It is still mathematically po ible for china to advance to the second round if they defeat turkey in their next game and brazil beat costa rica 数字上中国仍机会晋身次圈。前提是他们下仗击败土耳其，及巴西击败哥斯达黎加。
It is still mathematically possible for china to advance to the second round if they defeat turkey in their next game and brazil beat costa rica 数字上中国仍机会晋身次圈。前提是他们下仗击败土耳其，及巴西击败哥斯达黎加。
The software radio consists of several parts as follow : analog front end , broadband a / d and d / a , digital upper / down converter , high - speed signal processor and so on 它由以下几个部分组成:模拟前端,宽带a / d和d / a ,数字上/下变频器,高速数字信号处理器等。
Of course , we can circumvent all of these sticky issues by simply looking up some shell - spinning code that is known to work and copying it ）声称它“看来是唯一为统计目的而特别设计的发生器，而且制造商花了一定的精力来了解最终产生的数字上的偏差和相关性的作用。 ”
Digital down / up converter ( ddc / duc ) , modulation and demodulation are discussed in the dissertation as some essencial parts of sdr platform 本文以软件无线电的理论为基础，研究了软件无线电中的部分关键技术：包括数字上下变频的实际处理模型以及调制解调部分的实现。
As a result , some key technologies of sdr such as modulation , demodulation , ddc and dug have been hot topics . in this paper , some key technologies of sdr are researched deeply 于是，软件无线电中的一些关键技术，例如：调制解调技术，数字上变频，数字下变频等成为该领域的研究热点。
The transmitter is capable , when coupled with appropriate software , of digital modulation schemes such as pi - qpsk , gmsk and so forth , and supervised by a personal computer 它主要由一片dsp与可编程数字上变频器构成，可以通过pc机进行监控，通过加载合适的软件实现各种调制方式如pi 4 - qpsk ， gmsk等。
This is a fairly typical sort of complex data , in this case ordering something by date , time , and id number by concatenating the numbers into a single number that we can then sort numerically 这是一个典型的复杂数据排序操作，在该例中，要对日期、时间和id号进行排序，这是通过将数字连接在一个数字上，然后对其进行数字排序实现的。
It is very difficult to realize digital rf , but we can realize digital if . digital if mainly include : digital up convert ( duc ^ digital down convert ( ddc ) , a / tk d / a and number control oscillator ( nco ) 目前实现射频数字化还有一定的困难，但可以实现中频部分数字化。数字中频处理主要包括数字上变频、数字下变频、 a d与d a的处理以及数控振荡器等。
Here we try out a hard way with video card to realize it . in the second place , we discuss some ways of digital modulation in transmission of image data , for example bpsk , qpsk , qam , and so on 随后，针对qpsk ，详细讨论了其基本原理和具体的实现算法，并进行了仿真验证，然后选用hsp50215数字上变频芯片和hsp50214b数字下变频芯片，设计了数字调制、解调器的实现方案。
