美国〕暴风警报(旗)。 an international code of signals 国际通用信号。 a signal of distress =a distress signal 船只失事信号。 adj. 1.暗号的,作信号用的。 2.显著的,非常的,优越的。 a signal victory [defeat] 大胜[败]。 vt.,vi. (〔英国〕 -ll-) 发信号[警报]给(人、船等);用信号[警报]通知(暴风、危险等);用动作[手势]示意;预示。 a signaling bomb 信号弹。
The simulation system includes the optics , chopper control , driving signal design , image data acquisition based on vi technology and image processing including image difference , non - uniformity correction ( nuc ) , image intensification and dynamic display , etc . according to the corresponding theories , the author designed all these software modules . the research on the pyroelectric imaging technology through this experiment is of great importance to practical thermal imaging system in the future 根据热释电焦平面成像原理,用sspa器件在可见光条件下设计了基于虚拟仪器技术的热释电凝视焦平面成像模拟系统,包括光学系统、斩波控制、驱动信号设计、基于虚拟仪器技术的图像数据采集和相关的图像处理技术,如图像差< wp = 5 >分、非均匀性校正、图像增强和动态显示等。
Chapter 3 investigates a mimo - ofdm transmitter signal design scheme based on spatial multiplexing named v - blast mimo - ofdm . using mmse sic algorithms and turbo detection , the system performance is near to shanno band . chapter 4 investigates two kinds of mimo - ofdm transmitter signal design schemes which named sfbc / v - blast mimo - ofdm and sfbc / v - blast mimo - ofdm respectively 第三章给出了基于复用的mimo - ofdm系统发射信号设计方案,分层mimo - ofdm ( v - blastmimo - ofdm ) ,并通过采用最小均方误差软干扰抵消检测算法和turbo迭代检测,逼近了该系统的香农限。
This converter includes not only analog parts such as the bandgap voltage reference , voltage pump , sample / hold unit , one bit comparator of high precision , multiply - by - two and difference unit , but also digital parts such as register and multiplexer . so the design of this type of converter is mixed signal design 模数转换器的内部电路包括基准源、降压模块、抽样保持电路单元、高精度的1bit比较器、倍乘作差单元等模拟电路模块,以及寄存器组、选择器等数字电路模块,属于数模混合电路。
Chapter 1 gives an introduction of mimo signal model and the principles of ofdm techniques . the most recent studies and the key techniques are summarized with emphasis on spatial processing . the significance of transmitter signal design and the detection algorithms in mimo - ofdm systems are made clear 本文第一章分别介绍了mimo系统的数学模型和ofdm技术的基本原理,对目前mimo - ofdm系统的研究热点和关键技术等进行了总结,尤其对mimo - ofdm系统信号的空时处理作了重点介绍,说明了mimo - ofdm发射信号设计及其检测算法研究的重要意义。
The work of this dissertation is focused on research of some key technics in signal design and processing of mcpc signal . the main content of the dissertation is summarized as follows : it gives a detailed description of the form of the mcpc waveform and its mathematical model , and analyses the formation and properties of phase coded sequence . it discusses the effect of signal parameters on autocorrelation , power spectra and ambiguity function in forms of single pulse and pulse train and compares different kinds of single pulse signals and pulse train signals 本文围绕着多载波相位编码信号在信号设计与信号处理的若干关键问题进行了研究,主要做了以下工作:描述了多载波相位编码信号( multicarrierphasecoded ,简称mcpc )的信号形式,给出了其数学模型,对其中相位编码序列的构成方式与特性进行了分析;从单脉冲和脉冲串两种信号形式入手,对多载频相位编码信号的参数在自相关函数、功率谱密度和模糊方程上的影响作了详细地讨论,对不同调制方式的单脉冲和脉冲串信号进行了比较。
Lpi ( low probability of interception ) radar can prevent itself from interceptor while detecting targets . the research on lpi radar technology is very important for theory and practice . the dissertation focused on the lpi signal design , digital lpi signal processing , optical signal processing and large bandwidth antenna Lpi ( lowprobabilityofinterception )雷达能够在探测目标的同时降低被敌方发现的概率,为雷达及其载体的安全性提供了保障,研究lpi雷达理论及实现技术具有十分重大的理论和实践意义。