查询词典 analogy

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

Features that remain constant throughout recorded language history are identical with language universals encountered in modern languages. Thus, we find changing inventories of phonemes but complete constancy in the basic phonematic mode of signaling. All languages are and have been phoneme-language throughout the documented past. Sound analogy or sound imitation is never encountered un-phonematized.

在历史的纪录中，恒定的特徵在所有语言中是普遍相同的，现代语言也不例外，因此我们发现音素的存留虽有改变，但是在发出信号的基本音位调式上是完全恒定的，由历史纪录可知，所有语言都是以音素为本的语言，声音的类比和声音的模仿永远都是音素化的。

So, as another analogy, for a thousand pounds, that would be 16 ounces of water.

即，打个比方，在一千磅土壤中会有 16 盎司的水。

Technological director Wang Jiang had made an analogy vividly and popularly that game procedure's writing is frame of game,just like the human skeleton; story plot and characters' planning like the muscles of the human body, can let people move; The fine arts picture of the game is the human skin, and can make people more plump and more beautiful.

技术总监汪疆形象通俗地打了个比方：&游戏程序的编写就像人体骨架，是游戏的框架；剧情故事、人物的策划好似人体的肌肉，能够让人动起来；游戏的美术画面就是人体皮肤，可以让人更加丰满漂亮。&

It overcomes disadvantages of the qualitative engineering analogy and empirical method of ventilation time. It offers the theoretical basis to construction schedule simulation and construction scheme optimization.(2) The 3-D transient quasi-single phase models and a 3-D two phase flow model are proposed together with k-εequations.

采用数学模型解析的方法得到了定量的施工期通风时间参数，克服了传统分析中通风时间参数依据定性工程类比和经验确定的弊端，为施工仿真和施工方案优化提供了理论基础。

This article mainly introduced the city guard rail sweeps clear the vehicle in the development present situation and the present technology insufficiency, has analyzed the domestic formation product technical characteristic and the good and bad points, obtains the present water spray vehicle chassis situation through the contrast, then chooses this design through the analysis comparison each kind of plan, for instance said obtains the hydraulic transmission through the crosswise comparison to teach the mechanical drive the merit, then the further showing hydraulic transmission plan arrangement, obtains the entire wrap equipment on vehicle scheme of arrangement through the analogy, but also absorbs a present more advanced position to correct an error the system.

购买设计，请点击这里和我们直接沟通 QQ：95343510摘要：本文主要介绍了城市护栏清扫车的发展现状和目前技术上的不足，分析了国内成型产品的技术特点和优缺点，通过对比得到目前洒水车的底盘情况，然后通过分析比较选择该设计的各种方案，比如说通过横向比较得出液压传动教机械传动的优点，然后更进一步说明液压传动的方案布置，通过类比得出整套装置在车上的布置方案，还吸收了目前较为先进的位置纠偏系统。

Heat transfer at the wall of a packed bed: A j-factor analogy established ［C］.

床层传热参数的实验测定［J］。

Results The main occupational risk factors that existed in the tobacco plant were noise,dust,high temperature and chemical poisons.Monitoring results of analogy projects showed noise intensities were 74.9-92.4 dB,exceeding rate was 47.5%.The concentrations of dust,carbon dioxide and alcohol were 0.2-1.7,953-2 128,5.4-21.5 mg/m3,respectively,which were below occupational exposure limits.

结果该建设项目存在的职业病危害因素有噪声、粉尘、高温、化学毒物等，类比工程各种职业病危害因素的检测结果为：噪声强度为74.9~92.4 dB，超标率47.5%；烟草尘浓度为0.2~1.7 mg/m3，超标率为0%；作业场所生产性热源的综合温度为30.8~36.5℃，均为高温作业点。

The chart above (an analogy to my Gift/Passion/Purpose three-circle chart for deciding what you're meant to do for a living), shows the Sweet Spot in the middle that, I think, corresponds to true happiness.

上面的图表（一个关于我的天赋，热情，决心三环图，以决定你将要怎样生活）展示的中心部位的交汇点，我认为是真正的快乐。

The author discovered in the exploration, firstly, in Zhu Xi"s reading view both pays great attention the reader to text"s assurance, causes the reader as not to be separated from the text so as to do surpasses the text threshold the understanding, and pays great attention the reader individual experiences seepage to the influence of the reading result which causes the reader not only book not on only, displays the reader individuality fully; Next, Zhu Xi's opinions pays attention to the familiarity with fine thinking, thought that is familiar with fine thinking is the understanding foundation, thinking in reading, reading in thinking, can have a feeling to become aware, also pays great attention to fulfilling experience, thought that the reader wants to experience attentively at the same time, pursues internal conjunction of the reader's and the author's mind, pursues a kind of communication of mind, on the other hand we must use the practice to experience, and to pursue the reader's reading result and the life exchange, only then such reading result can penetrate thoroughly; Finally, Zhu Xi's view also pays great attention the knowledge that soaks thoroughly the penetration. It is thought that the reader must proceed in an orderly way, neither anxiously nor slow, work carefully and make steady progress from the easy to the difficult, and using analogy to make the knowledge interpenetration, learn with a lively mind, and increase reader's ability for the next reading .

在探索中笔者发现，首先，朱熹的阅读观中既注重读者对文本本身的把握，使读者不至于脱离文本做超出文本阈限的理解，又注重读者个性经验的渗透对阅读结果的影响，使读者不唯书不唯上，充分发挥读者个性；其次，朱熹阅读观还注重熟读精思的重要性，认为熟读精思是理解的基础，在读中思，于思中读，才能有所感悟，又注重体验践行，认为读者一方面要用心体验，追求读者与作者心灵内部的契合，追求一种心灵的对话，另一方面要用实践去体验，追求读者阅读结果与生活之间的交流融通，只有这样的阅读结果才能深入透彻；最后，朱熹阅读观还注重知识的浃洽贯通，认为读者读书要循序渐进，不急不缓，由易到难一步一个脚印去做，并运用类推的方法使知识相互贯通，活学活用，使读者的下次阅读受益。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。