斜率
- 与 斜率 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The second one: we studied the effect of temperature on performance of LDs. It was found that threshold current increase exponentially, outpower and slope efficiency decrease parabola and exponentially respectively. Coefficient of temperature shift is 0.24/K, whereas characteristic temperature also decrease with rise of temperature.
研究了温度对激光器各参数的影响,随着温度的增加,阈值电流呈指数增加,输出功率和斜率效率分别呈抛物线和指数关系递减,同时特征温度也减少,波长随温度的漂移系数为0.24nm/°C,并且总结了一些温度和结构设计方面的关系。3。
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The consumption function slopes upward, and its slope is flatter than the aggregate production curve.
消费函数向右上方倾斜,它的斜率比总产出曲线平坦。
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This algorithm overcome these problems, so the authors can obtain a high quality fitting curve and the algorithm can be used in every graph.
矢量斜率克服了上述问题,从而提供了拟合曲线的质量,且算法可适用于任意曲线。
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In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.
为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解,根据稳态速率方程组,针对典型的双包层光纤激光器参量,在估计了上能级粒子再发射项和抽运光产生的影响后,采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度,明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值,简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式,并对其相关问题进行了讨论,以915nm,920nm和975nm的抽运光为例,当输出激光为1090nm时,得出975nm抽运光产生的斜率效率最高并可高达约87%。
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To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.
针对线性调频连续波雷达实现中急待解决的技术问题,文中提出并验证了线性调频连续波信号的综合动态测试技术,可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试,为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段;文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号(时带积3×10〓)的扫频线性度从25%改善为0.1%(方均根线性度0.04%),优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果(0.22%);为了改善线性调频连续波雷达的实时性和分辨单元数处理能力,文中发展完善了实带通信号的采样定理并给予了严格证明,并在此基础上提出了欠采样等效混频原理,将其应用于实际线性调频连续波雷达的距离分段处理中;针对线性调频连续波雷达中系统背景干扰和回波动态范围问题,创立了系统背景综合抑制技术和频域动态范围压缩技术,并将它应用于实孔线性调频连续波雷达系统中,显示出它们的有效性。
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What we mean, by gas transporting system, any pressure regulator, valve, line, fitting, filter, purifier, etc.
你的分析系统的分析斜率会因气体传输线路而严重受制。
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For the transmission at the head pulley drive station only the differential amount between admissible belt tension force and slop descending fo...
最佳答案:用于传输的头轮驱动站只受理之间的差别数额带张力及污水降部队因此而获得所需的带张力在决胜一侧的滑轮是只有一小部分的斜率降部队。
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As for the difficulty to determine the point of maximum slope of the transition curve and the bug of using little information of the system, a PID parameters tuning method is presented in this paper based on multinomial fitting of the models transition curve.
针对实际中常用的飞升曲线法难以确定最大斜率处和利用系统信息较少的不足,提出了一种基于曲线拟合的PID控制器参数整定方法。
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This technique utilizes characteristic points and slope of characteristic straight line on log-log plot of pressure derivative vs time to calculate parameters quickly and accurately.
该方法利用压力导数与时间双对数图上的特征点和特征直线的斜率来计算参数,快速、准确。
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This method first jitters chirp rate polarity of LFM signal transmitted by the radar in slow-time domain,then does match-filters for the jamming signals hidden in the radar echoes,since jamming is more powerful than radar echo,the next process of limiting will lower the amplitude of jamming greatly,after limiting process,limited echoes are inversely match-filtered,so jamming and real radar echo are all back to the original time domain,then the next normal imaging process can be implemented which will also provide the real radar echo more gain than jamming,so SJR(Signal-to-Jamming Ratio) is further enhanced.
该方法首先在慢时间域捷变雷达发射信号的调频斜率极性,其次在接收脉冲后首先对转发的干扰信号进行匹配、限幅,然后在逆滤波之后正常成像。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。