哪位大虾帮我翻译下啊

来源:百度知道 编辑:UC知道 时间:2024/05/21 12:08:21
随着社会的进步和技术的发展,人们对通信手段的消费水平和需求日益提高。传统的电话方式已逐渐无法满足这个分秒必争的社会形态,所以如何使电话具有可移动性,特别是大范围的可移动性(漫游性)具有非常重要的意义。分集技术是指通过查找和利用自然界无线传播环境中独立的(至少是高度不相关的)多径信号来实现,简单的说,如果一条无线传播路径中经历了深度衰落,而另一条相对独立的路径中可能仍包含着较强的信号,因此可以在多个信号中选择两个或更多的信号进行合并,这样可以同时提高接收端的瞬时信噪比和平均信噪比。分集技术是移动通信的一种抗衰落技术,是一种用相对较低廉的投资就可以大幅度的改进无线链路性能的强有力的接收技术。利用MATLAB对频率分集技术在移动通信中应用的仿真,可以验证频率分集技术在移动通信中的应用为补偿衰落信道损耗所起的功用。

Along with social advance with technical development, people to consumption level that correspondence means with require with to increases increasingly.The traditional telephone method can't satisfy a social appearance for seizing every minute and second already and gradually, so how to make telephone had to can move the sex, the especially big scope can move the sex( travel extensively the sex) has the count for much meaning.The cent gathers the technique is to points to pass to check to seek with make use of the nature lead-in spreads independent many paths signal in inside in environment to realize, say in brief, if a lead-in spreads to experience in the path the depth decline, but another an opposite and independent path inside may still include the stronger signal, therefore can win election to choose two moment for or more signals proceeding merging, like this can at the same time increasing receiving carryings letter noise ratio peace in several signals all letter roise r