嗜吃福將
The MWC can operate with as few as p = 2N channels and with a sampling rate fs = 1/T > B on each channel,so that it approaches the minimal rate of 2NB. Advanced configurations enable additional hardware savings bycollapsing the number of branches p by a factor of q at the expense of increasing the sampling rate of each channelby the same factor [109]. The choice of periodic functions pi(t) is flexible: The highest Dirac frequency needsto exceed fmax. In principle, any periodic function with high-speed transitions within the period T can satisfythis requirement. One possible choice for pi(t) is a sign-alternating function, with M = 2L + 1 sign intervalswithin the period T [109, 161]. Imperfect sign alternations are allowed as long as periodicity is maintained [9].This property is crucial since precise sign alternations at high speeds are extremely difficult to maintain, whereassimple hardware wirings ensure that pi(t) = pi(t + Tp) for every t 2 R. The waveforms pi(t) need low mutualcorrelation in order to capture different mixtures of the spectrum. Popular binary patterns, e.g., the Gold or Kasamisequences, are especially suitable for the MWC [161]. Another important practical design aspect is that the lowpassfilter h(t) does not have to be ideal. A nonflat frequency response can be compensated for in the digital domain,using the algorithm developed in [162].
加勒B海盗
最低工资委员会的操作数=2渠道和采样率=1财政司司长/>对每个通道，所以它的方法的最小速度2nb。先进的配置使附加硬件储蓄所倒塌的分行数目的一个因素，问为代价的增加，每个通道采样率由同一因素[ 109]。选择周期函数皮（吨）是灵活的：最高的狄拉克频率超过25。原则上，任何周期函数与高速内过渡的时期可以满足这一要求。一个可能的选择皮（吨）是一个注册交替作用，米=2+ 1符号间隔在期[ 109，161 ]。不完美的标志还允许只要维持周期是[ 9 ]。此属性是至关重要的准确标志交替高速度是极难维持，而简单的硬件接线确保皮（吨）=π（吨+普瑞尔）每2R波形皮（吨）需要低相互相关为了捕捉不同的混合物的光谱。流行的二进制模式，例如，黄金或kasami序列，尤其适用于康复[ 161]。另一个重要方面是，低通滤波器的实用设计过滤器小时（吨）不一定是理想的。一个非平坦的频率响应可以补偿在数字域，使用方法[ 162]。
霏霏永远爱来来
The product occupies global the proportion to rise to 12.09%, the total quantity already Japanese which close world is listed second information industrial department synthesis planning department Director Wang Jianzhang on said in “2003 China Information industries Base construction and the development high-level forum”: Our country implemented the electronic information industry powerful nation strategy and promotes the electronic information Industrial base construction the condition to be already mature on a large scale. Along with the whole world electronic information industry restructure, in the global scale the new division of labor system is forming, the world electronic information product manufacture shifts obviously to our country. , the electronic information industry gradient shift pattern is very first obvious. The low cost, high grade can meet the requirements which the market seizes. The electronic information industry from the US and Europe to the developing country shift, our country investment environment is good, the labor force level is high, the pool of labor power is rich, happen to meets the developed country industrial shift requirement. Next, world electronic information product manufacturing industry from pure processing manufacture to manufacture research and development transformation. The Multinational corporation invests from the processing manufacture extends to the training research and development knowledge domain. At the same time, the electronic information industry's base accumulative effect appears gradually, the related necessary industry gathers highly, for instance Malaysia's multimedia corridors, our country's Yangtse Delta, Zhujiang Delta, link Persian Gulf area. Therefore, should hold the global industry shift the opportunity, impels the Country Information industries Base on a large scale the construction, will strive for in the present from 10 to 15 years, the promotion electronic information industry will continue the healthy development, will promote our country's in whole world electronic information industry chain status.Looking from domestic, has undergone 20 for many years development, the electronic information industry already became the covering extensive fields, the industrial scale big national economy pillar industry. In the nation industrial system, the electronic information industry occupied the first place position obviously. Looked from the total quantity, our country close world has been listed second Japan. in 2002, our country electronic information industry total sales were 169,300,000,000 US dollars, but Japan was 180,000,000,000 US dollars. Our country occupies the whole world electronic information product the proportion, also from 1996 3.44%, rose to 2002 12.09%, our country has become the electronic information product manufacturing industry great nation which was worthy of the reputation. The partial product like telephone, the handset, the program controlled switch, acoustic, the color TV set as well as the partial primary device product's output has occupied the world first place. other, our country's scientific research technical team expands unceasingly, partial product research and development already close world level. The industry accumulative effect started to appear, has formed Shanghai's integrated circuit base, Suzhou's Taiwanese businessman base, the Beijing and Tianjin area mobile communication base, as well as bases and so on Shenzhen, Xiamen, Xi'an. This implemented the electronic information industry powerful nation strategy for our country to lay the solid foundation.
优质英语培训问答知识库
