硬件

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。

One of the main objectives of this thesis is to find out the design errors and oversights of the platform so that the specified algorithms can be implemented on the platform in the future time.

其目的是为了能够找出硬件平台中的设计错误和疏漏，确保其正常运行，为今后在该硬件平台上实现具体的算法打下基础。

It is also outgunned by the iPhone's 140,000 applications, which means it needs more creative input into its products.

而即便是这些硬件，跟iPhone的14万种应用软件来比，也是处于下风的，这意味着三星需要对其硬件进行更多的创新投入。

In this paper ,the correcting methods for hardware and software are suggested respectively and their strong and weak p oints are summarized.

分别从硬件和软件两方面给出了校正的方法，并对硬件、软件校正的优缺点做出了总结。

The research of neural network realization can be traced back to 60's. It processes along with two avenues: fully hardware realization and virtual realization. Scientists have developed many neurochips supporting fully hardware realization. Neurocomputing simulating supporting environments, neurocomputing accelerators and parallel neurocomputing systems also have been developed for virtual realization of neural network.

神经网络实现技术的研究可以追朔到六十年代，该项研究一直是沿两个方向开展，即神经网络的全硬件实现和神经网络的虚拟实现，科学加们也研制出了许多支持神经网络全硬件实现的神经芯片，以及支持神经网络虚拟实现的各种神经计算软件模拟环境、加速器和并行神经计算机系统。

Based on the cost of hardware implementation and the precision of estimation, a new block-matching algorithm named the Hierarchical Quasi-Full Search Algorithm is proposed.

综合考虑硬件成本和运动估计的精度，提出了一种易于硬件实现的运动估计算法，称之为分层准全搜索法。

These two structures can decrease the adding new failure probability to neglectful level while hold the advantages of easy of implementation and lower system cost.(3) With the analysis of several kinds of high volume hardware hash table, a DRAM based multi-level hash table structure is proposed.

3分析了几种大容量硬件哈希表实现结构，提出了一种基于DRAM的多级硬件哈希表结构，并对其静态查表性能和动态查表性能进行了深入研究，具有一定的理论和实用价值。

A controller of electromagnetic lock unit consists of software and hardware including power supply module, communication module, core control module designed by AT89S52 microprocessor, driving control module of electromagnetic lock and electro detection module.

一种电磁锁单元控制器，其特征在于，其包括硬件电路部分和软件部分，该硬件电路部分包括电源模块、通讯模块、核心控制模块、电磁锁驱动控制模块和验电检测模块；该核心控制模块采用AT89S52微处理器进行设计。

Here are the differences you can see: SMOKE TESTING: Smoke testing originated in the hardware testing practice of turning on a new piece of hardware for the first time and considering it a success if it does not catch fire and smoke.

可以看到以下不同之处：冒烟测试：冒烟测试起源于硬件测试，其习惯于第一次打开新硬件时检查如果没有着火或冒烟，则视其是一次成功。

The successful mobile terminal test cases, which has completed With virtual instrument platform LabVIEW, shows that the research and development of TD-SCDMA terminal testing based on virtual instrument technology is the way forward.

本文首先介绍了一种基于虚拟仪器的终端综合测试解决方案；然后重点研究了在TD-SCDMA终端发射机与接收机的一致性测试中所需要测试的指标和测试方法、原理与算法；最后利用虚拟仪器软件NI LabVIEW 7.1编写了部分发射机测试指标的算法模块，并利用现有的仪器和硬件设备，搭建了一个仿真测试环境，同时配合编写了一个软件平台，实现对硬件的控制和对测试模块的调用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。