衰落中的

First, life in a declining industry can be fine.

首先，一个衰落行业中的生活可能会很棒。

It increases the spectral usage efficiency, and at the same time, it can reduce ISI greatly.

OFDM适用于多径环境和频率选择性衰落信道中的高速数据传输。

Based on the analysis of the Doppler effect of the mobile channel, the performance of two MIMO-OFDM systems (STTC-OFDM and SFBC-OFDM) in the fast-moving environment is studied. Then, the algorithm for channel estimation based on the training sequence is extended into the fast-moving environment by introducing the space-frequency coding, the method of the equal-interval pectinate pilot-inserting, and the complete Maximum-Likelihood space-frequency decoding.

针对快速移动环境中存在的多普勒效应，研究了两种多输入多输出正交频分复用系统在快衰落信道中的误码性能，采用空频编码梳状等间隔导频插入方式，以及完全最大似然空频分组码解码算法，使用导频与接收信号进行信道参数估计，将一般多输入多输出正交频分复用系统中的基于训练序列的最小均方误差信道估计算法推广到了快衰落信道环境中。

In the twilight of his life .

他一生中的衰落时期。。

Recently, of the wireless channel transform operations, especially in the future wireless transform system such as 3G, 4G and wireless LAN with the operation of image and video, because of the wireless channel characteres such as signal fading, multi-way reflection and so on, traditional coding methods become more and more unfitting.

在近来的无线信道传输业务中，特别是在将来的3G、4G以及无线局域网等无线信道传输系统中的图像乃至视频传输业务中，由于无线信道的信号衰落、多径反射等诸多特点，使得传统的编码方法越来越难以胜任。

In the mean time, the boundaries and organizational structures of enterprises in an industry are also continuingly changing.

以往的文献研究了产业成长中兴起、发展和衰落的动态过程，但并未具体分析产业变迁过程中的结构特点和组织形式。

But if the principle of the pretension be admitted, no one can reasonably object to its being acted on in the sense of the majority, or other preponderating power in the country; and all persons must be ready to conform to the idea of a Christian commonwealth, as understood by the early settlers in New England, if a religious profession similar to theirs should ever succeed in regaining its lost ground, as religions supposed to be declining have so often been known to do.

但如果承认了它所据以肆行僭越的原则，那就没有理由还能反对它在国内多数人或者其他优势力量的情绪中受到影响；而如果类似新英格兰早期定居者所抱的一种宗教信仰竟有一天能象所谓衰落中的宗教往往做到的那样成功地恢复了它所失去的阵地，那么，我们大家就只好准备接受一个如他们所理解的基督教国家的观念。

Finally we combine turbo code with OFDM technology ,then make some emulations under several kinds of channel fading types in the mobile communication ,it has offered new choice for turbo code applying in fading channel.

所以最后我们将Turbo码与OFDM技术相结合，针对移动通信信道的各种不同的衰落类型进行仿真分析，为Turbo码在衰落信道中的应用提供了新的选择。

With the description of the measurement error as Gaussian random variable,the error of real-time measurement of slow fading signal with the RAKE receiver is analyzed.

本文研究了宽带衰落信道中慢衰落信号的实时测量，通过将测量误差描述为高斯分布的随机变量，分析了利用RAKE接收机实时测量慢衰落信号的误差。

There was a young flower in a desert where was always dried and sad-looking. It was growing by itself, enjoying everyday and saying to the Sun "When shall I be grown up?"

在一个周围充满着干燥与衰落景象的沙漠中，有一朵小花正绽放着……她孤单地生长着……快乐地过着每一天……她对太阳说：&我什么时候才能长大呀？&

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。