查询词典 frames

I proudly build their racquets with as much attention to detail as Mr. Sampras' frames.

而我自豪地说我对们和桑普拉斯是一視同仁。

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。

The object of optimization includes different aspects of structural engineering This paper attempts to review the state-of-art of the applications of optimization technique to the design of civil engineering structures, such as beams, purlins, frames, bridges, guyed masts and building systems with emphasis on mathematical models used and the economical benefits obtained.

优化的对象涉及结构工程的各个方面。本文试图综述各国在土建结构设计中运用优化技术的概况，类如梁、懔条、框排架、桥梁、桅杆以及建筑体系等，着重于所采用的数学模型与经济效果。

Constant load stress: Constant load refers to the structure of the shelf itself, self-respect, and the Housing Connection C-shaped steel frames, purlins, the Housing frame, roof, panel weight.

受力恒荷载：恒荷载指货架本身结构的自重，连接C型钢和房架、檩条、房架、屋面板、墙板的重量。

The heat treatment technology of the column wear plate s of Zhuan 8A bogie frames is described, and the effects of two different heat treatment technologies on the wear plate structure are analyzed.

论述了转8A型转向架侧架立柱磨耗板的热处理工艺，分析了2种不同热处理工艺对磨耗板组织的影响。

The cabinet is filled with locally sourced treasures: reclaimed wood frames that display photos of Soto's nieces, a polka-dotted piggy bank, children's books and seashells.

这个陈列柜书架上装满了当地的珍品：回收的旧木料做成的框架陈列着德索托侄女的照片，布满花点的存钱罐，儿童的书籍和贝壳。

I have, therefore, chosen this drawing-room, where you see, smiling and happy in their magnificent frames , your portrait, mine, my mother's, and all sorts of rural landscapes and touching pastorals

所以我选择了庄严的客厅，在这里，在这些华丽的镜框里，您可以看到您、我和我母亲的微笑的画像，以及各种各样的田园风光和牧场景色，我很重视外界影响的力量。

The parterres, frames decorated with flowers and plants, stand on either side of Chang'an Street.

该parterres ，框架装饰用鲜花和植物，站在两侧的长安街。

The parterres, frames decorated with flowers and plants, stand on either side of Chang'an Street.

这个花坛用花朵和植物装饰边框，位于长安街的两边。

The same colour is used for the headlight frames and the wing mirrors, while the dark finish of the headlight parabolas is achieved by a brand new metal sublimation technology.

同样的颜色是用于大灯框架和后视镜，而黑暗的大灯抛物线外层，取得了新的品牌金属升华技术。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。