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对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采 用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。-IQ receiver for the two most important parameters, namely I and Q components of two-way consistency between the amplitude and phase orthogonality may be adopted calculated using the following method: to I, Q 2 signals, respectively for FFT, to find a frequency domain signal amplitude, can be considered as two-way component caused by the range of 1 the I, Q 2 signals into one complex signal for FFT, the spectrum demand of the received image rejection ratio (ie, frequency domain signal and magnitude of the signal mirror ratio), through the image rejection ratio and extent of consistency, the receiver can be derived I and Q phase between the two-way component orthogonality.

关于学习linux的指导书籍，从基础开始讲起，适合于广大的linux爱好者-Guidance on learning linux books, from basic to start talking about, is suitable for the majority of the linux lovers

本资料为《MATLAB通信仿真及应用实例详解 》书本上的仿真 　　本书着重介绍了MATLAB在通信仿真，尤其是移动通信仿真中的应用，通过丰富具体的实例来加深读者对通信系统仿真的理解和掌握。全书共分10章，前3章介绍MATLAB通信仿真的基础，包括Simulink和S-函数；第4~8章分别介绍了信源和信宿、信道传输、信源编码、信道编码、信号交织以及信号调制的仿真模块及其仿真实现过程；第9章介绍了在通信系统的仿真和调试过程中经常遇到的问题及其解决办法；最后，第10章以cdma2000为例介绍了移动通信系统的设计和仿真。本书适用于通信行业的大专院校学生和研究人员，既可以作为初学者的入门教材，也可以用作中高级读者和研究人员的速查手册。 -this information as "MATLAB simulation and communication application example explanation" book on the simulation focused on the book- stay in communication MATLAB simulation, especially for the mobile communications simulation applications, through the rich and specific examples to deepen readers of the communications system simulation to understand and grasp. The book is divided into 10 chapters, the first three chapters on MATLAB simulation based communications, including Simulink S-Function; 4 ~ 8 respectively on the source and destination node, Channel Tunnel, source coding, channel coding, signal modulation signal intertwined and simulation module and

VB的教案,初学者可以来看看,教vb的也可以来参考一下啊-VB lesson plans, beginners can look at the vb could come and take a look ah

java优化编程,是一本很好的java编程指导丛书.也是很难的的资料-java optimization programming, is a very good java programming guide books. The information is very difficult

目前使用的键盘主要有两类：按键式键盘和旋钮式键盘。手机按键、微机键盘都属于按键式键盘。本文介绍的是旋钮式键盘的实现方法。 -Currently in use the keyboard there are two categories: push-button keyboard and knob-style keyboard. Mobile phone keypad, computer keyboard are all touch-tone keypad. This article is the knob-style keyboard realization.

这是一个PDF文档,里面的原理不错,大家可以-This a PDF document containing the principles of good, we will look at

经典的LINUXC函数手册，相信对每个学LINUXC人都会有用-Classic function LINUXC manual, I believe that for each study will be useful LINUXC

分类中没有! 是Fortran 的源码,来源于国外!-classification, no! Yes Fortran source code, from abroad!

C语言程序远设计手册,为了方便对C语言的了解 -cdesign_handboo